Isesaki

Isesaki Shi, Gunma-ken, Japan

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Current Weather

20°

Light Rain

Feels Like: 21°

Min: 20°

Max: 24°

The next few hours will be rain and humid, with today reaching 24°C and dropping to 24°C. The coming days will be light rain throughout the day.

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Hourly Forecast

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96%
96%
96%
76%
76%
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Today
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Daylight Hours

05:36

Sunrise

17:34

Sunset

11 hours 58 minutes of sunlight today

Moon

Waxing Gibbous

14:47

Moonrise

00:35

Moonset

Daily Forecast

Monday

20°
24°

Tuesday

22°
29°

Wednesday

21°
25°

Thursday

19°
27°

Friday

19°
24°

Saturday

18°
20°

Sunday

18°
22°

Monday

19°
23°

Tuesday

18°
25°

Wednesday

15°
26°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

94% Very Humid
Low High

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Weather in Isesaki today, September 21, 2026

Expect unsettled, showery conditions in Isesaki on September 21, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. Wetter spells lean into the morning, when rain odds reach about 100% near 01:00. Skies look heaviest around 01:00, with cover close to 100%.

The day peaks near 24°C and cools toward 20°C. Relative humidity sits between 85% and 96%, reaching its peak around 06:00. Expect gentle winds, highest near 23:00 at 7.0 km/h.

Afternoon showers stay in play, peaking near 100% around 12:00. Skies remain cluttered, with cover about 100% by 12:00. Expect visibility near 6.3 km, with poorer spells close to 1.1 km. Daylight runs from 05:36 to 17:34, lasting 11 hours 58 minutes of sunlight today.

Overall, Isesaki on September 21, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 100% and the high sits around 24°C.

Frequently asked questions about weather in Isesaki

How warm does it get in Isesaki?

The warmest month in Isesaki is August, with average high temperatures of 32°C. The average temperature during this period is around 28°C.

How cold does it get in Isesaki?

The coldest month in Isesaki is January, with average low temperatures of 0°C. The average temperature during this period is around 4°C.

What is the wettest time of year in Isesaki?

The wettest month in Isesaki is July, with an average of 204mm of precipitation.

What is the driest time of year in Isesaki?

The driest month in Isesaki is December, with an average of 34mm of precipitation.

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Metric (°C, km/h)