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Hachioji

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Hachioji Weather and climate

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
10/22
Wednesday
Moderate rain
11.7°C/10.2°C
10/23
Thursday
Partly Cloudy
14.8°C/10.6°C
10/24
Friday
Partly Cloudy
17.9°C/10.9°C
10/25
Saturday
Moderate rain
15°C/11.9°C
10/26
Sunday
Heavy rain
15.6°C/13.2°C
10/27
Monday
Patchy rain nearby
19.2°C/14.4°C
10/28
Tuesday
Partly Cloudy
16°C/12.3°C

Hachioji FAQ

What does the name Hachioji mean?
The name Hachioji, written as 八王子 in Japanese, translates to 'Eight Princes'. This name originates from the local Hachioji-jinja shrine, where a monk is said to have enshrined Gozutenno along with eight other princes, referring to them as 'Hachioji Gongen'. This shrine is considered the historical root of the city's name.
What is Hachioji known for?
Hachioji is a vibrant city known for its historical significance, natural beauty, and diverse attractions. It's home to Mount Takao, a popular destination for hiking and enjoying nature. The city also boasts historical sites and offers a glimpse into traditional Japanese culture, making it a compelling destination for independent travel.
What is the population of Hachioji, Tokyo?
Hachioji is a significant urban center with a population of approximately 580,000 residents.
Where is Hachioji located?
Hachioji is a city located to the west of the central 23 wards of Tokyo, Japan.
What are some natural attractions in Hachioji?
One of the most prominent natural attractions in Hachioji is Mount Takao, a beautiful mountain offering scenic hiking trails and stunning views. The area around Mount Takao provides an excellent opportunity to experience nature's tranquility close to the city.