Current sea water temperature:
+61.5°F
| Minimum sea water temperature in January: | 64.6°F |
| Maximum sea water temperature in January: | 57.7°F |
| Average sea water temperature in January: | 60.7°F |
| more information | |
14 days
forecast
forecast
| Nagasaki |
monthly
weather
weather
| Nagasaki |
Sea water temperature for the last 10 days:
| January 14 | 61.5°F | January 9 | 62.6°F |
| January 13 | 62.8°F | January 8 | 62.8°F |
| January 12 | 62.2°F | January 7 | 62.8°F |
| January 11 | 62.2°F | January 6 | 62.6°F |
| January 10 | 62.4°F | January 5 | 63.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Nagasaki?
Based on the data about daily sea water temperature for the last three years the warmest sea in Nagasaki was noticed in August, September and July.
Monthly Sea Temperatures in Nagasaki, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 84.8°F. The highest and lowest sea temperatures during the month were 86.4°F and 82.9°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 83.9°F. The highest and lowest sea temperatures during the month were 85.3°F and 81.9°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 83.4°F. The highest and lowest sea temperatures during the month were 85.1°F and 80.8°F.
current
weather
weather
| Nagasaki |
weather in
January
January
| Nagasaki |
Best time for vacation in Nagasaki
Nagasaki on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Nagasaki
Local time: 15:18
January 15, thursday
1800
59°F
NE
13 mph
13 mph
2100
59°F
E
12 mph
12 mph
January 16, friday
0000
57°F
SE
8 mph
8 mph
0300
54°F
S
6 mph
6 mph
0600
52°F
S
5 mph
5 mph
0900
52°F
SW
4 mph
4 mph
1200
59°F
S
2 mph
2 mph
1500
59°F
E
2 mph
2 mph
