Current sea water temperature:
+58.5°F
| Minimum sea water temperature in April: | 62.4°F |
| Maximum sea water temperature in April: | 50.4°F |
| Average sea water temperature in April: | 57.5°F |
| more information | |
14 days
forecast
forecast
| Hiroshima |
monthly
weather
weather
| Hiroshima |
Sea water temperature for the last 10 days:
| April 26 | 58.5°F | April 21 | 59.2°F |
| April 25 | 58.3°F | April 20 | 59.2°F |
| April 24 | 60.1°F | April 19 | 59.0°F |
| April 23 | 60.6°F | April 18 | 58.3°F |
| April 22 | 60.3°F | April 17 | 57.9°F |
Monthly sea water temperature, °F
When is the warmest sea in Hiroshima?
Based on the data about daily sea water temperature for the last three years the warmest sea in Hiroshima was noticed in August, September and July.
Monthly Sea Temperatures in Hiroshima, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 83.2°F. The highest and lowest sea temperatures during the month were 84.9°F and 80.2°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 81.4°F. The highest and lowest sea temperatures during the month were 84.7°F and 77.5°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.
current
weather
weather
| Hiroshima |
weather in
May
May
| Hiroshima |
Best time for vacation in Hiroshima
Hiroshima on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Hiroshima
Local time: 15:01
April 27, monday
1800
63°F
NW
3 mph
3 mph
2100
55°F
SW
2 mph
2 mph
April 28, tuesday
0000
54°F
S
2 mph
2 mph
0300
54°F
SE
1 mph
1 mph
0600
54°F
E
2 mph
2 mph
0900
63°F
NE
4 mph
4 mph
1200
70°F
N
9 mph
9 mph
1500
70°F
NE
11 mph
11 mph
