Current sea water temperature:
+81.3°F
| Minimum sea water temperature in September: | 86.2°F |
| Maximum sea water temperature in September: | 76.1°F |
| Average sea water temperature in September: | 80.4°F |
| more information | |
14 days
forecast
forecast
| Nagasaki |
monthly
weather
weather
| Nagasaki |
Sea water temperature for the last 10 days:
| September 15 | 81.3°F | September 10 | 82.0°F |
| September 14 | 81.1°F | September 9 | 82.8°F |
| September 13 | 81.3°F | September 8 | 82.9°F |
| September 12 | 81.5°F | September 7 | 83.1°F |
| September 11 | 81.7°F | September 6 | 83.5°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 84.8°F. The highest and lowest sea temperatures during the month were 86.5°F and 83.1°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 83.2°F. The highest and lowest sea temperatures during the month were 86.2°F and 81.1°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 81.2°F. The highest and lowest sea temperatures during the month were 86.4°F and 75.2°F.
current
weather
weather
| Nagasaki |
weather in
September
September
| Nagasaki |
Best time for vacation in Nagasaki
Nagasaki on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Nagasaki
Local time: 20:04
September 15, tuesday
2100
75°F
S
7 mph
7 mph
September 16, wednesday
0000
75°F
S
9 mph
9 mph
0300
73°F
SW
7 mph
7 mph
0600
75°F
SW
6 mph
6 mph
0900
75°F
SW
6 mph
6 mph
1200
81°F
SE
2 mph
2 mph
1500
81°F
E
7 mph
7 mph
1800
81°F
SW
2 mph
2 mph
