Measurements:
°C
°F
CURRENT WEATHER
01:27
Hiroshima
76°F
E 1 mph
Feels like: 82°F
Precip: 16%
World Resorts Japan Hiroshima Weather

7 Day Weather Forecast

08.20
thu
DAY
92°F
N 6 mph
precip
3%
NIGHT
76°F
SE 1 mph
precip
14%
08.21
fri
DAY
94°F
NE 7 mph
precip
12%
NIGHT
76°F
E 1 mph
precip
37%
08.22
sat
DAY
94°F
N 6 mph
precip
12%
NIGHT
76°F
NE 1 mph
precip
14%
08.23
sun
DAY
94°F
N 6 mph
precip
12%
NIGHT
76°F
SE 1 mph
precip
14%
08.24
mon
DAY
94°F
N 6 mph
precip
2%
NIGHT
78°F
S 3 mph
precip
13%
08.25
tue
DAY
100°F
SW 3 mph
precip
1%
NIGHT
76°F
S 5 mph
precip
11%
08.26
wed
DAY
98°F
SW 4 mph
precip
1%
NIGHT
74°F
S 6 mph
precip
26%

Hiroshima Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Hiroshima was 27.9°F. The maximum and minimum values were 25.9°F and 29.5°F respectively.

Hiroshima on the Weather Map

Best Time to Visit Hiroshima
The most sunny months:
May 16 days
October 15 days
April 14 days
The most warm months:
August 92.6 °F
July 89.7 °F
September 85.7 °F
Warmest sea temperature:
August 84.7 °F
September 81.5 °F
July 80.8 °F
The most cold months:
January 45.8 °F
February 47.6 °F
December 49.7 °F
The most rainy months:
July 9 days
June 9 days
August 8 days
The most windy months:
December 6 mph
January 6 mph
February 6 mph
more details