Spring (March–May): Average 0.4–12.7°C, cold and rainy climate, slow temperature increase, occasional cold winds. Common activities: Flower viewing (some cold-resistant plants), outdoor walks (dress warmly). Recommended clothing: Warm jacket, sweater, waterproof pants.
Summer (June–August): Average 17.1–23.8°C, warm and humid climate, heavy rainfall, especially in August. Common activities: Beach activities, camping, mountain climbing (be prepared for rain). Recommended clothing: Light and breathable clothing, rain gear.
Autumn (September–November): Average 11.9–19.4°C, cool climate, still relatively high rainfall, gradually decreasing temperatures. Common activities: Maple leaf viewing (in some areas), outdoor leisure activities. Recommended clothing: Light jacket, long-sleeved shirt, comfortable pants.
Winter (December–February): Average -5.2–-2.9°C, cold and dry climate, low temperatures, relatively low snowfall. Common activities: Skiing (requires going to mountainous areas), indoor activities. Recommended clothing: Heavy warm jacket, hat, scarf, gloves.
Ishikari climatological average
Annual average temperature: approx. 9°C / Annual rainfall: approx. 1160 mm / Summer humidity: 70%–80% / Rainiest month: August
Ishikari monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
-5.2°C
84.5
February
-4.3°C
63
March
0.4°C
67.1
April
7.9°C
66.1
May
12.7°C
75.1
June
17.1°C
122.9
July
22°C
107.9
August
23.8°C
164.2
September
19.4°C
112.1
October
11.9°C
127
November
5.3°C
106
December
-2.9°C
64.1
Ishikari weather for the next seven days
2/16
Monday
Moderate or heavy snow showers
-0.4°C/-4.6°C
2/17
Tuesday
Light freezing rain
0.5°C/-8.2°C
2/18
Wednesday
Blowing snow
2.5°C/-5.4°C
2/19
Thursday
Blowing snow
-3.9°C/-5.1°C
2/20
Friday
Heavy snow
1.8°C/-3.6°C
2/21
Saturday
Fog
3°C/-4.4°C
2/22
Sunday
Cloudy
4°C/-0.4°C
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