AviationWeather vs Open-Meteo
Same instrument, two spec sheets — measured, not claimed.
AviationWeather vs Open-Meteo: common questions
Which is more reliable, AviationWeather or Open-Meteo?
On our scheduled checks, Open-Meteo leads on measured uptime — AviationWeather at 93.1% versus Open-Meteo at 95.1% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, AviationWeather or Open-Meteo?
AviationWeather has the lower median latency in our checks — AviationWeather responds in 450 ms versus Open-Meteo at 673 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do AviationWeather and Open-Meteo need an API key?
Neither needs a paid key — AviationWeather is callable with no signup, and Open-Meteo is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call AviationWeather and Open-Meteo from the browser?
Only Open-Meteo is browser-friendly — it returns CORS headers over HTTPS. AviationWeather needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are AviationWeather and Open-Meteo free for commercial use?
AviationWeather allows commercial use on its free tier, and Open-Meteo is personal/non-commercial only. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.