Koshigaya
Saitama Prefecture, Japan
Current Weather
20°69°
Mostly Cloudy
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
Want a closer look at the weather?
Premium adds minute-by-minute rain timing, yesterday comparisons, and more detail across Airpult.
Air Quality
Air quality is satisfactory, and air pollution poses little or no risk.
Daylight Hours
06:01
Sunrise
16:48
Sunset
Moon
15:06
Moonrise
03:30
Moonset
Daily Forecast
Today
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Resources
UV Index
Humidity
Looking at the night sky?
See moon phases, eclipses, and seasons for this year.
View astronomyCurrent stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Koshigaya.
View stargazing scoreWeather 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. Moisture in the air spans 51%-81%, with the highest values around 23:00. A lighter breeze peaks around 18:00 near 10 km/h.The temperature range runs from about 50°F up to 70°F. Moisture in the air spans 51%-81%, with the highest values around 23:00. A lighter breeze peaks around 18:00 near 6 mph.
Through the afternoon cloud remains the main feature, with cover near 100% around 20:00. Bright spells should stay limited even as the day wears on. Visibility stays near 16.1 km. Expect sunrise at 06:01, sunset at 16:48, and 10 hours 46 minutes of sunlight today overall.Through the afternoon cloud remains the main feature, with cover near 100% around 20:00. Bright spells should stay limited even as the day wears on. Visibility stays near 10 mi. Expect sunrise at 06:01, sunset at 16:48, and 10 hours 46 minutes of sunlight today overall.
The practical takeaway for Koshigaya on October 23, 2026 is a cloudy day that stays usable, just not particularly bright, around 21°C.The practical takeaway for Koshigaya on October 23, 2026 is a cloudy day that stays usable, just not particularly bright, around 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.

