# ForecastAdvisor Weather & Climate Data Provider Directory

> Directory of weather and climate data providers, maintained by
> ForecastAdvisor (forecastadvisor.com), powered by ForecastWatch,
> the independent weather forecast accuracy evaluator since 2004.
> License: CC-BY-4.0 (attribution: ForecastAdvisor / ForecastWatch).

## Weather APIs & Data Feeds

- AccuWeather For Business: Enterprise APIs, alerting, and meteorologist services from the consumer-weather major. (State College, PA, US | Global | Forecast API, Severe weather alerting, SkyGuard meteorologists)
- Ambee: Environmental data APIs spanning weather, air quality, pollen, and wildfire. (Bangalore, India | Global | Weather API, Air quality, Pollen, Fire)
- Azure Maps Weather: Microsoft's weather API inside Azure Maps, reselling partner forecast data with cloud-native billing. (Redmond, WA, US | Global | Forecast API, Radar tiles, Severe alerts)
- CustomWeather: Long-running syndicated weather feed and API provider for media and enterprise, founded 1999. (San Francisco, CA, US | Global | Forecast feeds, Marine, Alerts)
- DTN: Operational weather and market intelligence across energy, agriculture, aviation, and shipping. (Minneapolis, MN, US | Global | Weather APIs, Vertical platforms, Forensic & consulting)
  ForecastWatch: tracked.
- Foreca: Finnish forecast data provider licensing feeds to apps, automotive, and media worldwide. (Helsinki, Finland | Global | Forecast feeds, Road weather, Marine)
  ForecastWatch: tracked.
- Google Weather API: Weather endpoints in the Google Maps Platform, backed by Google's forecasting stack. (Mountain View, CA, US | Global | Forecast API, Current conditions, Hourly history)
- meteoblue: Multi-model forecasting spun out of the University of Basel; majority-owned by Windy since 2024. (Basel, Switzerland | Global | Forecast API, History+ archive, Maps & widgets)
- Meteomatics: Enterprise weather API blending 110+ data sources, with weather drones and a European 90 m model. (St. Gallen, Switzerland | Global | Forecast API, Historical, Model data, Meteodrones)
- Meteored: Spanish weather media network (tiempo.com) licensing forecast data and running its own model composites. (Murcia, Spain | Global | Forecast feeds, Media syndication)
- Meteosource: Machine-learning multi-model weather API with minute-scale precipitation and long-range endpoints. (Prague, Czech Republic | Global | Forecast API, Minutely precipitation, Historical)
  ForecastWatch: tracked since 2026.
- Open-Meteo: Open-data weather API; free for non-commercial use, source code AGPL, data CC-BY 4.0. (Bürglen, Switzerland | Global | Forecast API, Historical reanalysis, Ensemble & model endpoints)
  ForecastWatch: tracked since 2023.
- OpenWeather: Widely adopted weather API with a large free tier; current, forecast, and historical data worldwide. (London, UK | Global | Forecast API, Historical, Maps & tiles, Air quality)
  ForecastWatch: tracked since 2019.
- Pirate Weather: Open-source, Dark Sky-compatible forecast API built on public NOAA model data. (Canada | Global | Forecast API, Dark Sky-compatible schema)
  ForecastWatch: tracked since 2022.
- Spire Global: Satellite radio-occultation observations and weather forecast APIs from a proprietary nanosatellite fleet. (Vienna, VA, US | Global | Forecast API, Maritime weather, Satellite observations)
- Storm Glass: Multi-source marine and global weather API that exposes several underlying providers per parameter. (Stockholm, Sweden | Global | Marine API, Multi-source forecast, Tides & solar)
- The Weather Company: Data and forecasting business behind weather.com and Weather Underground, owned by Francisco Partners. (Atlanta, GA, US | Global | Forecast API, Broadcast & media tools, Advertising data)
- Tomorrow.io: Weather intelligence platform with APIs, operational dashboards, and a proprietary radar-satellite constellation. (Boston, MA, US | Global | Forecast API, Weather intelligence platform, Satellite observations)
- Visual Crossing: Weather API and query tools with deep historical archives, aimed at analytics and data-science workloads. (Reston, VA, US | Global | Forecast API, Historical, Bulk query tools)
  ForecastWatch: tracked since 2025.
- Weather Source (Pelmorex): Analytics-ready OnPoint weather and climate data, distributed through Snowflake and cloud marketplaces; part of Pelmorex. (Toronto, Canada | Global | OnPoint API, Snowflake/cloud datasets, Historical)
  ForecastWatch: tracked.
- WeatherAPI.com: High-volume freemium weather and geolocation API operated by Zoomash Ltd. (London, UK | Global | Forecast API, Historical, Astronomy, Sports)
  ForecastWatch: tracked since 2026.
- Weatherbit: Forecast, historical, and sub-hourly weather APIs with agriculture and energy add-ons. (Raleigh, NC, US | Global | Forecast API, Historical, Sub-hourly, Ag weather)
  ForecastWatch: tracked since 2019.
- weatherstack: Freemium real-time and historical weather REST API in the apilayer (Idera) portfolio. (Vienna, Austria | Global | Current conditions, Forecast API, Historical)
  ForecastWatch: tracked since 2025.
- World Weather Online: Low-cost weather API for developers and SMBs, operated by Zoomash Ltd; includes marine and ski endpoints. (London, UK | Global | Forecast API, Marine, Ski)
  ForecastWatch: tracked since 2011.
- Xweather (Vaisala): Vaisala's weather API and mapping platform (formerly AerisWeather), paired with Vaisala's observation hardware. (Helsinki, Finland | Global | Forecast API, Radar & maps, Lightning, Road weather)
  ForecastWatch: tracked since 2019.

## AI Weather Models

- Atmo: AI meteorology systems sold to governments and militaries, including sovereign national deployments. (Berkeley, CA, US | Global | Sovereign AI forecasting, Hardware + model deployments)
- Brightband: AI weather and climate forecasting startup building open-model-based products. (Boulder, CO, US | Global | AI forecasts, Open models)
- Excarta: AI-powered weather intelligence for energy and utilities, delivered via API. (San Francisco, CA, US | Global | AI forecasts, Energy analytics)
- Google DeepMind WeatherNext: DeepMind's AI forecast models (WeatherNext), commercialized through BigQuery and Google Maps Platform. (London, UK | Global | AI model forecasts, Cloud datasets)
  ForecastWatch: tracked.
- Jua: Foundation-model weather forecasting aimed at energy trading, with self-published benchmark comparisons. (Zurich, Switzerland | Global | AI model (EPT), Energy trading focus)
- NVIDIA Earth-2: Platform and model stack (CorrDiff, FourCastNet) for GPU-accelerated weather and climate simulation. (Santa Clara, CA, US | Global | Model platform, Downscaling)
- Salient Predictions: Subseasonal-to-seasonal AI forecasts (2-52 weeks) for energy, agriculture, and water. (Cambridge, MA, US | Global | S2S forecasts, API & analytics)
- Silurian AI: Foundation models for Earth-system simulation, founded by former DeepMind GraphCast researchers. (San Francisco, CA, US | Global | AI forecasts, Model access)
- WindBorne Systems: Long-duration balloon constellation feeding an AI forecast model; defense and energy customers. (Palo Alto, CA, US | Global | AI forecasts, Balloon observations, Government contracts)
- Zeus AI: MIT-spinout applying machine learning to satellite observations for high-resolution forecasting. (US | Global | AI forecasts, Satellite retrievals)

## Renewables Forecasting

- ArcVera Renewables: Technical consultancy for wind and solar resource, energy assessment, and forecasting. (Golden, CO, US | Global | Energy assessments, Forecasting services)
- Clir Renewables: Portfolio intelligence and performance analytics for wind and solar owners. (Vancouver, Canada | Global | Performance analytics, Portfolio benchmarking)
- ConWX: Power production forecasting for wind and solar portfolios; part of Volaris Group. (Copenhagen, Denmark | Global | Production forecasts, Portfolio services)
- EMD International: windPRO software and energy forecasting services for wind project development. (Aalborg, Denmark | Global | windPRO, Forecasting services)
- enercast: AI-based wind and solar power forecasts for parks, portfolios, and grid operators. (Kassel, Germany | Global | Wind forecasts, Solar forecasts)
- energy & meteo systems: Wind and solar power forecasts plus virtual power plant software for utilities and TSOs. (Oldenburg, Germany | Global | Power forecasts, VPP software)
- Meteodyn: CFD-based wind resource software and renewable production forecasting. (Nantes, France | Global | Wind modeling software, Production forecasts)
- Meteotest: Swiss weather services firm behind the Meteonorm solar climate dataset. (Bern, Switzerland | Global | Meteonorm, Forecast services)
- Nnergix (Sentinel): Energy forecasting SaaS (Sentinel Weather Analytics) for renewables and utilities. (Barcelona, Spain | Global | Production forecasts, Weather analytics)
- Open Climate Fix: Non-profit building open-source solar nowcasting used by National Grid ESO. (London, UK | UK | Open-source nowcasting)
- Overspeed: Wind power forecasting and grid integration services. (Oldenburg, Germany | Europe | Wind forecasts)
- Reuniwatt: Cloud-cover and solar forecasting using sky imagers and satellite nowcasting. (Réunion, France | Global | Solar nowcasts, Sky cameras)
- Solargis: Solar resource data and assessment used widely in PV project finance and operations. (Bratislava, Slovakia | Global | Solar resource maps, Time series & TMY, Forecasts)
- Solcast (DNV): Satellite-derived solar irradiance and PV power forecasts; winner of EPRI's multi-vendor trial; part of DNV. (Sydney, Australia | Global | Irradiance API, PV power forecasts, Historical TMY)
- Steadysun: Solar production forecasting from minutes to days ahead, including sky-imager nowcasts. (Le Bourget-du-Lac, France | Global | PV forecasts, Sky imager nowcasting)
- UL Solutions Renewables: Resource assessment and energy forecasting advisory built on the AWS Truepower acquisition. (Chicago, IL, US | Global | Resource assessment, Advisory)
- Vaisala Renewables: Wind and solar resource assessment and forecasting built on the 3TIER heritage. (Helsinki, Finland | Global | Resource assessment, Production forecasts)
- Whiffle: GPU-based large-eddy-simulation weather models for wind farm forecasting and siting. (Delft, Netherlands | Global | LES modeling, Wind forecasts)

## Energy Trading & Enterprise Forecasting

- Amperon: AI demand and supply forecasting for energy traders and retailers; distributed via Yes Energy. (Houston, TX, US | US, Europe, Australia | Load forecasts, Renewables forecasts)
- Atmospheric G2: Weather intelligence for energy trading and commodity markets. (Boston, MA, US | North America, Europe | Trading forecasts, Analytics)
  ForecastWatch: tracked.
- CFAN: Climate Forecast Applications Network: extended-range and hurricane forecasts for energy and water sectors. (Reno, NV, US | Regional | Extended-range forecasts, Tropical forecasts)
  ForecastWatch: tracked.
- Commodity Weather Group: Meteorologist-led weather analysis for energy and agriculture trading desks. (Bethesda, MD, US | Global | Trader briefings, Seasonal outlooks)
- cQuant.io: Energy analytics platform for portfolio valuation and risk, consuming weather-driven price simulations. (Denver, CO, US | Global | Energy analytics, Risk simulation)
- Enverus: Energy analytics platform whose trading products include weather-driven forecasting. (Austin, TX, US | Global | Energy analytics, Trading intelligence)
- MetDesk: Specialist energy meteorology desk serving European power and gas traders. (Wendover, UK | Global | Trading weather, Bespoke forecast desks)
- Meteologica: Energy forecasting for power markets: demand, prices, and renewable production. (Madrid, Spain | Global | Market forecasts, Production forecasts)
- Speedwell Climate: Settlement-grade weather data and indices underpinning the weather-derivatives market. (London, UK | Global | Settlement data, Weather indices)
- Volue: Nordic energy software group with power market forecasting and insight services. (Oslo, Norway | Europe | Market forecasts, Energy software)
- Wettermanufaktur: German forecast provider serving energy and utility customers with optimized point forecasts. (Berlin, Germany | Global | Point forecasts, Energy meteorology)
  ForecastWatch: tracked.

## Climate Risk & Catastrophe Modeling

- Climate X: Asset-level climate risk projections (Spectra) for banks and real-estate portfolios. (London, UK | Global | Spectra platform, Adaptation analytics)
- Cotality (CoreLogic): Property data and analytics group with hazard and climate risk scoring for real estate and insurance. (Irvine, CA, US | Global | Property hazard data, Underwriting analytics)
- Fathom (Swiss Re): Global flood hazard data and maps for insurance, engineering, and finance; acquired by Swiss Re. (Bristol, UK | Global | Flood hazard maps, Risk data)
- First Street (MSCI): Property-level US climate risk models (flood, fire, wind, heat); acquired by MSCI in 2026. (New York, NY, US | US | Property risk scores, Risk Factor data)
- ICEYE: SAR satellite constellation providing flood and wildfire observation for insurers and governments. (Espoo, Finland | Global | SAR imagery, Flood monitoring)
- Jupiter Intelligence: Physical climate risk analytics for enterprises and financial institutions. (San Mateo, CA, US | Global | ClimateScore, Portfolio risk analytics)
- KatRisk: Catastrophe modeling specialist focused on global flood and wind. (Berkeley, CA, US | Global | Flood cat models, SpatialKat)
- Mitiga Solutions: Science-based catastrophe and climate risk modeling; absorbed Cervest's EarthScan. (Barcelona, Spain | Global | Cat risk models, EarthScan)
- Moody's RMS: Catastrophe risk modeling for the global insurance and reinsurance industry. (Newark, CA, US | Global | Cat models, Climate risk analytics)
- One Concern: Resilience analytics quantifying downtime risk from natural hazards and infrastructure dependencies. (Palo Alto, CA, US | US, Japan | Downtime risk, Resilience scores)
- Reask: ML-based tropical cyclone hazard modeling and global wind risk analytics. (Sydney, Australia | Global | Cyclone models, Hazard APIs)
- Riskthinking.AI: Stochastic climate risk data and scenario analytics for financial markets. (Toronto, Canada | Global | Scenario engines, Risk data)
- S&P Global Sustainable1: S&P's sustainability data arm, including physical climate risk exposure scores. (New York, NY, US | Global | Physical risk scores, ESG data)
- Sust Global: Satellite-informed climate risk data delivered via API for finance and ESG workflows. (San Francisco, CA, US | Global | Climate data API, Scenario projections)
- Verisk: Insurance analytics group whose Extreme Event Solutions unit builds catastrophe models. (Jersey City, NJ, US | Global | Cat models, Insurance analytics)
- XDI (Climate Risk Group): Physical climate risk analysis for assets, companies, and sovereigns. (Sydney, Australia | Global | Asset-level risk, Benchmark series)
- ZestyAI: AI property risk models for wildfire and severe convective storm underwriting. (San Francisco, CA, US | North America | Wildfire risk, Hail & wind risk)

## Agriculture

- Agrology: Predictive agronomy sensing for vineyards and specialty crops, including smoke and microclimate. (Washington, DC, US | US | Microclimate sensing, Predictive agronomy)
- Arable: In-field sensing hardware plus weather and crop analytics for irrigation and agronomy. (San Francisco, CA, US | Global | Field sensors, Crop analytics)
- ClimateAi: Seasonal-to-decadal climate forecasting for agricultural supply chains. (San Francisco, CA, US | Global | S2S forecasts, Supply-chain risk)
- CropX: Soil-sensor-driven agronomy platform integrating weather data for irrigation planning. (Netanya, Israel | Global | Soil sensors, Agronomy platform)
- HailTrace: Hail swath maps and storm verification for roofing, insurance, and agriculture. (Oklahoma City, OK, US | US | Hail maps, Storm reports)
- Ignitia: Tropical weather forecasting delivered to smallholder farmers via SMS. (Stockholm, Sweden | Tropics | Tropical forecasts, SMS delivery)
- Pessl Instruments (METOS): Ag-weather stations and FieldClimate decision tools sold worldwide. (Weiz, Austria | Global | Stations, FieldClimate platform)
- Semios: Orchard and vineyard IoT platform with in-canopy weather networks and frost alerting. (Vancouver, Canada | North America, Australia | IoT network, Frost & pest models)
- Sencrop: Connected ag-weather stations and a field-level forecast app for European growers. (Lille, France | Europe, North America | Station network, Field forecasts)

## Maritime, Aviation & Road

- ForeFlight (Boeing): Flight planning apps whose weather layers serve most of US general aviation. (Houston, TX, US | Global | Aviation weather, Flight planning)
- Iteris ClearPath: Road-weather forecasting (ClearPath Weather) for state DOTs and winter maintenance. (Austin, TX, US | North America | Road weather, Maintenance decision support)
- Jeppesen (Boeing): Navigation and flight-operations data services including aviation weather. (Englewood, CO, US | Global | Nav data, Aviation weather)
- Klimator: Road condition forecasting (Road Status Information) for winter road maintenance. (Gothenburg, Sweden | Europe | Road forecasts, AHEAD sensing)
- NAVBLUE (Airbus): Airbus flight-operations services with weather-aware trajectory products. (Toulouse, France | Global | Flight ops, Weather integration)
- SkyPath: Crowdsourced turbulence nowcasting network for airlines and business aviation. (Tel Aviv, Israel | Global | Turbulence nowcasts, API & EFB apps)
- Sofar Ocean: Spotter buoy network and Wayfinder voyage optimization built on real-time ocean observations. (San Francisco, CA, US | Global | Buoy network, Wayfinder routing)
- StormGeo: Ship routing, offshore, and enterprise weather services; part of Alfa Laval. (Bergen, Norway | Global | Ship routing, Offshore forecasts, Enterprise weather)
- Tidetech: Metocean data (currents, tides, waves) for shipping efficiency and sport. (Hobart, Australia | Global | Currents & tides, Metocean APIs)
- Weathernews Inc.: The largest private weather company; voyage routing for thousands of vessels plus aviation and media services. (Chiba, Japan | Global | Voyage routing, Aviation, Media feeds)

## Sports, Events & Safety Operations

- Baron Weather: Broadcast weather systems and critical-weather intelligence for media and public safety. (Huntsville, AL, US | Global | Broadcast graphics, Threat detection)
- Climavision: Private radar network filling US coverage gaps, plus high-resolution forecasting. (Louisville, KY, US | US | Private radar, Forecast models)
- Earth Networks (AEM): Total Lightning Network and outdoor alerting, part of the AEM environmental-monitoring group. (Germantown, MD, US | Global | Lightning network, Sferic alerting)
- Perry Weather: On-site weather safety platform (lightning horns, alerts) for sports, schools, and construction. (Dallas, TX, US | US | Lightning alerting, On-site hardware, Safety dashboard)
- WeatherWorks: Forensic meteorology and snow-event certification for municipalities and contractors. (Hackettstown, NJ, US | US | Forensic reports, Snow certification)

## Parametric Insurance

- Arbol: Parametric insurance platform pricing weather risk with the dClimate data network. (New York, NY, US | Global | Parametric covers, Climate data network)
- CelsiusPro: Parametric structuring platform and white-label tools; acquired Global Parametrics. (Zurich, Switzerland | Global | Structuring platform, Index design)
- Descartes Underwriting: Data-driven parametric insurance for climate and emerging risks, sold through brokers. (Paris, France | Global | Parametric covers, Corporate risk)
- FloodFlash: Sensor-based parametric flood insurance paying out on measured water depth. (London, UK | UK, US | Flood sensors, Parametric payout)
- IBISA: Parametric climate insurance for smallholder agriculture in emerging markets. (Luxembourg | Asia, Africa | Ag parametrics, Index monitoring)
- OKO: Mobile-first crop insurance for farmers in West Africa using satellite weather indices. (Tel Aviv, Israel | Africa | Mobile crop insurance, Satellite indices)
- Raincoat: Embedded parametric climate insurance infrastructure for banks and insurers. (San Juan, Puerto Rico | Americas | Embedded insurance, Payout automation)
- Sensible Weather: Weather guarantees for travel and outdoor experiences, reimbursing on rain hours. (Los Angeles, CA, US | US, Europe | Weather guarantee, Embedded travel product)
- Skyline Partners: Parametric MGA building index insurance (INSDEX) across climate perils. (London, UK | Global | Index design, MGA capacity)
- Understory: Hail-sensor networks backing parametric hail cover for auto dealers and solar. (Madison, WI, US | US | Hail sensors, Parametric hail)
- WeatherPromise: Trip-level rain protection embedded in travel booking flows. (New York, NY, US | Global | Rain protection, Travel partnerships)

## Observation Networks & Hardware

- AEM: Environmental-monitoring group spanning Earth Networks, Davis Instruments, FTS, and OneRain. (Germantown, MD, US | Global | Sensor networks, Hydromet systems)
- Ambient Weather: Consumer and prosumer weather stations with a large connected network and API. (Chandler, AZ, US | US | Stations, Network API)
- Barani Design: MeteoHelix IoT micro-weather stations and WMO-compliant radiation shields. (Bratislava, Slovakia | Global | MeteoHelix stations, Shields)
- Campbell Scientific: Research-grade dataloggers and weather stations used across science and infrastructure. (Logan, UT, US | Global | Dataloggers, Research stations)
- Davis Instruments (AEM): Vantage Pro prosumer weather stations with WeatherLink connectivity; part of AEM. (Hayward, CA, US | Global | Vantage stations, WeatherLink)
- OTT HydroMet: Hydrology and meteorology sensors (OTT, Lufft, Kipp & Zonen) within Veralto. (Kempten, Germany | Global | Met sensors, Hydromet instruments)
- PlanetiQ: Commercial GNSS radio-occultation satellites selling atmospheric soundings to NOAA and others. (Golden, CO, US | Global | Radio occultation, Satellite soundings)
- Saildrone: Uncrewed surface vehicles collecting ocean and hurricane observations for government and science. (Alameda, CA, US | Global oceans | USV missions, Ocean observations)
- Synoptic Data: Public-benefit aggregator of tens of thousands of surface stations, serving research and industry APIs. (Salt Lake City, UT, US | Global | Station aggregation API, Mesonet access)
- WeatherFlow-Tempest: Tempest home weather stations plus a professional mesonet and modeling for wind-sensitive coasts. (Scotts Valley, CA, US | US | Tempest stations, Coastal mesonet, API)