Average sea water temperature in December:
+60.9°F
| Minimum sea water temperature in December: | 65.8°F |
| Maximum sea water temperature in December: | 55.9°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 62.0°F. The highest and lowest sea temperatures during the month were 64.8°F and 59.7°F.
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| Hiroshima |
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Monthly sea water temperature in Hiroshima, °F
Which Japan resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Okinawa | 75.6°F | 75.3°F |
| Nagasaki | 67.3°F | 64.1°F |
| Atami | 66.3°F | 65.8°F |
| Hakone | 65.9°F | 65.7°F |
| Kamakura | 65.8°F | 65.1°F |
| Fukuoka | 62.8°F | 62.2°F |
| Hiroshima | 62.0°F | 61.6°F |
| Kobe | 60.8°F | 60.1°F |
| Yokohama | 60.6°F | 60.4°F |
| Nagoya | 59.7°F | 60.7°F |
| Osaka | 59.7°F | 58.7°F |
| Nara | 59.3°F | 58.2°F |
| Tokyo | 58.6°F | 58.4°F |
| Kyoto | 57.6°F | 56.4°F |
| Noboribetsu | 49.9°F | 50.2°F |
| Sapporo | 45.2°F | 45.2°F |
Best time for vacation in Hiroshima
Hiroshima on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Hiroshima
Local time: 18:08
December 23, tuesday
2100

43°F
SW
4 mph
4 mph
December 24, wednesday
0000

45°F
SW
2 mph
2 mph
0300

45°F
W
2 mph
2 mph
0600

46°F
SW
1 mph
1 mph
0900

46°F
SW
3 mph
3 mph
1200

50°F
SW
5 mph
5 mph
1500

50°F
SW
2 mph
2 mph
1800

50°F
SW
4 mph
4 mph



























