Japan · 1991–2020 normal
Koshima in
January.
Typical January weather in Koshima: 14.6°C by day, 8.3°C at night, 341 mm of rain over 17.3 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high14.6°C
Typical low8.3°C
Rain341 mm
Wet days17.3
Comfort score 5 this month (April leads the year at 37). Daylight is calculated as 10 h 23 from latitude 30.23°. Open-water sea temperature is 21.0°C (15 km from the place centre).
Event window
Warm sea in January
The nearest open-water NOAA OISST 1991–2020 cell averages 21.0°C in January. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 1858711
- NOAA station
- JA000047836 · YAKUSHIMA
- Station distance
- 20.8 km from the place centre
- Coverage
- Good coverage · 20 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.