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Tomamu, Japan Weather Averages

August is the hottest month in Tomamu with an average temperature of 21°C (69°F) and the coldest is January at -6°C (20°F). The wettest month is September with an average of 157mm of rain..

Average Temperature Tomamu

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

Average High Low Temperature Tomamu

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

Average Rainfall Tomamu

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

Tomamu : Next 24-Hour Weather

Today - 5th July 2026

Sunrise 03:56

Sunrise

Sunset 19:11

Sunset
20:00
Partly cloudy
13°C (55°F)
21:00
Partly cloudy
12°C (53°F)
22:00
Partly cloudy
12°C (53°F)
23:00
Partly cloudy
13°C (54°F)

Tomorrow - 6th July 2026

Sunrise 03:56

Sunrise

Sunset 19:11

Sunset
0:00
Partly cloudy
13°C (55°F)
1:00
Partly cloudy
13°C (55°F)
2:00
Partly cloudy
13°C (55°F)
3:00
Partly cloudy
13°C (54°F)
4:00
Clear
12°C (53°F)
5:00
Clear
13°C (55°F)
6:00
Clear
16°C (61°F)
7:00
Clear
18°C (64°F)
8:00
Clear
20°C (67°F)
9:00
Clear
22°C (71°F)
10:00
Patchy rain possible
23°C (72°F)
11:00
Patchy rain possible
23°C (72°F)
12:00
Partly cloudy
22°C (71°F)
13:00
Partly cloudy
21°C (70°F)
14:00
Partly cloudy
21°C (68°F)
15:00
Partly cloudy
20°C (67°F)
16:00
Patchy rain possible
19°C (66°F)
17:00
Patchy rain possible
19°C (65°F)
18:00
Patchy rain possible
18°C (63°F)
19:00
Mist
17°C (61°F)