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Rishiri Island

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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 -0.2–8.7°C, cold and dry climate, occasional snowfall. Common activities: Sightseeing, hiking (dress warmly). Recommended clothing: Thick coat, hat, scarf, gloves.
  • Summer (June–August): Average 13.4–20.0°C, cool climate, less rainfall. Common activities: Mountain climbing, viewing Rishiri Fuji, seaside recreation. Recommended clothing: Light jacket, long-sleeved clothing.
  • Autumn (September–November): Average 18.4–5.5°C, comfortable climate, low rainfall. Common activities: Viewing autumn leaves, seaside walks. Recommended clothing: Light jacket, long-sleeved shirt.
  • Winter (December–February): Average -2.8–-2.2°C, 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. 8.1°C / Annual rainfall: approx. 49 mm / Summer humidity: 60%–70% / Rainiest month: August

Rishiri Island monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-2.3°C
6.8
February
-2.8°C
2.4
March
-0.2°C
2.2
April
6.1°C
1.2
May
8.7°C
4.8
June
13.4°C
4.3
July
18.3°C
5.4
August
20°C
7.5
September
18.4°C
2.8
October
13.3°C
4
November
5.5°C
4.8
December
-2.2°C
3.7

Rishiri Island weather for the next seven days

4/26
Sunday
Partly Cloudy
8.6°C/6.7°C
4/27
Monday
Patchy rain nearby
6.3°C/3.4°C
4/28
Tuesday
Patchy rain nearby
4.9°C/3°C
4/29
Wednesday
Patchy rain nearby
3.5°C/2.4°C
4/30
Thursday
Partly Cloudy
5°C/2.5°C
5/1
Friday
Cloudy
9.4°C/6.1°C
5/2
Saturday
Patchy rain nearby
8.8°C/8.1°C