Annual mean 17°C · wettest around June · prevailing wind SW
Warmest
31.3 °C
Coldest
8.8 °C
Wettest
36%
Windiest
5.6 m/s
Prevailing
SW
4.5 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 Hamamatsu over the whole year is 17°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 4°C. The rainy (wet) season in Hamamatsu runs from March to October, peaking in June with a 24% chance of rain on a given day. The dry season is November to February; January is the driest month, at 7%. Winds in Hamamatsu are highest in January, averaging 4.5 m/s (16 km/h), and lightest in September, at 3.1 m/s (11 km/h). The prevailing wind is from the SW. The clearest skies in Hamamatsu come in January, when the sky is typically 49% covered; June is the cloudiest month, at 77%.
Month by month Hamamatsu 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
9°C
4°C
3°C
7%
49%
4.5 m/s
0
0
29
February
10°C
4°C
5°C
10%
55%
4.3 m/s
2
0
35
March
14°C
8°C
9°C
18%
60%
4.0 m/s
17
0
64
April
18°C
12°C
15°C
19%
65%
3.9 m/s
53
1
78
May
22°C
17°C
20°C
21%
71%
3.4 m/s
82
14
64
June
25°C
21°C
25°C
24%
77%
3.2 m/s
64
48
26
July
29°C
25°C
32°C
21%
74%
3.2 m/s
12
51
2
August
31°C
26°C
33°C
17%
69%
3.3 m/s
4
37
1
September
27°C
23°C
29°C
24%
74%
3.1 m/s
33
57
9
October
22°C
17°C
21°C
18%
67%
3.2 m/s
73
26
55
November
17°C
12°C
14°C
11%
55%
3.4 m/s
53
1
79
December
12°C
6°C
6°C
8%
52%
4.3 m/s
6
0
48
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 Hamamatsu weather by season
Year round, Hamamatsu has days of about 9°C at their warmest in January, its coolest month, and 31°C in August, its warmest; the coolest hours of the day run from 4°C to 26°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around June and least likely around January. 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.
Hamamatsu weather in winterDecember to February
High 10°CLow 5°CRain 8%
Winter in Hamamatsu has typical daily highs of about 10°C and lows of about 5°C, with a 8% chance of rain on a given day.
Hamamatsu weather in springMarch to May
High 18°CLow 12°CRain 19%
Spring in Hamamatsu has typical daily highs of about 18°C and lows of about 12°C, with a 19% chance of rain on a given day.
Hamamatsu weather in summerJune to August
High 28°CLow 24°CRain 21%
Summer in Hamamatsu has typical daily highs of about 28°C and lows of about 24°C, with a 21% chance of rain on a given day.
Hamamatsu weather in autumnSeptember to November
High 22°CLow 17°CRain 18%
Autumn in Hamamatsu has typical daily highs of about 22°C and lows of about 17°C, with a 18% chance of rain on a given day.
When is the rainy season in Hamamatsu?
The rainy (wet) season in Hamamatsu runs from March to October, peaking in June with a 24% chance of rain on a given day. The dry season is November to February; January is the driest month, at 7%.
What time of year is Hamamatsu windiest?
Winds in Hamamatsu are highest in January, averaging 4.5 m/s (16 km/h), and lightest in September, at 3.1 m/s (11 km/h). The prevailing wind is from the SW.
What is the average temperature in Hamamatsu year round?
The average temperature in Hamamatsu over the whole year is 17°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 4°C.