Current sea water temperature:
+59.0°F
| Minimum sea water temperature in March: | 63.1°F |
| Maximum sea water temperature in March: | 55.6°F |
| Average sea water temperature in March: | 59.5°F |
| more information | |
14 days
forecast
forecast
| Hakone |
monthly
weather
weather
| Hakone |
Sea water temperature for the last 10 days:
| March 17 | 59.0°F | March 12 | 59.4°F |
| March 16 | 58.6°F | March 11 | 59.5°F |
| March 15 | 58.3°F | March 10 | 59.7°F |
| March 14 | 58.8°F | March 9 | 60.1°F |
| March 13 | 59.4°F | March 8 | 60.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Hakone?
Based on the data about daily sea water temperature for the last three years the warmest sea in Hakone was noticed in August, September and July.
Monthly Sea Temperatures in Hakone, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 80.9°F. The highest and lowest sea temperatures during the month were 82.8°F and 79.9°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 79.4°F. The highest and lowest sea temperatures during the month were 81.9°F and 75.7°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 80.0°F. The highest and lowest sea temperatures during the month were 82.4°F and 77.0°F.
current
weather
weather
| Hakone |
weather in
March
March
| Hakone |
Best time for vacation in Hakone
Hakone on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Hakone
Local time: 06:28
March 18, wednesday
0900
54°F
SW
3 mph
3 mph
1200
57°F
N
7 mph
7 mph
1500
57°F
N
9 mph
9 mph
1800
55°F
NE
8 mph
8 mph
2100
54°F
E
8 mph
8 mph
March 19, thursday
0000
52°F
NE
6 mph
6 mph
0300
52°F
E
4 mph
4 mph
0600
52°F
E
3 mph
3 mph
