Average sea water temperature in August:
+80.5°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 81.2°F. The highest and lowest sea temperatures during the month were 82.0°F and 80.1°F.
Monthly sea water temperature in Hakone, °F
Which Japan resorts have warmest sea in August?
| Place name | August 2026 | August 2025 |
|---|---|---|
| Fukuoka | 84.9°F | 85.2°F |
| Kyoto | 84.9°F | 86.3°F |
| Nagasaki | 84.8°F | 84.8°F |
| Nagoya | 84.7°F | 86.4°F |
| Nara | 84.6°F | 85.7°F |
| Osaka | 84.3°F | 85.5°F |
| Okinawa | 84.1°F | 85.4°F |
| Kobe | 83.7°F | 84.8°F |
| Hiroshima | 82.7°F | 83.2°F |
| Tokyo | 82.1°F | 83.7°F |
| Yokohama | 81.6°F | 82.8°F |
| Kamakura | 81.2°F | 81.5°F |
| Atami | 81.2°F | 80.7°F |
| Hakone | 81.2°F | 80.9°F |
| Sapporo | 74.3°F | 77.2°F |
| Noboribetsu | 70.7°F | 74.8°F |
Best time for vacation in Hakone
Hakone on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Hakone
Local time: 11:58
September 18, friday
1200
75°F
SW
22 mph
22 mph
1500
75°F
SW
21 mph
21 mph
1800
72°F
SW
21 mph
21 mph
2100
72°F
SW
18 mph
18 mph
September 19, saturday
0000
70°F
S
17 mph
17 mph
0300
70°F
S
15 mph
15 mph
0600
72°F
S
14 mph
14 mph
0900
72°F
S
15 mph
15 mph
