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Karuizawa

Karuizawa 1
Travel Info
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Travel Info

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Karuizawa Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Karuizawa year round climate

  • Spring (March–May): Average 37–54°F, mild and comfortable climate, but with a large temperature difference between morning and evening, occasional showers. Cherry blossoms bloom in some areas in March and April. Common activities: Cherry blossom viewing, hiking, cycling. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 62–71°F, cool and comfortable climate, a summer resort, but with more rainfall in June and July. Common activities: Outdoor activities, camping, visiting Karuizawa attractions. Recommended clothing: Light and breathable clothing, rain gear.
  • Autumn (September–November): Average 51–66°F, pleasant climate, colorful autumn leaves are a major feature of autumn, rainfall gradually decreases. Common activities: Maple leaf viewing, hiking, hot springs. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Winter (December–February): Average -2.8–-32.4°F, cold climate, less snowfall. Common activities: Skiing (requires going to nearby areas), enjoying the quiet snow scenery. Recommended clothing: Warm coat, hat, scarf, gloves.

Karuizawa climatological average

Annual average temperature: approx. 48.7°F / Annual rainfall: approx. 1270 mm / Summer humidity: 70%–80% / Rainiest month: June

Karuizawa monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
27°F
10.7
February
28.4°F
47.2
March
37.2°F
91
April
48.6°F
116.5
May
54.3°F
158.8
June
62.6°F
197.6
July
71.1°F
174.5
August
71.2°F
131.8
September
66.9°F
154.3
October
52°F
103.2
November
42.6°F
70.6
December
31.6°F
14

Karuizawa weather for the next seven days

5/7
Thursday
Sunny
74.7°F/45.7°F
5/8
Friday
Patchy rain nearby
73.4°F/49.6°F
5/9
Saturday
Patchy rain nearby
57.8°F/38.7°F
5/10
Sunday
Sunny
64.2°F/34.8°F
5/11
Monday
Sunny
68.8°F/41.2°F
5/12
Tuesday
Patchy rain nearby
68.4°F/46.5°F
5/13
Wednesday
Patchy rain nearby
68.8°F/48.1°F