Storm Glass

Overview

Storm Glass provides marine weather — waves, currents, and wind — for ocean coordinates. Auth is an API key.

Note (verified 2026-08): requests without the required parameters return HTTP 422 (parameter validation fires before auth) — pass at least one data parameter (airTemperature, waveHeight, etc.).

Quick Start

Weather point (replace YOUR_KEY):

curl "https://api.stormglass.io/v2/weather/point?lat=58.7984&lng=17.8081&params=airTemperature,waveHeight" \
  -H "Authorization: YOUR_KEY"

{
  "hours": [
    { "time": "2026-08-22T00:00:00+00:00", "airTemperature": { "noaa": 14.2 }, "waveHeight": { "noaa": 1.1 } }
  ],
  "meta": { "cost": 1 }
}

Authentication

• Register at stormglass.io → free API key.
• Send it as the Authorization header with the raw key.

Rate Limits & Notes

• Free tier: 10 requests/hour, 10,000/year (check the docs); paid plans scale.
• Data sources: NOAA, GFS, and more (each parameter carries a source tag).
• params= is required — omit it and you get 422 (verified).

FAQ

Is Storm Glass free? Free tier: 10 requests/hour; more is paid.

Why 422? Missing params returns 422 before auth (verified) — add parameters.

What data is available? Waves, currents, wind, and air/water temperature.