Average sea water temperature in August:
+82.8°F
| Minimum sea water temperature in August: | 87.8°F |
| Maximum sea water temperature in August: | 78.4°F |
Daily sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 84.8°F. The highest and lowest sea temperatures during the month were 86.5°F and 83.1°F.
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| Nagasaki |
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Monthly sea water temperature in Nagasaki, °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 Nagasaki
Nagasaki on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Nagasaki
Local time: 22:27
September 01, tuesday
0000
81°F
S
2 mph
2 mph
0300
79°F
SW
2 mph
2 mph
0600
79°F
W
5 mph
5 mph
0900
82°F
W
3 mph
3 mph
1200
86°F
N
5 mph
5 mph
1500
86°F
SE
9 mph
9 mph
1800
84°F
SE
6 mph
6 mph
2100
82°F
NW
3 mph
3 mph
