Dev tools · alternatives · 2026

24 alternatives to Ouranos API

Weather service and API specialized in astronomy

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Ouranos API launched in 2023; newer entries below may have overtaken it.

1. 1
   Weather Machine▲115

   Magical modern weather APIs for humans

   2023 · its alternatives →

2. 2WA
   Weather API for non-commercial use▲443

   2021 · open-meteo.com · its alternatives →

3. 3
   Tinyclouds▲217

   An adorable new weather app for iPhone and iPad

   2018 · its alternatives →

4. 4
   Rainbow Weather▲479

   AI forecast, today's weather, and a hurricane tracker

   2024 · its alternatives →

5. 5
   Sun▲120

   Beautiful weather forecast powered by Dark Sky

   2016 · its alternatives →

6. 6AA
   Astro App▲291

   I really like Stellarium and SkySafari but I felt like these are primarily geared towards exploring the sky but not so much "here are the long list of things I want to see, when can I see them tonight and where". There's also not really a great option I've found that combines sky object planning + location weather details while still being free so I built this. The UI's heavily inspired by NINAs sky atlas + Robinhood. Right now you can: View the altitude chart of objects and 3D view Create lists of objects of interest View the annual max/min daily altitude of an object to find the best…

   2024 · astro.sshh.io · its alternatives →

7. 7
   Sunshine▲152

   A simpler, personal, more accurate mobile weather experience

   2015 · its alternatives →

8. 8AD
   API Docs for NASA's Astronomy Picture of the Day API▲18

   2022 · nasa-apod.portaldocs.dev · its alternatives →

9. 9
   Dark Sky for Web▲262

   Hyperlocal weather information, now on the web ⛈

   2016 · its alternatives →

10. 10
    Weather Wiz▲95

    Beautiful weather app for Android

    2017 · its alternatives →

11. 11
    Daylight▲149

    Simple app that tells you when the days are getting longer.

    2017 · its alternatives →

12. 12
    Horizon▲87

    Sunset prediction webapp

    2023 · its alternatives →

13. 13
    Emoji Weather▲82

    A new weather service powered by emojis.

    2014 · its alternatives →

14. 14
    Troposphere▲69

    Weather forecasts at a glance

    2019 · its alternatives →

15. 15
    Astropocket ▲72

    Tons of astronomy services, one app.

    2022 · its alternatives →

16. 16
    Dark Sky 5▲269

    Weather app that predicts if it will rain or snow (and more)

    2015 · its alternatives →

17. 17
    Helio▲143

    Never miss the best sunsets

    2020 · its alternatives →

18. 18
    Live Sun and Moon Dashboard with NASA Footage▲224

    Live NASA solar imagery in 12 wavelengths, the moon phase tonight for 200+ cities, and real space weather. Free on iOS and Android. No ads, no signup.

    Apr 2026 · lumara-space.app · its alternatives →

19. 19ID
    IoT device to warn you of a supernova hours before Earth is destroyed▲145

    2022 · exaluminal.com · its alternatives →

20. 20
    Ouranos▲8

    Weather Forecast & Light Pollution Maps for Astronomers

    2024 · its alternatives →

21. 21
    Weatherly▲63

    Bringing you the best of weather. Wherever, whenever.

    2022 · its alternatives →

22. 22
    StatusSight▲164

    Real-time outage alerts for the services you rely on

    2024 · its alternatives →

23. 23
    CARROT Weather▲138

    Redesigned to deliver crazy-powerful and snarky forecasts

    2017 · its alternatives →

24. 24
    Bosun▲108

    Open-source monitoring and alerting system by Stack Exchange

    2014 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →