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Rishiri Island
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
10/13
Tuesday
Overcast
17.1°C/15.2°C
10/14
Wednesday
Patchy rain nearby
18.4°C/11.5°C
10/15
Thursday
Patchy rain nearby
11.3°C/9.8°C
10/16
Friday
Sunny
12.5°C/10.7°C
10/17
Saturday
Sunny
11.8°C/10.4°C
10/18
Sunday
Overcast
12.7°C/10.2°C
10/19
Monday
Overcast
15.3°C/12°C
