Koshigaya

Saitama Prefecture, Japan

Current Weather

21°69°

Overcast

Feels Like: 21°70°

Min: 10°50°

Max: 21°70°

The next few hours will be partly cloudy, with today reaching 21°C and dropping to 15°C. The coming days will be light rain throughout the day.

Hourly Forecast

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Air Quality

43
Good

Air quality is satisfactory, and air pollution poses little or no risk.

GoodHazardous

Daylight Hours

06:01

Sunrise

16:48

Sunset

10 hours 46 minutes of sunlight today

Moon

15:06

Moonrise

03:30

Moonset

Daily Forecast

Today

10°50°
21°70°

Saturday

15°60°
17°63°

Sunday

17°62°
21°70°

Monday

17°63°
22°72°

Tuesday

17°62°
21°69°

Wednesday

13°55°
17°63°

Thursday

12°54°
15°60°

Friday

12°53°
13°56°

Saturday

11°52°
23°73°

Sunday

11°52°
18°64°

UV Index

Wear sunscreen
4Moderate
LowExtreme

Humidity

52%Comfortable
LowHigh

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Weather in Koshigaya today, October 23, 2026

Koshigaya looks cloudy on October 23, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward.Koshigaya looks cloudy on October 23, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward.

The temperature range runs from about 10°C up to 21°C. The air stays humid, with relative humidity between 52% and 81% and the peak around 23:00. Airflow remains manageable, reaching about 10 km/h around 18:00.The temperature range runs from about 50°F up to 70°F. The air stays humid, with relative humidity between 52% and 81% and the peak around 23:00. Airflow remains manageable, reaching about 6 mph around 18:00.

Afternoon skies stay clogged, peaking close to 100% near 20:00. The grey theme continues rather than clearing out. Visibility stays near 16.1 km. The sun rises at 06:01 and sets at 16:48, for a total of 10 hours 46 minutes of sunlight today.Afternoon skies stay clogged, peaking close to 100% near 20:00. The grey theme continues rather than clearing out. Visibility stays near 10 mi. The sun rises at 06:01 and sets at 16:48, for a total of 10 hours 46 minutes of sunlight today.

Taken together, overcast skies in Koshigaya on October 23, 2026 favour indoor or covered options, with temperatures near 21°C.Taken together, overcast skies in Koshigaya on October 23, 2026 favour indoor or covered options, with temperatures near 70°F.

Frequently asked questions about weather in Koshigaya

How warm does it get in Koshigaya?

The warmest month in Koshigaya is August, with average high temperatures of 33°C. The average temperature during this period is around 29°C.The warmest month in Koshigaya is August, with average high temperatures of 91°F. The average temperature during this period is around 83°F.

How cold does it get in Koshigaya?

The coldest month in Koshigaya is January, with average low temperatures of 0°C. The average temperature during this period is around 5°C.The coldest month in Koshigaya is January, with average low temperatures of 32°F. The average temperature during this period is around 40°F.

What is the wettest time of year in Koshigaya?

The wettest month in Koshigaya is October, with an average of 177 mm of precipitation.The wettest month in Koshigaya is October, with an average of 7 in of precipitation.

What is the driest time of year in Koshigaya?

The driest month in Koshigaya is December, with an average of 41 mm of precipitation.The driest month in Koshigaya is December, with an average of 1.6 in of precipitation.

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