1km Mesh High-Resolution Historical Weather Data
Historical Japan
Provides historical weather data for specified latitude and longitude coordinates, calculated with 1km grid resolution.
By specifying a date, you can retrieve historical data for that date. Historical data is available from 2018-01-01 onwards, with an observation frequency of 1 hour. The specified latitude and longitude must be within Japan.
Please note that there may be missing data due to various reasons such as maintenance or equipment failures. Missing values are represented as -99 or -9999. The data for the previous day is updated at 3 AM JST.
For definitions of weather codes and icons, refer to Weather Codes (Forecast).
For wind direction definitions, refer to Wind Direction Definitions.
Data Coverage
Land areas of Japan
パラメータ
クエリパラメータ
Latitude
35.651377floatLongitude
140.041161floatDate(JST)
2025-04-09date