1km Mesh 5-Minute Weather Forecast
GET
/api/v1/ss1wx/kakuho
Get detailed weather forecasts with 5-minute intervals for specified latitude and longitude coordinates, calculated with 1km grid resolution.
The API provides 5-minute interval weather icons and 10-minute interval precipitation amounts for the next 3 hours. The weather icon for the next hour is represented by a single weather code.
For definitions of weather codes and icons, refer to Weather Codes (5-Minute Weather).
For wind direction definitions, refer to Wind Direction Definitions.
Parameters
Query Parameters
lat*
Latitude
Typenumber
RequiredExample
35.651377format
floatlon*
Longitude
Typenumber
RequiredExample
140.041161format
floatResponses
1km grid-based weather forecast data
application/json
JSON
{
"requestId": "3909775c-5d0f-4e96-8e4f-7d3f263e2056",
"wxdata": [
{
"lat": 35.651377,
"lon": 140.041161,
"data": [
{
"date": "2025-04-09T00:00:00+09:00",
"prec": 0,
"wx": 100
}
]
}
]
}