Current sea water temperature:
+74.7°F
| Minimum sea water temperature in December: | 81.0°F |
| Maximum sea water temperature in December: | 72.7°F |
| Average sea water temperature in December: | 76.7°F |
| more information | |
14 days
forecast
forecast
| Hoi An |
monthly
weather
weather
| Hoi An |
Sea water temperature for the last 10 days:
| December 27 | 74.7°F | December 22 | 75.0°F |
| December 26 | 74.8°F | December 21 | 75.2°F |
| December 25 | 75.0°F | December 20 | 75.0°F |
| December 24 | 75.2°F | December 19 | 74.8°F |
| December 23 | 75.2°F | December 18 | 75.6°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:
2025
2024
2023
The average sea water temperature in August of 2025 was 85.4°F. The highest and lowest sea temperatures during the month were 86.0°F and 84.6°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:
2025
2024
2023
The average sea water temperature in July of 2025 was 85.0°F. The highest and lowest sea temperatures during the month were 86.4°F and 83.1°F.
current
weather
weather
| Hoi An |
weather in
January
January
| 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: 08:37
December 28, sunday
0900
70°F
S
4 mph
4 mph
1200
72°F
SW
6 mph
6 mph
1500
72°F
SW
6 mph
6 mph
1800
70°F
W
4 mph
4 mph
2100
70°F
NW
4 mph
4 mph
December 29, monday
0000
70°F
NW
3 mph
3 mph
0300
70°F
NW
3 mph
3 mph
0600
68°F
NW
5 mph
5 mph
