Tatsuno

Kamiina-gun, Nagano-ken, Japan

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Current Weather

21°

Misty

Feels Like: 20°

Min: 18°

Max: 24°

The next few hours will be misty, with today reaching 24°C and dropping to 19°C. The coming days will be drizzle

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Hourly Forecast

20° 21° 22° 23° 24° 24° 24° 24° 23° 22° 22° 21° 21° 21° 20° 20° 20° 20° 19° 19° 19° 19° 19° 20°
66%
66%
18%
18%
18%
14%
8%
8%
8%
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
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3am
4am
5am
6am
7am
Today
Tomorrow

Daylight Hours

05:40

Sunrise

17:39

Sunset

11 hours 58 minutes of sunlight today

Moon

Waxing Gibbous

14:51

Moonrise

00:41

Moonset

Daily Forecast

Monday

18°
24°

Tuesday

15°
24°

Wednesday

15°
24°

Thursday

16°
25°

Friday

14°
24°

Saturday

16°
18°

Sunday

16°
20°

Monday

16°
21°

Tuesday

14°
23°

Wednesday

12°
20°

Air Quality Data Available

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UV Index

No protection needed
1 Low
Low Extreme

Humidity

93% Very Humid
Low High

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Weather in Tatsuno today, September 21, 2026

Rain features in Tatsuno on September 21, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. Wetter spells lean into the morning, when rain odds reach about 66% near 08:00. Skies look heaviest around 08:00, with cover close to 100%.

Expect highs of 24°C and cooler readings close to 18°C. Moisture in the air spans 78%-95%, with the highest values around 23:00. Winds stay light, near 4.7 km/h by 12:00, so the day feels still more than breezy.

Through the afternoon the main story eases from the wetter morning, with rain odds nearer 18% after earlier peaks around 66%. Cloud remains in play near 100% around 12:00, but the heaviest damp risk should be behind you. Visibility stays generally good near 1.7 km on average, though it can drop toward 0.0 km in thicker cloud or showers. Expect sunrise at 05:40, sunset at 17:39, and 11 hours 58 minutes of sunlight today overall.

The practical takeaway for Tatsuno on September 21, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 24°C.

Frequently asked questions about weather in Tatsuno

How warm does it get in Tatsuno?

The warmest month in Tatsuno is August, with average high temperatures of 28°C. The average temperature during this period is around 23°C.

How cold does it get in Tatsuno?

The coldest month in Tatsuno is January, with average low temperatures of -5°C. The average temperature during this period is around -2°C.

What is the wettest time of year in Tatsuno?

The wettest month in Tatsuno is July, with an average of 226mm of precipitation.

What is the driest time of year in Tatsuno?

The driest month in Tatsuno is January, with an average of 80mm of precipitation.

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Metric (°C, km/h)