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AviationWeather vs Storm Glass Marine Weather

Same instrument, two spec sheets — measured, not claimed.

APIAviationWeatherNEW—Storm Glass Marine WeatherNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licensePublic domain (U.S. Government / NOAA)Unverified
Free tierFree, no keyFree tier — API key required
Rate limitUnpublished (NWS requests reasonable use)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

AviationWeather vs Storm Glass Marine Weather: common questions

Which is more reliable, AviationWeather or Storm Glass Marine Weather?

On our scheduled checks, Storm Glass Marine Weather leads on measured uptime — AviationWeather at —% versus Storm Glass Marine Weather at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do AviationWeather and Storm Glass Marine Weather need an API key?

AviationWeather needs no key, while Storm Glass Marine Weather requires a free API key. If you want to start calling without signup, reach for AviationWeather first.

Can I call AviationWeather and Storm Glass Marine Weather from the browser?

Only Storm Glass Marine Weather 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 Storm Glass Marine Weather free for commercial use?

AviationWeather allows commercial use on its free tier, and Storm Glass Marine Weather has unclear commercial terms. 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.