Rishiri Island Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Rishiri Island year round climate
Spring (March–May): Average -32–47°F, cold and dry climate, occasional snowfall. Common activities: Sightseeing, hiking (dress warmly). Recommended clothing: Thick coat, hat, scarf, gloves.
Summer (June–August): Average 56–68°F, cool climate, less rainfall. Common activities: Mountain climbing, viewing Rishiri Fuji, seaside recreation. Recommended clothing: Light jacket, long-sleeved clothing.
Winter (December–February): Average -2.8–-36.0°F, cold and dry climate, little snowfall. Common activities: Skiing (depending on snow conditions), enjoying snow scenery. Recommended clothing: Heavy warm clothing, waterproof jacket, snow boots.
Rishiri Island climatological average
Annual average temperature: approx. 46.6°F / Annual rainfall: approx. 49 mm / Summer humidity: 60%–70% / Rainiest month: August
Rishiri Island monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
27.9°F
6.8
February
27°F
2.4
March
31.6°F
2.2
April
43°F
1.2
May
47.7°F
4.8
June
56.1°F
4.3
July
64.9°F
5.4
August
68°F
7.5
September
65.1°F
2.8
October
55.9°F
4
November
41.9°F
4.8
December
28°F
3.7
Rishiri Island weather for the next seven days
7/29
Wednesday
Overcast
66.8°F/64.4°F
7/30
Thursday
Light drizzle
67°F/62.8°F
7/31
Friday
Sunny
66.4°F/62.5°F
8/1
Saturday
Cloudy
67°F/62.9°F
8/2
Sunday
Light drizzle
66.9°F/65.3°F
8/3
Monday
Light drizzle
68°F/65.2°F
8/4
Tuesday
Cloudy
69.9°F/67.7°F
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