Average sea water temperature in December:
+64.6°F
| Minimum sea water temperature in December: | 69.6°F |
| Maximum sea water temperature in December: | 59.7°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 66.7°F. The highest and lowest sea temperatures during the month were 69.6°F and 64.4°F.
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| Nagasaki |
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| Nagasaki |
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| Nagasaki |
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| Nagasaki |
Monthly sea water temperature in Nagasaki, °F
Which Japan resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Okinawa | 75.1°F | 75.3°F |
| Nagasaki | 66.7°F | 64.1°F |
| Atami | 65.9°F | 65.8°F |
| Hakone | 65.6°F | 65.7°F |
| Kamakura | 65.2°F | 65.1°F |
| Fukuoka | 62.2°F | 62.2°F |
| Hiroshima | 61.5°F | 61.6°F |
| Kobe | 60.1°F | 60.1°F |
| Yokohama | 59.7°F | 60.4°F |
| Nagoya | 59.4°F | 60.7°F |
| Osaka | 59.0°F | 58.7°F |
| Nara | 58.5°F | 58.2°F |
| Tokyo | 57.5°F | 58.4°F |
| Kyoto | 56.7°F | 56.4°F |
| Noboribetsu | 49.2°F | 50.2°F |
| Sapporo | 44.5°F | 45.2°F |
Best time for vacation in Nagasaki
Nagasaki on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Nagasaki
Local time: 16:29
January 10, saturday
1800
55°F
E
19 mph
19 mph
2100
50°F
SE
20 mph
20 mph
January 11, sunday
0000
48°F
E
22 mph
22 mph
0300
45°F
SE
25 mph
25 mph
0600
39°F
SE
21 mph
21 mph
0900
39°F
SE
24 mph
24 mph
1200
39°F
SE
21 mph
21 mph
1500
41°F
SE
17 mph
17 mph
