Tsumagoi Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Tsumagoi.

Climate overview of Tsumagoi

Temperatures in Tsumagoi, Gunma, Japan, vary greatly throughout the year. August is the hottest month at 28°C (82°F), while January is the coldest at 3°C (37°F).

The city receives considerable rain/snowfall, with around 1605 mm (63 in) annually. July is the wettest month. May is the sunniest month, averaging 7.0 hours of sunshine per day.

Tsumagoi Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Tsumagoi — and find the best time to visit.

Monthly Temperature in Tsumagoi

The climate in Tsumagoi is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 28°C (82°F) in August to a chilly 3°C (37°F) in the coolest month, January.

Nights vary from 19°C (66°F) in August to around -6°C (21°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Tsumagoi

Tsumagoi has a notably wet climate with abundant precipitation, recording 1605 mm (63 in) of rain/snowfall per year. The climate in Tsumagoi shows significant variation throughout the year. Expect heavy rainfall in July, the wettest month, with an average of 219 mm (8.6 in) of precipitation over 23 rainy days.

In contrast, the driest month November offers drier and sunnier days, with around 79 mm (3.1 in) of rainfall over 15 rainy days. For more details, please visit our Tsumagoi Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Tsumagoi

Tsumagoi offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between May (7.0 hours daily) and January (4.3 hours daily) provides a bit of variety for visitors and residents.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Nagano, Japan (31 KM, 19 Miles).

Daily hours of sunshine

Data from: Nagano, Japan (31 KM, 19 Miles).

Humidity in Tsumagoi by Month

Best Time to Visit Tsumagoi

Tsumagoi's weather is most enjoyable during May and October, with comfortable temperatures from 18°C (64°F) to 20°C (69°F). The moderate conditions ensure pleasant weather for exploring the area. Expect varied weather during this period with rainfall between 133 mm (5.2 in) and 150 mm (5.9 in), providing a good balance of sunny and rainy days.

The wettest months are June, July, August and September, when precipitation is at its highest.

Ready to plan your travels but need destination ideas? Our smart tool recommends places based on the climate conditions you prefer. Start planning with our destination weather tool.

Frequently asked questions about the climate in Tsumagoi

What is the best time to visit Tsumagoi?

May, August and September typically offer the most optimal weather in Tsumagoi. In contrast, January, February, March and December tend to have less optimal conditions.

What temperatures can I expect in Tsumagoi?

Daytime highs range from 3°C (37°F) in January to 28°C (82°F) in August. Nighttime lows range from -6°C (21°F) to 19°C (66°F). Temperatures vary considerably through the year.

How much rain does Tsumagoi get?

Annual rainfall is around 1605 mm (63 in). July is the wettest month with 219 mm (8.6 in), while November is the driest with 79 mm (3.1 in).

How sunny is Tsumagoi?

Tsumagoi receives around 1,951 hours of sunshine per year. May is the sunniest month with 209 hours, while January is the cloudiest with just 128 hours.

Tsumagoi 3-Day Forecast

Tsumagoi 3-Day Forecast

Tsumagoi on the map

Tsumagoi is highlighted — select any city to see its climate.

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