Measurements:
°C
°F
CURRENT WEATHER
09:35
Hiroshima
90°F
N 1 mph
Feels like: 100°F
Precip: 5%
World Resorts Japan Hiroshima Weather

7 Day Weather Forecast

07.27
mon
DAY
96°F
N 4 mph
precip
5%
NIGHT
78°F
SW 1 mph
precip
13%
07.28
tue
DAY
96°F
N 6 mph
precip
4%
NIGHT
76°F
SE 4 mph
precip
57%
07.29
wed
DAY
92°F
E 4 mph
precip
36%
NIGHT
76°F
S 3 mph
precip
12%
07.30
thu
DAY
94°F
N 4 mph
precip
3%
NIGHT
76°F
S 4 mph
precip
8%
07.31
fri
DAY
96°F
N 4 mph
precip
1%
NIGHT
78°F
S 4 mph
precip
9%
08.01
sat
DAY
98°F
N 2 mph
precip
1%
NIGHT
76°F
S 5 mph
precip
8%
08.02
sun
DAY
96°F
N 3 mph
precip
1%
NIGHT
78°F
S 1 mph
precip
10%

Hiroshima Sea Water Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Hiroshima was 25.8°F. The maximum and minimum values were 21.9°F and 29.2°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 89.6 °F
September 85.7 °F
Warmest sea temperature:
August 84.7 °F
September 81.5 °F
July 80.7 °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