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Shiroishi Ward

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Shiroishi Ward Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Shiroishi Ward year round climate

  • Spring (March–May): Average 2.8–14.3°C, the climate transitions from cold to mild. Temperatures rise from March to May, but significant temperature differences remain. Common activities: Picnics, flower viewing (e.g., cherry blossoms, depending on blooming conditions). Recommended clothing: Warm jacket, sweater, long pants; light jacket when sunny.
  • Summer (June–August): Average 18.4–24.7°C, the climate is warm and humid with relatively high rainfall, particularly in August. Common activities: Hiking, stream activities, visiting summer resorts. Recommended clothing: Light and breathable clothing, rain gear.
  • Autumn (September–November): Average 13.2–20.4°C, the climate is comfortable and pleasant, but rainfall remains relatively high, and temperatures begin to drop. Common activities: Maple leaf viewing (depending on leaf conditions), hiking. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Winter (December–February): Average -3.1–-1.3°C, the climate is cold and dry with a higher probability of snowfall; pay attention to keeping warm. Common activities: Skiing, onsen experiences (depending on snow conditions). Recommended clothing: Heavy warm clothing, snow boots, hat, scarf, and gloves.

Shiroishi Ward climatological average

Annual average temperature: approx. 10.5°C / Annual rainfall: approx. 1083 mm / Summer humidity: 70%–80% / Rainiest month: August

Shiroishi Ward monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-3.1°C
132
February
-2.3°C
111
March
2.8°C
53
April
9.6°C
37
May
14.3°C
43
June
18.4°C
81
July
23.4°C
89.7
August
24.7°C
135.3
September
20.4°C
103
October
13.2°C
109.7
November
6.6°C
114.7
December
-1.3°C
73.7

Shiroishi Ward weather for the next seven days

12/22
Monday
Light snow showers
-0.7°C/-5.1°C
12/23
Tuesday
Sunny
0.5°C/-5.8°C
12/24
Wednesday
Patchy rain nearby
5.2°C/-2.4°C
12/25
Thursday
Patchy rain nearby
2.9°C/-3°C
12/26
Friday
Light snow showers
-2°C/-7.8°C
12/27
Saturday
Moderate or heavy snow showers
-4°C/-7.9°C
12/28
Sunday
Moderate or heavy snow showers
0.1°C/-7.3°C