Kōzan

Sera-gun, Hiroshima-ken, Japan

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Current Weather

20°

Partly Cloudy

Feels Like: 19°

Min: 19°

Max: 24°

The next few hours will be overcast, with tomorrow reaching 26°C and dropping to 19°C. The coming days will be cloudy

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Compare today's weather with yesterday's data and track temperature trends over time.

Hourly Forecast

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Today
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Daylight Hours

05:56

Sunrise

18:06

Sunset

12 hours 10 minutes of sunlight today

Moon

Waxing Crescent

10:52

Moonrise

20:47

Moonset

Daily Forecast

Today

19°
24°

Thursday

16°
26°

Friday

19°
25°

Saturday

20°
27°

Sunday

20°
27°

Monday

19°
26°

Tuesday

17°
26°

Wednesday

16°
26°

Thursday

17°
27°

Friday

18°
24°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

88% Humid
Low High

Weather in Kōzan tomorrow, September 17, 2026

Kōzan stays under cloudy skies on September 17, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open. The opening hours look fair, as cloud stays near 40% around 11:00. Morning errands should face fewer weather interruptions.

Temperatures climb from an overnight low near 16°C toward a daytime high of about 26°C. Expect humidity between 58% and 87%, most humid near 18:00. Airflow remains manageable, reaching about 3.5 km/h around 00:00.

Afternoon conditions open up, holding cloud close to 53% near 15:00. The day finishes on a milder, brighter note. Visibility stays near 16.1 km. Daylight runs from 05:57 to 18:05, lasting 12 hours 7 minutes of sunlight today.

Taken together, overcast skies in Kōzan on September 17, 2026 favour indoor or covered options, with temperatures near 26°C.

Frequently asked questions about weather in Kōzan

How warm does it get in Kōzan?

The warmest month in Kōzan is August, with average high temperatures of 33°C. The average temperature during this period is around 28°C.

How cold does it get in Kōzan?

The coldest month in Kōzan is January, with average low temperatures of 1°C. The average temperature during this period is around 5°C.

What is the wettest time of year in Kōzan?

The wettest month in Kōzan is July, with an average of 247mm of precipitation.

What is the driest time of year in Kōzan?

The driest month in Kōzan is December, with an average of 43mm of precipitation.

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Metric (°C, km/h)