Measurements:
°C
°F
CURRENT WEATHER
06:56
Hiroshima
74°F
SW 2 mph
Feels like: 80°F
Precip: 30%
World Resorts Japan Hiroshima Weather

7 Day Weather Forecast

07.07
tue
DAY
86°F
N 4 mph
precip
26%
NIGHT
74°F
NE 2 mph
precip
37%
07.08
wed
DAY
84°F
N 5 mph
precip
15%
NIGHT
74°F
NE 3 mph
precip
38%
07.09
thu
DAY
86°F
N 3 mph
precip
5%
NIGHT
72°F
E 1 mph
precip
15%
07.10
fri
DAY
86°F
N 5 mph
precip
5%
NIGHT
72°F
NW 1 mph
precip
18%
07.11
sat
DAY
84°F
N 2 mph
precip
7%
NIGHT
72°F
S 1 mph
precip
17%
07.12
sun
DAY
86°F
N 4 mph
precip
5%
NIGHT
70°F
SE 1 mph
precip
13%
07.13
mon
DAY
86°F
N 4 mph
precip
5%
NIGHT
70°F
SE 1 mph
precip
13%

Hiroshima Sea Water Temperature in July, °F

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Hiroshima was 27.5°F. The maximum and minimum values were 26.0°F and 29.1°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 80.7 °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