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Shiroko River

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Shiroko River Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Shiroko River year round climate

  • Spring (March–May): Average 0.9–10°C, cold and humid climate, occasional snowfall, but increasing sunshine hours. Common activities: Birdwatching, walking in Kushiro Marsh (dress warmly). Recommended clothing: Thick jacket, thermal underwear, waterproof pants and shoes.
  • Summer (June–August): Average 14.4–20.8°C, warm and humid climate, more rainfall, especially in August. Common activities: Boating on the Kushiro River, sightseeing around Lake Akan, flower viewing. Recommended clothing: Light and breathable clothing, rain gear, insect repellent.
  • Autumn (September–November): Average 12.5–18.4°C, cool and pleasant climate, gradually decreasing rainfall, beautiful scenery. Common activities: Maple viewing, watching migratory birds, experiencing local culture. Recommended clothing: Light jacket, comfortable long pants, thermal underwear.
  • Winter (December–February): Average -4.7–-2°C, cold and dry climate, more snowfall. Common activities: Skiing, ice fishing, enjoying snow scenery. Recommended clothing: Heavy down jacket, warm hat, gloves, scarf, waterproof snow boots.

Shiroko River climatological average

Annual average temperature: approx. 8°C / Annual rainfall: approx. 1059 mm / Summer humidity: 70%–80% / Rainiest month: August

Shiroko River monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-4.7°C
27
February
-4.5°C
19
March
0.9°C
76.7
April
6.5°C
88.7
May
10°C
73
June
14.4°C
98.3
July
19.7°C
144.3
August
20.8°C
206
September
18.4°C
125.3
October
12.5°C
110.7
November
6.5°C
55.3
December
-2°C
35

Shiroko River weather for the next seven days

4/22
Wednesday
Patchy rain nearby
9.4°C/3.5°C
4/23
Thursday
Patchy rain nearby
8.3°C/2.8°C
4/24
Friday
Partly Cloudy
7°C/0.7°C
4/25
Saturday
Sunny
5.7°C/0°C
4/26
Sunday
Sunny
9.4°C/3.7°C
4/27
Monday
Partly Cloudy
11.7°C/5°C
4/28
Tuesday
Patchy rain nearby
5.8°C/3.5°C