Hachioji Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Hachioji.
Climate overview of Hachioji
Hachioji, Tokyo Prefecture, Japan, experiences significant temperature variation throughout the year. Summers bring daytime highs of 30°C (86°F) in August, while winters cool to 9°C (48°F) in January.
Rain/snowfall is high, totalling around 1955 mm (77 in) per year. September is the wettest month and December the driest. The city also experiences a distinct rainy season from June to October. January is the sunniest month, averaging 6.7 hours of sunshine per day.
Hachioji Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Hachioji — and find the best time to visit.
Monthly Temperature in Hachioji
Depending on the time of the year, temperatures range from comfortable to chilly in Hachioji. Average maximum daytime temperatures range from a comfortable 30°C (86°F) in August, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like January.
At night, you can expect temperatures ranging from 23°C (73°F) in August to around -1°C (30°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Hachioji
Hachioji has a relatively rain/snowy climate with high precipitation levels, averaging 1955 mm (77 in) of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, September it receives heavy rainfall, averaging 255 mm (10 in) of precipitation, recorded across 19 rainy days. In contrast, the driest month December brings less rainfall, with 73 mm (2.9 in) over 7 rainy days. For more details, please visit our Hachioji Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Hachioji
While the amount of sunshine in Hachioji varies throughout the year, all seasons offer their own charm. Enjoy up to 6.7 hours of daily sun in January, and experience slightly darker atmosphere in June, with about 4.2 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Hachioji
Rainfall during this time ranges from 106 mm (4.2 in) in November to 154 mm (6.1 in) in April. This means you can expect a mix of sunny days and occasional showers.
The rainy season falls during May, June, July, August, September and October, bringing heavy precipitation. Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Hachioji
What is the best time to visit Hachioji?
May typically offers the most optimal weather in Hachioji. In contrast, January, February, March and August tend to have less optimal conditions. Hachioji has a distinct rainy season from June to October.
What temperatures can I expect in Hachioji?
Daytime highs range from 9°C (48°F) in January to 30°C (86°F) in August. Nighttime lows range from -1°C (30°F) to 23°C (73°F). Temperatures vary considerably through the year.
How much rain does Hachioji get?
Annual rainfall is around 1955 mm (77 in). September is the wettest month with 255 mm (10 in), while December is the driest with 73 mm (2.9 in).
How sunny is Hachioji?
Hachioji receives around 2,031 hours of sunshine per year. January is the sunniest month with 202 hours, while June is the cloudiest with just 127 hours. Overall, Hachioji enjoys abundant sunshine.
Hachioji 3-Day Forecast
Hachioji 3-Day Forecast
Hachioji on the map
Hachioji is highlighted — select any city to see its climate.
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