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Ishikari River

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Ishikari River Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Ishikari River year round climate

  • Spring (March–May): Average 0.4–13.4°C, with fluctuating temperatures and relatively even rainfall distribution. Common activities: flower viewing, hiking, boating (depending on snowmelt). Recommended clothing: warm jacket, sweater, waterproof jacket.
  • Summer (June–August): Average 18.0–23.2°C, warm and humid, with higher rainfall, especially in August. Common activities: camping, fishing, water sports. Recommended clothing: light and breathable clothing, rain gear.
  • Autumn (September–November): Average 10.5–18.1°C, cool and with relatively high rainfall. Common activities: maple leaf viewing, fruit picking. Recommended clothing: light jacket, long-sleeved clothing.
  • Winter (December–February): Average -7.2–-4.5°C, cold and dry, with high probability of snowfall. Common activities: skiing, ice activities. Recommended clothing: heavy warm clothing, waterproof and windproof jacket, snow boots.

Ishikari River climatological average

Annual average temperature: approx. 8.4°C / Annual rainfall: approx. 1198 mm / Summer humidity: 70%–80% / Rainiest month: August

Ishikari River monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-7.2°C
66.7
February
-5.8°C
47.3
March
0.4°C
51
April
8°C
49.3
May
13.4°C
70.3
June
18°C
121.7
July
22.8°C
142.7
August
23.2°C
186
September
18.1°C
120.7
October
10.5°C
120.7
November
4°C
115.3
December
-4.5°C
106.3

Ishikari River weather for the next seven days

11/28
Friday
Moderate rain
6.1°C/0.5°C
11/29
Saturday
Moderate or heavy snow showers
0.8°C/-3.4°C
11/30
Sunday
Moderate rain
6.3°C/-1.9°C
12/1
Monday
Moderate snow
1.5°C/-1.3°C
12/2
Tuesday
Heavy snow
1.3°C/-2.1°C
12/3
Wednesday
Moderate or heavy snow showers
-3.2°C/-6.8°C
12/4
Thursday
Moderate or heavy snow showers
-3°C/-7°C