Annual mean 16°C · wettest around June · prevailing wind W
Warmest
30.3 °C
Coldest
6.6 °C
Wettest
42%
Windiest
4.0 m/s
Prevailing
W
3.2 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Kumamoto over the whole year is 16°C. August is the hottest month, with highs of about 29°C; January is the coldest, with lows of about 3°C. The rainy (wet) season in Kumamoto runs from April to July, peaking in June with a 31% chance of rain on a given day. The dry season is October to March; December is the driest month, at 10%. Winds in Kumamoto are highest in February, averaging 3.3 m/s (12 km/h), and lightest in November, at 1.9 m/s (7 km/h). The prevailing wind is from the W. The clearest skies in Kumamoto come in November, when the sky is typically 60% covered; June is the cloudiest month, at 76%.
Month by month Kumamoto climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
7°C
3°C
3°C
11%
67%
2.7 m/s
2
0
33
February
8°C
3°C
4°C
15%
67%
3.3 m/s
4
0
36
March
12°C
7°C
9°C
18%
64%
3.2 m/s
22
0
61
April
18°C
11°C
15°C
21%
66%
3.3 m/s
55
3
75
May
22°C
16°C
20°C
21%
69%
3.1 m/s
74
21
59
June
24°C
20°C
25°C
31%
76%
3.0 m/s
53
45
27
July
28°C
24°C
31°C
27%
71%
3.1 m/s
23
40
8
August
29°C
24°C
32°C
20%
64%
3.0 m/s
20
34
7
September
26°C
21°C
28°C
23%
73%
2.9 m/s
38
46
19
October
21°C
16°C
21°C
20%
65%
2.4 m/s
70
23
59
November
16°C
10°C
14°C
13%
60%
1.9 m/s
47
2
77
December
9°C
4°C
6°C
10%
66%
2.1 m/s
6
0
44
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Kumamoto weather by season
Year round, Kumamoto has days of about 7°C at their warmest in January, its coolest month, and 29°C in August, its warmest; the coolest hours of the day run from 3°C to 24°C through the year, and the average temperature over the year is 16°C around the clock. Rain is most likely around June and least likely around December. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Kumamoto weather in winterDecember to February
High 8°CLow 3°CRain 12%
Winter in Kumamoto has typical daily highs of about 8°C and lows of about 3°C, with a 12% chance of rain on a given day.
Kumamoto weather in springMarch to May
High 17°CLow 11°CRain 20%
Spring in Kumamoto has typical daily highs of about 17°C and lows of about 11°C, with a 20% chance of rain on a given day.
Kumamoto weather in summerJune to August
High 27°CLow 23°CRain 26%
Summer in Kumamoto has typical daily highs of about 27°C and lows of about 23°C, with a 26% chance of rain on a given day.
Kumamoto weather in autumnSeptember to November
High 21°CLow 15°CRain 19%
Autumn in Kumamoto has typical daily highs of about 21°C and lows of about 15°C, with a 19% chance of rain on a given day.
When is the rainy season in Kumamoto?
The rainy (wet) season in Kumamoto runs from April to July, peaking in June with a 31% chance of rain on a given day. The dry season is October to March; December is the driest month, at 10%.
What time of year is Kumamoto windiest?
Winds in Kumamoto are highest in February, averaging 3.3 m/s (12 km/h), and lightest in November, at 1.9 m/s (7 km/h). The prevailing wind is from the W.
What is the average temperature in Kumamoto year round?
The average temperature in Kumamoto over the whole year is 16°C. August is the hottest month, with highs of about 29°C; January is the coldest, with lows of about 3°C.