Average sea water temperature in August:
+80.4°F
| Minimum sea water temperature in August: | 84.9°F |
| Maximum sea water temperature in August: | 75.9°F |
Daily 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.
Monthly sea water temperature in Hakone, °F
Which Japan resorts have warmest sea in August?
| Place name | August 2025 | August 2024 |
|---|---|---|
| Nagoya | 86.4°F | 86.2°F |
| Kyoto | 86.3°F | 86.2°F |
| Nara | 85.7°F | 85.2°F |
| Osaka | 85.5°F | 84.8°F |
| Okinawa | 85.4°F | 86.5°F |
| Fukuoka | 85.2°F | 85.9°F |
| Nagasaki | 84.8°F | 85.5°F |
| Kobe | 84.8°F | 83.6°F |
| Tokyo | 83.7°F | 84.3°F |
| Hiroshima | 83.2°F | 84.6°F |
| Yokohama | 82.8°F | 83.8°F |
| Kamakura | 81.5°F | 82.8°F |
| Hakone | 80.9°F | 82.8°F |
| Atami | 80.7°F | 82.8°F |
| Sapporo | 77.2°F | 74.6°F |
| Noboribetsu | 74.8°F | 74.5°F |
Best time for vacation in Hakone
Hakone on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Hakone
Local time: 12:33
April 28, tuesday
1500
70°F
NE
14 mph
14 mph
1800
64°F
NE
15 mph
15 mph
2100
64°F
NE
14 mph
14 mph
April 29, wednesday
0000
64°F
NE
13 mph
13 mph
0300
63°F
E
4 mph
4 mph
0600
63°F
S
3 mph
3 mph
0900
66°F
SW
7 mph
7 mph
1200
68°F
W
6 mph
6 mph
