Spring (March–May): Average 11.2–19.8°C, mild climate but with relatively high rainfall, especially in April. Common activities: Cherry blossom viewing, outdoor walks. Recommended clothing: Light jacket, long-sleeved shirts and pants.
Summer (June–August): Average 23.7–30.0°C, hot and humid, with the most rainfall in July. Be mindful of sun protection and heatstroke prevention. Common activities: Swimming at the beach, mountain climbing for cooler temperatures. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): Average 19.7–14.4°C, comfortable and pleasant climate with reduced rainfall. Common activities: Maple leaf viewing, enjoying autumn cuisine. Recommended clothing: Light jacket, long-sleeved shirts and pants.
Winter (December–February): Average 7.3–6.7°C, relatively low temperatures and humidity, with little rainfall. Common activities: Onsen (hot spring) visits, indoor leisure activities. Recommended clothing: Warm jacket, sweater, scarf.
Hiroshima climatological average
Annual average temperature: approx. 17.6°C / Annual rainfall: approx. 1529 mm / Summer humidity: 70%–80% / Rainiest month: July
Hiroshima monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
5.8°C
33.7
February
6.7°C
73.7
March
11.2°C
115
April
16.5°C
193.3
May
19.8°C
165.7
June
23.7°C
217
July
28.3°C
308
August
30°C
83.7
September
27.3°C
128.3
October
19.7°C
72
November
14.4°C
111
December
7.3°C
28.3
Hiroshima weather for the next seven days
10/16
Thursday
Moderate rain
25.3°C/19.3°C
10/17
Friday
Sunny
24.2°C/15.1°C
10/18
Saturday
Patchy rain nearby
24.4°C/17.3°C
10/19
Sunday
Moderate rain
18.8°C/17.1°C
10/20
Monday
Patchy rain nearby
21.1°C/15.9°C
10/21
Tuesday
Partly Cloudy
19.1°C/14.7°C
10/22
Wednesday
Sunny
19°C/10.6°C
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