Japan · 1991–2020 normal

Seirō in
October.

Typical October weather in Seirō: 20.6°C by day, 12.6°C at night, 186 mm of rain over 14.3 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high20.6°C
Typical low12.6°C
Rain186 mm
Wet days14.3

Comfort score 53 this month (June leads the year at 76). Daylight is calculated as 11 h 09 from latitude 37.98°. Open-water sea temperature is 21.5°C (19 km from the place centre).

Event window

Warm sea in October

The nearest open-water NOAA OISST 1991–2020 cell averages 21.5°C in October. 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 1898046
NOAA station
JA000047604 · NIIGATA
Station distance
19.4 km from the place centre
Coverage
Good coverage · 17 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.