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 67.5°F. The highest and lowest sea temperatures during the month were 69.6°F and 66.0°F.
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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 | 75.8°F | 75.3°F |
| Nagasaki | 67.5°F | 64.1°F |
| Atami | 66.5°F | 65.8°F |
| Hakone | 66.1°F | 65.7°F |
| Kamakura | 65.9°F | 65.1°F |
| Fukuoka | 63.0°F | 62.2°F |
| Hiroshima | 62.3°F | 61.6°F |
| Kobe | 61.1°F | 60.1°F |
| Yokohama | 61.0°F | 60.4°F |
| Osaka | 60.1°F | 58.7°F |
| Nagoya | 60.0°F | 60.7°F |
| Nara | 59.6°F | 58.2°F |
| Tokyo | 59.1°F | 58.4°F |
| Kyoto | 57.9°F | 56.4°F |
| Noboribetsu | 50.2°F | 50.2°F |
| Sapporo | 45.4°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: 19:48
December 20, saturday
2100
63°F
N
7 mph
7 mph
December 21, sunday
0000
63°F
N
11 mph
11 mph
0300
63°F
NE
11 mph
11 mph
0600
61°F
SE
17 mph
17 mph
0900
57°F
SE
12 mph
12 mph
1200
59°F
S
14 mph
14 mph
1500
55°F
S
15 mph
15 mph
1800
50°F
S
11 mph
11 mph
