Spring (March–May): Average 11.9–19.4°C, mild climate but with relatively high rainfall, especially in April and May. Common activities: enjoying nature, flower viewing, visiting Hamamatsu Castle. Recommended clothing: light jacket, long-sleeved shirts and pants.
Summer (June–August): Average 23.0–28.3°C, hot and humid with relatively high rainfall. July is the rainiest month. Common activities: beach activities, swimming, outdoor sports (pay attention to sun protection and rain protection). Recommended clothing: light and breathable clothing, sun hat, rain gear.
Autumn (September–November): Average 15.4–26.4°C, comfortable and pleasant climate with gradually decreasing rainfall. Common activities: autumn leaves viewing, outdoor excursions, enjoying autumn cuisine. Recommended clothing: light jacket, long-sleeved shirts and pants.
Winter (December–February): Average 6.6–8.6°C, cold and dry with low rainfall. Common activities: onsen experience, indoor activities. Recommended clothing: warm jacket, sweater, scarf and gloves.
Hamamatsu climatological average
Annual average temperature: approx. 17.7°C / Annual rainfall: approx. 2344 mm / Summer humidity: 70%–80% / Rainiest month: July
Hamamatsu monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
6.6°C
39.1
February
7.9°C
94.9
March
11.9°C
149.3
April
16.7°C
230.4
May
19.4°C
311.4
June
23°C
321.8
July
27.9°C
342.4
August
28.3°C
222.1
September
26.4°C
269.1
October
20°C
185.6
November
15.4°C
137
December
8.6°C
40.9
Hamamatsu weather for the next seven days
10/15
Wednesday
Moderate rain
20.5°C/18.8°C
10/16
Thursday
Patchy rain nearby
22.4°C/20.3°C
10/17
Friday
Patchy rain nearby
22.7°C/19.3°C
10/18
Saturday
Patchy rain nearby
24.6°C/19.5°C
10/19
Sunday
Patchy rain nearby
25.1°C/19.5°C
10/20
Monday
Moderate rain
19°C/17.1°C
10/21
Tuesday
Moderate rain
16.5°C/15.7°C
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