Shūnan

Shūnan Shi, Yamaguchi, Japan

Unlock Minute-by-Minute Forecast

See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.

Current Weather

21°

Partly Cloudy

Feels Like: 19°

Min: 21°

Max: 25°

The next few hours will be partly cloudy, with today reaching 25°C and dropping to 20°C. The coming days will be rain throughout the day.

Does this forecast seem accurate?

Unlock Historical Data

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

Hourly Forecast

21° 21° 21° 21° 21° 21° 22° 22° 23° 24° 24° 24° 25° 25° 25° 24° 23° 22° 22° 21° 21° 21° 21° 21°
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
Today
Tomorrow

Daylight Hours

06:05

Sunrise

18:04

Sunset

11 hours 58 minutes of sunlight today

Moon

Waxing Gibbous

15:11

Moonrise

01:12

Moonset

Daily Forecast

Monday

21°
25°

Tuesday

19°
26°

Wednesday

16°
23°

Thursday

18°
23°

Friday

21°
25°

Saturday

20°
22°

Sunday

22°
23°

Monday

22°
23°

Tuesday

21°
23°

Wednesday

18°
24°

Air Quality Data Available

Upgrade to access real-time air quality data for Shūnan.

UV Index

No protection needed
0 Low
Low Extreme

Humidity

76% Humid
Low High

Current stargazing conditions?

See sky darkness, moon phase, and the best viewing window for Shūnan.

View stargazing score

Weather in Shūnan today, September 21, 2026

Expect a mostly clear day in Shūnan on September 21, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. Expect a grey start, with morning cloud around 62% by 03:00. Outdoor plans early on should not rely on bright skies.

The temperature range runs from about 21°C up to 25°C. The air stays humid, with relative humidity between 52% and 76% and the peak around 01:00. Winds stay light, near 6.1 km/h by 12:00, so the day feels still more than breezy.

Expect a more open afternoon, with limited cloud around 31% by 12:00. Residual damp risk should be lower than earlier. Horizontal visibility holds close to 16.1 km. Expect sunrise at 06:05, sunset at 18:04, and 11 hours 58 minutes of sunlight today overall.

The practical takeaway for Shūnan is a bright September 21, 2026, ideal for outdoor errands before temperatures ease from about 25°C.

Frequently asked questions about weather in Shūnan

How warm does it get in Shūnan?

The warmest month in Shūnan is August, with average high temperatures of 30°C. The average temperature during this period is around 28°C.

How cold does it get in Shūnan?

The coldest month in Shūnan is February, with average low temperatures of 5°C. The average temperature during this period is around 7°C.

What is the wettest time of year in Shūnan?

The wettest month in Shūnan is July, with an average of 276mm of precipitation.

What is the driest time of year in Shūnan?

The driest month in Shūnan is December, with an average of 65mm of precipitation.

View full climate insights for Shūnan →

Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)