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Hachioji

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Hachioji Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Hachioji year round climate

  • Spring (March–May): 9–17°C on average, mild climate but with relatively high rainfall, especially in April. Common activities: Hiking, flower viewing (such as cherry blossoms and azaleas). Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
  • Summer (June–August): 21.5–27.5°C on average, hot and humid, with the most rainfall in June and less rainfall in July and August. Common activities: Outdoor swimming, mountain climbing (note: heatstroke prevention is important). Recommended clothing: Light and breathable clothing, hat, parasol.
  • Autumn (September–November): 12.1–24.8°C on average, comfortable and pleasant climate, with more rainfall in September. Common activities: Maple leaf viewing, hiking in the suburbs. Recommended clothing: Light jacket, long-sleeved shirt.
  • Winter (December–February): 3.3–6°C on average, cold and dry, with less rainfall. Common activities: Hot spring bathing, indoor activities. Recommended clothing: Thick jacket, sweater, scarf, gloves.

Hachioji climatological average

Annual average temperature: approx. 15°C / Annual rainfall: approx. 1617 mm / Summer humidity: 70%–80% / Rainiest month: June

Hachioji monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
3.3°C
33.3
February
4.6°C
67.8
March
9°C
149
April
14.4°C
164.3
May
17.3°C
183.3
June
21.5°C
270.1
July
26.6°C
139.3
August
27.5°C
140
September
24.8°C
214.6
October
17.1°C
121
November
12.1°C
87.9
December
6°C
46.9

Hachioji weather for the next seven days

12/9
Tuesday
Partly Cloudy
10.2°C/6.2°C
12/10
Wednesday
Sunny
12.5°C/4.9°C
12/11
Thursday
Partly Cloudy
13.1°C/6.3°C
12/12
Friday
Patchy rain nearby
8.4°C/2.5°C
12/13
Saturday
Partly Cloudy
7°C/2.1°C
12/14
Sunday
Patchy rain nearby
12.7°C/4.5°C
12/15
Monday
Partly Cloudy
11.7°C/6.8°C