Kumagaya Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Kumagaya.
Climate overview of Kumagaya
The climate in Kumagaya, Saitama, Japan, is marked by large temperature swings across the seasons, ranging from 32°C (90°F) in August to 9°C (48°F) in January.
The city has a wet climate, receiving around 1632 mm (64 in) of rain/snowfall per year. Despite the high annual total, it has very warm summers and cold winters. September is the wettest month. Sunshine peaks in January, when the city sees around 6.7 hours of sunshine per day.
Kumagaya Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kumagaya - and find the best time to visit.
Monthly Temperature in Kumagaya
In Kumagaya, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 32°C (90°F) in August to a chilly 9°C (48°F) in January.
Nighttime temperatures range from 23°C (73°F) in August to 0°C (32°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Kumagaya
Kumagaya experiences significant rain/snowfall throughout the year, averaging 1632 mm (64 in) of precipitation annually. The seasons in Kumagaya bring significant changes in precipitation. The wettest month, September, receives heavy rainfall, with an average of 225 mm (8.9 in) of precipitation. This rainfall is distributed across 20 rainy days.
In contrast, the driest month, December, experiences much less rainfall, totaling 52 mm (2 in) over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Kumagaya 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 Kumagaya
Kumagaya enjoys sunny spells year-round. January sees up to 6.7 hours of daily sunshine, perfect for a sunny trip. June, the least sunny month, still offers a generous 4.2 hours of sun despite this cloudier time of the year.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Kumagaya
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May
- Warmest weather: July and August
- Most sunshine: January
- Fewest rainy days: January and December
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around 0°C (32°F).
Frequently asked questions about the climate in Kumagaya
What is the best time to visit Kumagaya?
May typically offers the most optimal weather in Kumagaya. In contrast, January, February and July tend to have less optimal conditions. Kumagaya has very warm summers and cold winters.
What temperatures can I expect in Kumagaya?
Daytime highs range from 9°C (48°F) in January to 32°C (90°F) in August. Nighttime lows range from 0°C (32°F) to 23°C (73°F). Temperatures vary considerably through the year.
How much rain does Kumagaya get?
Annual rainfall is around 1632 mm (64 in). September is the wettest month with 225 mm (8.9 in), while December is the driest with 52 mm (2 in).
How sunny is Kumagaya?
Kumagaya 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, Kumagaya enjoys abundant sunshine.
Kumagaya 3-Day Forecast
Kumagaya on the map
Kumagaya is highlighted - select any city to see its climate.
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