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Seiyo
Recommended travel destinations near Seiyo
Seiyo Weather, Climate and Best Time to Visit
Data source：Meteostat
Update date：2025-09
Seiyo year round climate
- Spring (March–May): 11.4–19.4°C on average, mild and rainy, occasional overcast and rainy weather. Common activities: Spring outings, flower viewing (depending on blooming conditions). Recommended clothing: Light jacket, long-sleeved shirts and pants.
- Summer (June–August): 22.9–28.2°C on average, hot and humid, relatively high rainfall. Common activities: Summer resorts, stream activities, mountain trail hiking (note sun protection and rain gear). Recommended clothing: Breathable and sweat-wicking clothing, rain gear.
- Autumn (September–November): 19.9–26.3°C on average, comfortable and pleasant climate, rainfall gradually decreasing. Common activities: Maple leaf viewing (depending on leaf color change), outdoor activities. Recommended clothing: Light jacket, long-sleeved shirts and pants.
- Winter (December–February): 6.3–8.2°C on average, cold and dry climate, low rainfall. Common activities: Hot spring bathing, indoor activities. Recommended clothing: Warm jacket, sweater, scarf and gloves.
Seiyo climatological average
Annual average temperature: approx. 17.4°C / Annual rainfall: approx. 2639 mm / Summer humidity: 75%–85% / Rainiest month: June
Seiyo monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
6.3°C
52.1
February
7.6°C
105.8
March
11.4°C
191.6
April
16.5°C
244.9
May
19.4°C
300.6
June
22.9°C
397.3
July
27.6°C
280.1
August
28.2°C
276.6
September
26.3°C
349.2
October
19.9°C
217.7
November
15°C
166.7
December
8.2°C
56.9
Seiyo weather for the next seven days
2/2
Monday
Sunny
9°C/-0.6°C
2/3
Tuesday
Sunny
10.3°C/-1.3°C
2/4
Wednesday
Partly Cloudy
11.7°C/-0.3°C
2/5
Thursday
Sunny
13.7°C/2.4°C
2/6
Friday
Sunny
13.4°C/5.4°C
2/7
Saturday
Sunny
8.1°C/1.6°C
2/8
Sunday
Patchy light snow
3.7°C/-3.1°C
