Japan · 1991–2020 normal
Ōma in
September.
Typical September weather in Ōma: 23.2°C by day, 14.3°C at night, 160 mm of rain over 10.9 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high23.2°C
Typical low14.3°C
Rain160 mm
Wet days10.9
Comfort score 71 this month (June leads the year at 73). Daylight is calculated as 12 h 25 from latitude 41.53°. Open-water sea temperature is 22.1°C (11 km from the place centre).
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 22.1°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 2128693
- NOAA station
- JA000047430 · HAKODATE
- Station distance
- 34.9 km from the place centre
- Coverage
- Good coverage · 16 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.