Current sea water temperature:
+85.5°F
| Minimum sea water temperature in September: | 87.6°F |
| Maximum sea water temperature in September: | 82.0°F |
| Average sea water temperature in September: | 85.4°F |
| more information | |
14 days
forecast
forecast
| Hoi An |
monthly
weather
weather
| Hoi An |
Sea water temperature for the last 10 days:
| September 13 | 85.5°F | September 8 | 85.8°F |
| September 12 | 85.6°F | September 7 | 86.0°F |
| September 11 | 85.8°F | September 6 | 85.8°F |
| September 10 | 85.8°F | September 5 | 85.8°F |
| September 9 | 85.6°F | September 4 | 85.5°F |
Monthly sea water temperature, °F
When is the warmest sea in Hoi An?
Based on the data about daily sea water temperature for the last three years the warmest sea in Hoi An was noticed in August, September and July.
Monthly Sea Temperatures in Hoi An, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 86.1°F. The highest and lowest sea temperatures during the month were 86.9°F and 84.9°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 85.0°F. The highest and lowest sea temperatures during the month were 86.4°F and 84.0°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 84.9°F. The highest and lowest sea temperatures during the month were 86.9°F and 82.6°F.
current
weather
weather
| Hoi An |
weather in
September
September
| Hoi An |
Best time for vacation in Hoi An
Hoi An on a weather map
Places in Vietnam:
Name
°F
24 Hours Forecast
Hoi An
Local time: 03:48
September 14, monday
0600
75°F
NE
4 mph
4 mph
0900
77°F
N
6 mph
6 mph
1200
79°F
N
4 mph
4 mph
1500
79°F
NW
5 mph
5 mph
1800
79°F
NW
11 mph
11 mph
2100
79°F
NW
7 mph
7 mph
September 15, tuesday
0000
77°F
N
6 mph
6 mph
0300
77°F
N
6 mph
6 mph
