Weather APIs

7Timer! is a specialized weather forecasting service designed specifically for astronomers and stargazers. It provides detailed predictions for astronomical viewing conditions, including cloud cover, seeing conditions, transparency, and other atmospheric parameters critical for observation planning. The service combines multiple weather models to deliver accurate forecasts for astronomical sites worldwide, making it an essential tool for both amateur astronomers and professional observatories. Users can access specialized forecasts for civil, astronomical, and marine purposes, with data updated multiple times daily to ensure accuracy.

AccuWeather is a leading global weather forecasting service providing minute-by-minute weather forecasts and reports for locations worldwide. The service offers comprehensive weather data including current conditions, hourly and daily forecasts, severe weather alerts, and lifestyle indices. Their MinuteCast® technology provides hyper-local precipitation forecasts with minute-by-minute accuracy for the next two hours. The API also includes features like RealFeel Temperature®, air quality data, and detailed weather news and insights, making it ideal for both consumer applications and enterprise solutions.

Aemet, Spain's State Meteorological Agency, provides comprehensive weather and climate data services for the Iberian Peninsula, Balearic and Canary Islands. The service offers detailed Spanish weather forecasts, climate data, and meteorological observations, including temperature, precipitation, wind, and atmospheric pressure. It features specialized forecasts for maritime conditions, mountain weather, and UV radiation levels. The API provides access to historical climate data, radar imagery, and satellite observations, making it particularly valuable for applications focused on Spanish and Mediterranean weather patterns.

APIXU is a comprehensive weather data service providing real-time and forecast weather information for locations worldwide. The service offers detailed weather data including temperature, precipitation, wind conditions, humidity, and atmospheric pressure. It features both current weather conditions and up to 7-day forecasts, along with historical weather data going back up to 30 years. The API is particularly notable for its extensive location database, supporting queries by city name, postal code, IP address, or coordinates, making it versatile for various weather-dependent applications and services.

AQICN provides comprehensive air quality monitoring data for over 1000 cities worldwide through its World Air Quality Index project. The service aggregates data from over 12,000 monitoring stations, offering real-time air quality measurements including PM2.5, PM10, Ozone, NO2, SO2, and CO levels. It features historical data analysis, pollution forecasting, and health recommendations based on current air quality conditions. The API also provides detailed information about pollution sources, weather conditions affecting air quality, and trends analysis, making it invaluable for environmental monitoring, health applications, and urban planning.

AviationWeather, provided by NOAA, is a specialized weather service tailored for the aviation industry. It delivers comprehensive aviation weather data including METARs, TAFs, PIREPs, and AIRMETs/SIGMETs. The service provides detailed information about cloud coverage, visibility, wind conditions, turbulence, and icing conditions crucial for flight planning and safety. The API includes access to weather radar data, satellite imagery, and aviation-specific weather charts, making it essential for pilots, flight dispatchers, and aviation applications.

ColorfulClouds (Caiyun Weather) is a sophisticated weather forecasting service that combines multiple weather models with machine learning technology. It provides minute-level precipitation forecasts, air quality data, and detailed weather conditions for locations across Asia and globally. The service features high-precision local weather forecasts, including temperature, precipitation probability, wind conditions, and visibility. It's particularly known for its accurate rainfall forecasting and beautiful visualization options, making it popular for both consumer apps and professional weather monitoring.

Euskalmet, the Basque Meteorology Agency, provides specialized weather services for the Basque Country region. The service offers highly detailed local weather forecasts, including temperature, precipitation, wind conditions, and marine weather for the Bay of Biscay. It features specific forecasts for mountain areas, coastal regions, and urban centers within the Basque Country. The API provides access to real-time weather data, radar imagery, and historical climate information, making it particularly valuable for applications focused on this unique geographical region.

Foreca is a professional weather service provider offering global weather forecasts with high accuracy and reliability. The service provides detailed weather data including hourly and daily forecasts, current conditions, and severe weather warnings. It features specialized forecasts for various industries including aviation, marine, and road maintenance. The API offers access to weather maps, radar imagery, and satellite data, along with historical weather information and climate statistics, making it suitable for both consumer applications and enterprise solutions.

GribStream is a specialized weather data service providing access to raw GRIB format weather data from major numerical weather prediction models including the NBM (National Blend of Models) and GFS (Global Forecast System). The service is designed for professional weather applications requiring direct access to model data, offering parameters such as temperature, precipitation, wind, pressure, and humidity at various atmospheric levels. It's particularly valuable for applications requiring bulk data processing, scientific analysis, or custom weather model implementations.

HG Weather is a specialized weather service focused on providing accurate weather forecasts for cities across Brazil. The service offers detailed local weather information including temperature, humidity, wind conditions, and precipitation forecasts. It features both current conditions and extended forecasts, with particular attention to tropical weather patterns and regional climate characteristics. The API provides comprehensive coverage of Brazilian cities and municipalities, making it especially valuable for applications serving the Brazilian market.

The Hong Kong Observatory provides comprehensive weather services for Hong Kong and the surrounding region. The service offers detailed weather forecasts, warnings, and climate information, including tropical cyclone tracking, rainfall distribution, and earthquake monitoring. It features specialized forecasts for aviation, marine activities, and public safety, along with historical climate data and scientific weather analysis. The API provides access to real-time weather data, radar imagery, and regional weather patterns specific to East Asia.

The Korea Meteorological Administration (KMA) provides comprehensive weather and climate services for South Korea. The service delivers detailed weather forecasts, climate data, and meteorological observations, including temperature, precipitation, wind conditions, and atmospheric pressure. It features specialized forecasts for various sectors including agriculture, aviation, and marine activities. The API offers access to weather radar data, satellite imagery, and earthquake information, with particular emphasis on Korean Peninsula weather patterns and climate trends.

The Met Office DataPoint service provides detailed weather data and forecasts for the United Kingdom. The service offers comprehensive coverage of UK weather conditions, including temperature, rainfall, wind, and pressure data at high spatial and temporal resolutions. It features specialized forecasts for different sectors including aviation, marine, and mountain weather. The API provides access to weather observations, climate data, and weather warnings, making it particularly valuable for applications focused on British and North Atlantic weather patterns.

Meteorologisk Institutt (MET Norway) provides comprehensive weather services for Norway and the Nordic region. The service offers detailed weather forecasts, observations, and climate data, with particular expertise in Arctic and maritime weather conditions. It features specialized forecasts for marine activities, aviation, and mountain weather, crucial for Nordic conditions. The API provides access to weather radar data, lightning detection, and advanced weather models, making it especially valuable for applications focused on Scandinavian and Arctic weather patterns.

Meteosource is an advanced weather forecasting service that utilizes machine learning and historical data analysis to provide accurate weather predictions. The service offers global coverage with detailed point forecasts, including temperature, precipitation, wind conditions, and atmospheric parameters. It features both short-term and extended forecasts, with particular strength in precipitation forecasting and severe weather prediction. The API provides access to historical weather data, climate analysis, and custom forecast models, making it suitable for both consumer applications and professional weather services.

ODWeather specializes in providing weather data and webcam imagery from locations worldwide. The service combines real-time weather observations with visual confirmation through an extensive network of weather webcams. It features detailed weather parameters including temperature, wind conditions, humidity, and precipitation, along with live visual feeds. The API provides access to both current weather data and webcam streams, making it particularly valuable for applications requiring visual weather verification alongside numerical data.

Oikolab provides an extensive historical weather database spanning over 70 years, combining data from NOAA and ECMWF sources. The service offers high-resolution historical weather data and forecasts, including temperature, precipitation, wind, solar radiation, and other meteorological parameters. It features sophisticated data analysis tools and climate trend assessments, with hourly resolution for both historical and forecast data. The API is particularly valuable for climate research, energy sector applications, and long-term weather pattern analysis.

Open-Meteo is a free, open-source weather API designed for non-commercial use, providing global weather forecast data. The service offers high-quality weather predictions including temperature, precipitation, wind speed, and solar radiation data. It features both short-term and medium-range forecasts, leveraging multiple weather models for improved accuracy. The API provides easy access to weather data with high temporal resolution, making it particularly suitable for educational projects, personal weather applications, and research purposes.

openSenseMap is a citizen science project that collects and provides weather data from a network of personal weather stations called senseBoxes. The service aggregates data from thousands of citizen-operated weather stations worldwide, offering hyperlocal weather information including temperature, humidity, air pressure, and air quality measurements. It features real-time data access and historical measurements from each station, with particular strength in urban microclimate monitoring. The API provides access to both individual station data and aggregated measurements, making it valuable for community-driven weather monitoring and environmental research.

OpenUV specializes in providing detailed ultraviolet (UV) radiation forecasts and real-time UV index data worldwide. The service offers comprehensive UV exposure information, including UV index forecasts, safe exposure times based on skin type, and vitamin D production estimates. It features both current UV conditions and hourly forecasts, along with ozone layer thickness data and UV protection recommendations. The API is particularly valuable for health and wellness applications, outdoor activity planning, and public health initiatives focused on sun safety.

OpenWeatherMap is a widely-used weather service providing comprehensive weather data for locations worldwide. The service offers detailed weather forecasts, current conditions, and historical data, along with specialized features like air pollution data, weather maps, and alerts. It provides both free and premium access levels, making it suitable for projects of various scales.

QWeather provides location-based weather services with particular strength in Asian markets. The service offers detailed weather forecasts, real-time weather conditions, and severe weather warnings for locations worldwide. It features minute-level precipitation forecasts, air quality data, and astronomical information including sun and moon phases. The API provides comprehensive weather parameters, historical weather data, and weather indices for various activities, making it especially valuable for applications serving Asian markets and requiring localized weather information.

RainViewer specializes in providing high-quality precipitation radar data and forecasts collected from multiple sources worldwide. The service offers real-time rain radar imagery, precipitation forecasts, and historical radar data playback. It features detailed precipitation intensity information, storm tracking, and lightning detection data. The API provides access to radar animations, precipitation forecasts, and severe weather alerts, making it particularly valuable for applications focused on precipitation monitoring and storm tracking.

Storm Glass is a specialized marine weather service that aggregates data from multiple global weather sources. The service provides comprehensive marine weather forecasts including wave height, swell direction, water temperature, and wind conditions. It features detailed point forecasts for any marine location, with particular focus on parameters relevant to maritime activities. The API combines data from various weather models to provide reliable marine weather forecasts, making it essential for marine navigation, water sports, and coastal applications.

Tomorrow.io (formerly ClimaCell) offers advanced weather intelligence powered by proprietary technology and machine learning. The service provides hyperlocal weather forecasts, real-time weather data, and insights for business operations. It features minute-by-minute precipitation forecasts, air quality predictions, and severe weather alerts. The API includes unique parameters such as road risk indices, outdoor event scores, and health metrics, making it particularly valuable for business applications requiring actionable weather intelligence.

The US National Weather Service provides comprehensive weather data and forecasts for the United States and its territories. The service offers detailed weather forecasts, observations, and warnings, including severe weather alerts, hurricane tracking, and climate data. It features specialized forecasts for aviation, marine, and fire weather, along with radar and satellite imagery. The API provides access to official US government weather data and forecasts, making it particularly valuable for applications requiring authoritative weather information for the United States.

Visual Crossing provides comprehensive historical weather data and forecasts globally. The service offers detailed weather information including temperature, precipitation, wind, humidity, and solar radiation data. It features both historical weather analysis and future forecasts, with particular strength in data visualization and analysis tools. The API provides access to weather data at various temporal resolutions, from hourly to yearly, making it valuable for applications requiring both historical analysis and forecast capabilities.

Weather-api is a RESTful free weather service providing basic weather information for locations worldwide. The service offers current weather conditions and basic forecasts in a simple, easy-to-use format. It features core weather parameters including temperature, humidity, wind conditions, and general weather state. The API is designed for simplicity and ease of integration, making it particularly suitable for basic weather applications and learning projects requiring straightforward weather data access.

WeatherAPI provides comprehensive weather data services including current weather, forecasts, and historical weather information. The service offers detailed weather parameters along with unique features such as astronomy data, sports weather, and IP lookup capabilities. It features real-time weather alerts, air quality data, and marine weather forecasts. The API provides access to weather data in multiple formats with extensive global coverage, making it suitable for a wide range of applications from simple weather apps to complex weather-dependent systems.

Weatherbit provides detailed weather forecasts and historical weather data with global coverage. The service offers comprehensive weather information including current conditions, hourly and daily forecasts, and severe weather alerts. It features specialized data sets for agriculture, energy, and air quality monitoring. The API provides access to various weather parameters and indices, along with satellite imagery and weather maps, making it valuable for both consumer applications and industry-specific solutions.

Yandex.Weather provides detailed weather forecasts and current conditions with particular focus on Russian and CIS regions. The service offers comprehensive weather data including temperature, precipitation, wind conditions, and atmospheric pressure. It features hyperlocal weather forecasts, precipitation radar, and severe weather warnings. The API provides access to both current conditions and forecasts, with strong coverage in Eastern European and Asian regions, making it especially valuable for applications serving these markets.