KMA Weather API
Weather forecasts from the Korea Meteorological Administration KMA
KMA discontinued their UM-based models at the end of March 2026 and switched to the new
KIM-based model, which uses a different data distribution system. KMA data updates are currently
suspended while Open-Meteo migrates to the new KIM model source.
Data Sources
This API uses global KMA GDPS 10 km weather forecasts and combines them with high-resolution LDPS 1.5 km model for the North and South Korea. Information about KMA weather models is available here. For GDPS Global, values are interpolated from 3-hourly to 1-hourly time-steps.
| Weather Model | Region | Spatial Resolution | Temporal Resolution | Forecast Length | Update frequency |
|---|---|---|---|---|---|
| KMA GDPS | Global | 0.13° (~12 km) | 3-Hourly | 12 days | Every 6 hours |
| KMA LDPS | South And North Korea | 1.5 km | Hourly | 2 days | Every 6 hours |
API Documentation
For a detailed list of all available weather variables please refer to the general Weather Forecast API. Only notable remarks are listed below
- Direct Solar Radiation: KMA provides direct solar radiation. Many other weather models only provide global solar radiation and direct solar radiation must be calculated user separation models.
- Cloud Cover (2m): KMA provides cloud cover at 2 metre above ground which can be interpreted as fog. This is remarkable, because only very weather models are capable of modeling low level cloud cover and fog with a good degree of accuracy.
- Showers:Showers are only computed in the global GDPS model. Since LDPS is a convection-resolving model, it incorporates showers within the regular rain parameter, resulting in a constant value of 0 for the showers variable in LDPS.