29.12
mon
mon
Day
55°F
N 6 mph
Precip.
76%
76%
Night
54°F
E 5 mph
Precip.
0%
0%
30.12
tue
tue
Day
59°F
SE 8 mph
Precip.
0%
0%
Night
48°F
S 11 mph
Precip.
0%
0%
31.12
wed
wed
Day
46°F
S 14 mph
Precip.
0%
0%
Night
39°F
S 9 mph
Precip.
0%
0%
01.01
thu
thu
Day
41°F
S 16 mph
Precip.
0%
0%
Night
36°F
SW 6 mph
Precip.
0%
0%
02.01
fri
fri
Day
46°F
S 1 mph
Precip.
0%
0%
Night
46°F
SE 6 mph
Precip.
75%
75%
03.01
sat
sat
Day
52°F
SE 16 mph
Precip.
89%
89%
Night
45°F
SE 9 mph
Precip.
0%
0%
04.01
sun
sun
Day
50°F
SE 12 mph
Precip.
0%
0%
Night
46°F
SE 4 mph
Precip.
76%
76%
sea water
temperature
temperature
| Nagasaki |
monthly
weather
weather
| Nagasaki |
current
weather
weather
| Nagasaki |
14 days
forecast
forecast
| Nagasaki |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 66.9°F. The highest and lowest sea temperatures during the month were 69.6°F and 64.4°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 60.3°F. The highest and lowest sea temperatures during the month were 62.1°F and 59.0°F.
Air temperature in Nagasaki, °F
Precipitation total in Nagasaki, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Nagasaki
Nagasaki on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Nagasaki
Local time: 07:37
December 29, monday
0900
52°F
N
5 mph
5 mph
1200
55°F
N
6 mph
6 mph
1500
57°F
NE
6 mph
6 mph
1800
55°F
E
6 mph
6 mph
2100
55°F
E
6 mph
6 mph
December 30, tuesday
0000
54°F
E
5 mph
5 mph
0300
54°F
E
5 mph
5 mph
0600
54°F
SE
6 mph
6 mph
