open-meteo

Get current air quality data for any location on Earth, including PM2.5, PM10, ozone (O3), nitrogen dioxide (NO2), and an overall Air Quality Index (AQI) score. Requires latitude and longitude coordinates. Essential for health-conscious apps, outdoor exercise planners, allergy trackers, and environmental monitoring dashboards. Data from Open-Meteo air quality models.

Get a 3-day hourly air quality forecast for any location, including predicted PM2.5, PM10, ozone, and AQI levels. Useful for planning outdoor activities, warning vulnerable populations about upcoming poor air quality days, and building proactive health notification systems. Data from Open-Meteo forecast models.

Convert place names, addresses, or location descriptions into geographic coordinates (latitude and longitude). Returns matching locations with their names, countries, coordinates, elevation, population, and timezone. Supports fuzzy matching and returns multiple results ranked by relevance. Data from Open-Meteo geocoding powered by the GeoNames database. Essential for any app that needs to convert user-typed locations into coordinates for use with weather, map, or other location-based APIs.

Get current ocean conditions for any coastal or open-water location, including wave height, wave direction, wave period, and swell data. Requires latitude and longitude coordinates. Essential for marine navigation apps, surfing and water sports planners, fishing trip tools, offshore operations dashboards, and coastal safety systems. Data from Open-Meteo marine models.

Get a multi-day marine weather forecast with hourly wave height, wave direction, wave period, and swell predictions. Configurable up to 7 days ahead. Useful for planning sailing routes, scheduling offshore work, timing surf sessions, and building marine safety alerting systems. Data from Open-Meteo marine forecast models.

Get current weather conditions for any location, including temperature, humidity, feels-like temperature, precipitation, wind speed and direction, and weather description code. Supports lookup by latitude/longitude coordinates or by city name (30 major cities supported). Data updated every 15 minutes from Open-Meteo, powered by national weather services. Ideal for weather widgets, outdoor activity planners, and location-based apps.

Get a multi-day weather forecast for up to 16 days, with daily high/low temperatures, precipitation probability, wind speed, and weather codes. Supports coordinates or city name lookup. Useful for travel planning apps, event scheduling tools, agriculture dashboards, and any feature that helps users plan around future weather conditions. Data from Open-Meteo forecast models.