Overview
Storm Glass provides detailed marine and weather forecasts combining data from multiple global meteorological sources such as NOAA, SMHI, and the Norwegian Meteorological Institute. It is designed for marine applications including sailing, surfing, and fishing, offering wave height, wind, tide, and ocean current data. Beginners can query any coastal or ocean coordinate to get a multi-source weather forecast with hourly resolution.
Beginner Tip
Sign up at stormglass.io for a free tier with 10 requests per day. Each request returns up to 48 hours of hourly forecast data, so plan your queries carefully to stay within the free limit.
Available Data
Example Response
{
"location": "Tokyo",
"temperature": {
"current": 22,
"feels_like": 24,
"min": 18,
"max": 26
},
"condition": "Partly Cloudy",
"humidity": 65,
"wind": {
"speed": 12,
"direction": "NE"
},
"forecast": [
{
"date": "2025-01-16",
"high": 25,
"low": 17,
"condition": "Sunny"
}
]
} Field Reference
hours Array of hourly forecast objects, each containing multiple weather parameter values from different sources hours[].time ISO 8601 timestamp for each hourly data point hours[].waveHeight Array of wave height values in meters from multiple data sources hours[].windSpeed Array of wind speed values in meters per second from multiple sources hours[].airTemperature Air temperature values in Celsius from multiple meteorological sources meta.requestCount Number of API requests used so far today against your daily quota Implementation Example
const url = "https://stormglass.io/";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
headers: {
"X-API-Key": "YOUR_API_KEY"
}
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Matrix Score Breakdown
Partially tested on Apr 5, 2026
Technical Specifications
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