OpenUV API alternatives

The missing minimalistic JSON real-time UV Index API for awesome Developers, Innovators and Smart Home Enthusiasts you've been looking for. If it doesn't fit your project, here are the 10 best free Weather APIs to use instead in 2026, out of 46 in the directory.

For reference, OpenUV API: HTTPS.

1. 1

   NASA POWER API

   Online · 228 ms

   Global solar and weather data for energy and agriculture.

   • No API key needed
   • Fast: 228 ms response
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
2. 2

   Veabird API

   Online · 587 ms

   Beach (sargassum, waves, hurricanes) and ski snow forecasts for 1,900+ resorts, no key.

   • No API key needed
   • Returns JSON at its URL
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
3. 3

   Open-Meteo API

   Online · 522 ms

   Global weather forecast API for non-commercial use.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
4. 4

   Open-Meteo Ensemble API

   Online · 523 ms

   Weather ensemble forecasts from multiple models.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
5. 5

   Pirate Weather API

   Online · 419 ms

   Free weather API with forecast data similar to Dark Sky.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
6. 6

   WeatherTotals API

   Online · 491 ms

   Measured US snow, rain, hail and aurora totals by state and city.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
7. 7

   wttr.in API

   Online · 454 ms

   Weather in your terminal, supports JSON output.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
8. 8

   Terrace Weather API

   Online · 782 ms

   Terrace open/closed verdict for restaurants, from the weather forecast.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
9. 9

   US Weather API

   Online · 927 ms

   US National Weather Service. A free weather API by weather.gov.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
10. 10

    FMI Open Data API

    Online · 1444 ms

    Finnish weather, sea, climate and radar observations via open WFS.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS

    No authHTTPSCORS

OpenUV API vs alternatives

OpenUV API compared with its alternatives

API	API key	HTTPS	CORS	Uptime	Response	Rating
OpenUV	Required	Yes	Unknown	Up	913 ms	Not rated
NASA POWER	No	Yes	Yes	Up	228 ms	Not rated
Veabird	No	Yes	Yes	Up	587 ms	Not rated
Open-Meteo	No	Yes	Yes	Up	522 ms	Not rated
Open-Meteo Ensemble	No	Yes	Yes	Up	523 ms	Not rated
Pirate Weather	No	Yes	Yes	Up	419 ms	Not rated
WeatherTotals	No	Yes	Yes	Up	491 ms	Not rated
wttr.in	No	Yes	Yes	Up	454 ms	Not rated
Terrace Weather	No	Yes	Yes	Up	782 ms	Not rated

See also: best Weather APIs · all Weather APIs