I've recently been looking for Weather APIs that could provide global UV Index Forecast to integrate some sun safety data into my Android/iOS/Fitbit app (sunscreen recommendation time). That's the list I've come up with so far:

  • Forecast.io - returns current, minutely, hourly UV Index plus max UV Index for daily forecast data. 1000 req/daily free.

  • OpenWeatherAPI - it seems returns just max UV Index for the location. Free plan is available.

  • WeatherBit - returns current, hourly UV Index from 0 to 11+. UV Index is factored in the Earth's tilt, upper atmosphere aerosol concentration, sky opacity, and more. Free plan is available.

  • OpenUV - seems just appeared recently, claims to return real-time UV Index data and Forecast for any datetime. Factored by ozone from AURA satellite, sun-to-earth distance and elevation (optional). Free plan is there.

Any other good suggestions you could recommend?

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  • Did you find any other good ones? I need hourly UV forecast data (not just daily max) and am currently getting this from wunderground API... but sadly that is about to be shelved. – drmrbrewer Sep 25 '18 at 6:50
  • Check OpenUV.io, it has hourly forecast and free. – Alex Ershov Sep 26 '18 at 2:58
  • Looks like you are the creator of OpenUV? – drmrbrewer Sep 26 '18 at 12:24

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