Best year time to visit Seiyo

General weather information about Seiyo

Average annual temperature is 15.9 °C

Absolute maximum temperature: 34.5 °C

Absolute minimum temperature: -5 °C

Number of sunny days: 133

Number of rainy days: 228

Number of snow days: 4

Average annual precipitation: 1600 mm

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* Weather data for Seiyo Japan is based on climate observations for 2023 year

Seiyo air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 19.7 17.2 23.8 25.8 29.6 31.8 34.5 34.4 33.5 27.7 25.4 22.3
Average daytime temperature (°C) 9.3 11.4 17.3 19.7 23.5 26 30.8 30.6 30.1 22.7 17.7 11.9
Average temperature (°C) 4.9 5.9 11.1 14.2 18.2 21.6 26.2 26.4 24.9 16.5 12.3 7.1
Average night temperature (°C) 1.3 1.1 6.2 9.2 13.6 17.8 22.4 23.4 21.1 11.7 8.3 3.3
Absolute minimum temperature (°C) -5 -4 -2.7 3.2 6.7 12.4 18.2 21.1 15.9 5.2 1.7 -2.7

Seiyo monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 10.6 11.4 12.5 13.5 14.2 14.4 14.3 13.8 12.9 11.9 10.8 10.1
Daylight mean duration (h) 10.2 11 12 13 13.9 14.3 14.1 13.4 12.4 11.4 10.5 10
Daylight minimum duration (h) 10 10.6 11.5 12.5 13.5 14.2 13.8 12.9 11.9 10.9 10.1 9.9
Sunshine mean duration (h) 6.7 7.2 8.6 8.7 9 6.3 10.1 9.7 9.7 8.8 7.8 6.8
Precipitation (mm) 77 63 104 214 222 346 122 193 68 22 72 98
Sunny days 13 14 18 15 15 10 4 4 20 12 8
Rainy days 17 14 13 15 16 20 27 31 26 11 18 20
Snow days 1 3

Seiyo - weather forecast by months

January February March April May June July August September October November December

Best time to visit Seiyo:

The largest precipitation sum in Seiyo is at

  • April — 214(mm)
  • May — 222(mm)
  • June — 346(mm)
  • August — 193(mm)

Weather forecast in the closest to Seiyo admin centers