Japan · 1991–2020 normal
Koshi in
September.
Typical September weather in Koshi: 27.1°C by day, 18.8°C at night, 250 mm of rain over 13.4 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high27.1°C
Typical low18.8°C
Rain250 mm
Wet days13.4
Comfort score 44 this month (May leads the year at 73). Daylight is calculated as 12 h 22 from latitude 36.91°. Open-water sea temperature is 25.4°C (18 km from the place centre).
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 25.4°C in September. 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 8672343
- NOAA station
- JA000047607 · TOYAMA
- Station distance
- 39.2 km from the place centre
- Coverage
- Good coverage · 18 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.