Average sea water temperature in January:
+55.9°F
| Minimum sea water temperature in January: | 59.9°F |
| Maximum sea water temperature in January: | 52.0°F |
Daily sea water temperature in January, °F
Show year:
2026
2025
2024
The average sea water temperature in January of 2026 was 58.1°F. The highest and lowest sea temperatures during the month were 59.5°F and 57.2°F.
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| Hiroshima |
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| Hiroshima |
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| Hiroshima |
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| Hiroshima |
Monthly sea water temperature in Hiroshima, °F
Which Japan resorts have warmest sea in January?
| Place name | January 2026 | January 2025 |
|---|---|---|
| Okinawa | 72.4°F | 71.6°F |
| Nagasaki | 62.9°F | 60.3°F |
| Hakone | 61.9°F | 61.0°F |
| Atami | 61.9°F | 61.1°F |
| Kamakura | 61.1°F | 61.1°F |
| Fukuoka | 58.6°F | 56.8°F |
| Hiroshima | 58.1°F | 56.1°F |
| Yokohama | 55.8°F | 55.9°F |
| Nagoya | 55.7°F | 53.7°F |
| Kobe | 55.2°F | 52.5°F |
| Osaka | 55.1°F | 51.1°F |
| Nara | 54.6°F | 51.1°F |
| Kyoto | 53.5°F | 50.7°F |
| Tokyo | 53.3°F | 52.9°F |
| Noboribetsu | 45.2°F | 43.3°F |
| Sapporo | 40.6°F | 41.6°F |
Best time for vacation in Hiroshima
Hiroshima on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Hiroshima
Local time: 07:05
January 16, friday
0900
48°F
S
2 mph
2 mph
1200
55°F
N
1 mph
1 mph
1500
57°F
N
2 mph
2 mph
1800
46°F
E
1 mph
1 mph
2100
43°F
S
3 mph
3 mph
January 17, saturday
0000
41°F
S
2 mph
2 mph
0300
39°F
S
3 mph
3 mph
0600
37°F
S
4 mph
4 mph
