Kōshi

Kōshi Shi, Kumamoto, Japan

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Current Weather

22°

Drizzle

Feels Like: 21°

Min: 21°

Max: 28°

The next few hours will be drizzle, with today reaching 28°C and dropping to 21°C. The coming days will be mostly cloudy

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Hourly Forecast

22° 22° 22° 23° 24° 24° 25° 25° 26° 27° 28° 27° 26° 25° 25° 24° 23° 23° 22° 22° 21° 21° 21° 21°
26%
26%
30%
30%
30%
50%
50%
50%
72%
72%
72%
58%
58%
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
Today
Tomorrow

Daylight Hours

06:06

Sunrise

18:15

Sunset

12 hours 9 minutes of sunlight today

Moon

Waxing Crescent

10:57

Moonrise

21:01

Moonset

Daily Forecast

Wednesday

21°
28°

Thursday

21°
30°

Friday

22°
26°

Saturday

22°
29°

Sunday

22°
30°

Monday

20°
29°

Tuesday

19°
29°

Wednesday

18°
28°

Thursday

21°
29°

Friday

22°
26°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

89% Humid
Low High

Weather in Kōshi today, September 16, 2026

Expect unsettled, showery conditions in Kōshi on September 16, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. Early hours look the most unsettled, with rain probability near 50% by 10:00. The thickest cloud arrives around 09:00, reaching about 68%.

The day peaks near 28°C and cools toward 21°C. Relative humidity sits between 68% and 89%, reaching its peak around 05:00. Airflow remains manageable, reaching about 1.9 km/h around 21:00.

Through the afternoon wet weather remains a factor, with rain chances near 72% around 13:00. Cloud also stays substantial, close to 58% near 12:00. Visibility stays generally good near 15.2 km on average, though it can drop toward 9.4 km in thicker cloud or showers. Sunrise is at 06:06 and sunset at 18:15, giving 12 hours 9 minutes of sunlight today.

In short, treat September 16, 2026 in Kōshi as a damp day: pack covers, watch the wetter hours, and expect a high near 28°C.

Frequently asked questions about weather in Kōshi

How warm does it get in Kōshi?

The warmest month in Kōshi 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 Kōshi?

The coldest month in Kōshi is January, with average low temperatures of 2°C. The average temperature during this period is around 6°C.

What is the wettest time of year in Kōshi?

The wettest month in Kōshi is June, with an average of 383mm of precipitation.

What is the driest time of year in Kōshi?

The driest month in Kōshi is December, with an average of 61mm of precipitation.

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Metric (°C, km/h)