Tosa

Tosa Shi, Kochi Prefecture, 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

25°

Mostly Cloudy

Feels Like: 23°

Min: 21°

Max: 30°

The next few hours will be mostly cloudy, with today reaching 30°C and dropping to 21°C. The coming days will be drizzle

Does this forecast seem accurate?

Unlock Historical Data

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

Hourly Forecast

25° 25° 25° 25° 26° 27° 27° 28° 29° 29° 29° 30° 28° 27° 26° 25° 24° 23° 22° 21° 21° 21° 21° 21°
4am
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
Today
Tomorrow

Daylight Hours

05:59

Sunrise

17:57

Sunset

11 hours 58 minutes of sunlight today

Moon

Waxing Gibbous

15:03

Moonrise

01:07

Moonset

Daily Forecast

Monday

21°
30°

Tuesday

21°
28°

Wednesday

18°
26°

Thursday

20°
26°

Friday

21°
27°

Saturday

21°
25°

Sunday

23°
25°

Monday

23°
25°

Tuesday

23°
26°

Wednesday

21°
27°

Air Quality Data Available

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

UV Index

No protection needed
0 Low
Low Extreme

Humidity

68% Comfortable
Low High

Current stargazing conditions?

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

View stargazing score

Weather in Tosa today, September 21, 2026

Cloud cover dominates in Tosa on September 21, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. The morning sky stays heavily clouded, with cover near 71% around 04:00. Grey conditions set the early tone before any later change.

Expect highs of 30°C and cooler readings close to 21°C. Expect humidity between 56% and 75%, most humid near 23:00. Airflow remains manageable, reaching about 4.5 km/h around 09:00.

Through the afternoon skies look more workable, with cloud near 51% around 12:00. Later outdoor plans have a clearer window than the morning may have suggested. Views remain open at about 16.1 km. Expect sunrise at 05:59, sunset at 17:57, and 11 hours 58 minutes of sunlight today overall.

In short, cloud leads the story in Tosa on September 21, 2026; expect limited sun and a peak around 30°C.

Frequently asked questions about weather in Tosa

How warm does it get in Tosa?

The warmest month in Tosa is August, with average high temperatures of 30°C. The average temperature during this period is around 27°C.

How cold does it get in Tosa?

The coldest month in Tosa is January, with average low temperatures of 4°C. The average temperature during this period is around 7°C.

What is the wettest time of year in Tosa?

The wettest month in Tosa is July, with an average of 404mm of precipitation.

What is the driest time of year in Tosa?

The driest month in Tosa is December, with an average of 63mm of precipitation.

View full climate insights for Tosa →

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)