World Resorts Japan Hiroshima Weather

Hiroshima 7 Days Forecast

28.06
sun
Day
72°F
W 2 mph
Precip.
31%
Night
64°F
SW 1 mph
Precip.
24%
29.06
mon
Day
79°F
N 4 mph
Precip.
15%
Night
64°F
S 3 mph
Precip.
10%
30.06
tue
Day
79°F
N 2 mph
Precip.
6%
Night
64°F
S 2 mph
Precip.
14%
01.07
wed
Day
73°F
N 3 mph
Precip.
45%
Night
70°F
SW 5 mph
Precip.
89%
02.07
thu
Day
81°F
W 2 mph
Precip.
3%
Night
64°F
S 5 mph
Precip.
11%
03.07
fri
Day
81°F
N 4 mph
Precip.
3%
Night
66°F
SW 1 mph
Precip.
11%
04.07
sat
Day
77°F
N 2 mph
Precip.
14%
Night
68°F
SW 2 mph
Precip.
92%

Sea water temperature in June, °F

Show year:
2026
2025
2024

The average sea water temperature in June of 2026 was 70.0°F. The highest and lowest sea temperatures during the month were 72.1°F and 68.0°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 81.6°F. The highest and lowest sea temperatures during the month were 84.4°F and 78.8°F.

Air temperature in Hiroshima, °F

Precipitation total in Hiroshima, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Hiroshima

Sunniest months:
May 16 days
October 15 days
April 14 days
Warmest months:
August 88.4 °F
July 85.8 °F
September 82.1 °F
Warmest sea temp:
August 81.2 °F
September 78.3 °F
July 77.6 °F
Coldest months:
January 46.3 °F
February 47.8 °F
December 49.7 °F
Rainiest months:
July 9 days
June 9 days
August 8 days
Windiest months:
December 5.9 mph
January 5.9 mph
February 5.6 mph

Hiroshima on a weather map

Hiroshima
+68°F
SW 2 mph
Feels like: +68°F
Precip.: 47%
Places in Japan:
Name
°F
+72°F
+72°F
+73°F
+68°F
+70°F
+68°F
+70°F
+68°F
+77°F
+70°F
+61°F
+72°F
+68°F
+72°F
+68°F
24 Hours Forecast
Hiroshima
Local time: 05:10
June 28, sunday
0600
68°F
SW
2 mph
0900
70°F
W
2 mph
1200
72°F
W
2 mph
1500
75°F
NW
4 mph
1800
72°F
N
4 mph
2100
66°F
SW
1 mph
June 29, monday
0000
64°F
SW
1 mph
0300
64°F
E
0 mph
Units of measurement: °C / °F