Japan · 1991–2020 normal
Koshima in
May.
Typical May weather in Koshima: 24.7°C by day, 17°C at night, 505 mm of rain over 14.8 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high24.7°C
Typical low17°C
Rain505 mm
Wet days14.8
Comfort score 18 this month (April leads the year at 37). Daylight is calculated as 13 h 39 from latitude 30.23°. Open-water sea temperature is 23.8°C (15 km from the place centre).
Event window
Warm sea in May
The nearest open-water NOAA OISST 1991–2020 cell averages 23.8°C in May. 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 · 22 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.