Current sea water temperature:
+64.4°F
| Minimum sea water temperature in April: | 65.5°F |
| Maximum sea water temperature in April: | 57.7°F |
| Average sea water temperature in April: | 62.3°F |
| more information | |
14 days
forecast
forecast
| Nagasaki |
monthly
weather
weather
| Nagasaki |
Sea water temperature for the last 10 days:
| April 27 | 64.4°F | April 22 | 64.4°F |
| April 26 | 64.8°F | April 21 | 64.9°F |
| April 25 | 64.4°F | April 20 | 64.9°F |
| April 24 | 64.8°F | April 19 | 64.9°F |
| April 23 | 64.2°F | April 18 | 64.2°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
May
May
| Nagasaki |
Best time for vacation in Nagasaki
Nagasaki on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Nagasaki
Local time: 16:32
April 27, monday
1800
64°F
E
5 mph
5 mph
2100
61°F
NE
1 mph
1 mph
April 28, tuesday
0000
61°F
E
2 mph
2 mph
0300
59°F
E
3 mph
3 mph
0600
59°F
NE
3 mph
3 mph
0900
64°F
NE
7 mph
7 mph
1200
66°F
NE
9 mph
9 mph
1500
66°F
NE
9 mph
9 mph
