Japan · 1991–2020 normal
Ōyama in
September.
Typical September weather in Ōyama: 27.4°C by day, 21.5°C at night, 226 mm of rain over 11.5 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high27.4°C
Typical low21.5°C
Rain226 mm
Wet days11.5
Comfort score 43 this month (May leads the year at 62). Daylight is calculated as 12 h 21 from latitude 34.60°. Open-water sea temperature is 25.7°C (9 km from the place centre).
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 25.7°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 1853486
- NOAA station
- JA000047655 · OMAEZAKI
- Station distance
- 0.4 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.