Average sea water temperature in October:
+73.7°F
| Minimum sea water temperature in October: | 79.2°F |
| Maximum sea water temperature in October: | 69.6°F |
Daily sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 75.1°F. The highest and lowest sea temperatures during the month were 77.5°F and 72.7°F.
Monthly sea water temperature in Hakone, °F
Which Japan resorts have warmest sea in October?
| Place name | October 2025 | October 2024 |
|---|---|---|
| Okinawa | 84.7°F | 82.9°F |
| Nagasaki | 79.8°F | 78.4°F |
| Fukuoka | 76.5°F | 74.9°F |
| Hiroshima | 75.8°F | 76.3°F |
| Kobe | 75.2°F | 75.8°F |
| Hakone | 75.1°F | 75.8°F |
| Atami | 75.1°F | 76.5°F |
| Nagoya | 74.6°F | 76.0°F |
| Osaka | 74.3°F | 75.5°F |
| Kamakura | 74.2°F | 74.8°F |
| Nara | 74.1°F | 75.0°F |
| Kyoto | 73.4°F | 73.6°F |
| Yokohama | 72.9°F | 73.0°F |
| Tokyo | 72.9°F | 73.2°F |
| Sapporo | 65.1°F | 64.3°F |
| Noboribetsu | 63.8°F | 64.6°F |
Best time for vacation in Hakone
Hakone on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Hakone
Local time: 20:45
December 26, friday
2100

41°F
W
7 mph
7 mph
December 27, saturday
0000

39°F
W
6 mph
6 mph
0300

39°F
W
4 mph
4 mph
0600

37°F
W
4 mph
4 mph
0900

39°F
W
3 mph
3 mph
1200

41°F
NW
5 mph
5 mph
1500

41°F
N
5 mph
5 mph
1800

41°F
NE
1 mph
1 mph



























