Average sea water temperature in January:
+60.6°F
| Minimum sea water temperature in January: | 65.3°F |
| Maximum sea water temperature in January: | 57.0°F |
Daily sea water temperature in January, °F
Show year:
2026
2025
2024
The average sea water temperature in January of 2026 was 61.9°F. The highest and lowest sea temperatures during the month were 63.9°F and 59.7°F.
Monthly sea water temperature in Hakone, °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 Hakone
Hakone on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Hakone
Local time: 14:42
January 16, friday
1500
57°F
W
5 mph
5 mph
1800
50°F
SW
3 mph
3 mph
2100
50°F
SW
5 mph
5 mph
January 17, saturday
0000
48°F
SW
6 mph
6 mph
0300
45°F
SE
2 mph
2 mph
0600
45°F
SE
2 mph
2 mph
0900
50°F
N
1 mph
1 mph
1200
54°F
W
3 mph
3 mph
