Current sea water temperature:
+70.2°F
| Minimum sea water temperature in December: | 78.3°F |
| Maximum sea water temperature in December: | 64.6°F |
| Average sea water temperature in December: | 71.2°F |
| more information | |
14 days
forecast
forecast
| Ha Long |
monthly
weather
weather
| Ha Long |
Sea water temperature for the last 10 days:
| December 17 | 70.2°F | December 12 | 71.6°F |
| December 16 | 70.2°F | December 11 | 71.8°F |
| December 15 | 71.2°F | December 10 | 72.5°F |
| December 14 | 71.2°F | December 9 | 71.8°F |
| December 13 | 71.4°F | December 8 | 71.6°F |
Monthly sea water temperature, °F
When is the warmest sea in Ha Long?
Based on the data about daily sea water temperature for the last three years the warmest sea in Ha Long was noticed in July, August and June.
Monthly Sea Temperatures in Ha Long, °F
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 86.8°F. The highest and lowest sea temperatures during the month were 89.1°F and 84.7°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 86.8°F. The highest and lowest sea temperatures during the month were 88.3°F and 84.4°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 85.4°F. The highest and lowest sea temperatures during the month were 86.9°F and 82.8°F.
current
weather
weather
| Ha Long |
weather in
December
December
| Ha Long |
Best time for vacation in Ha Long
Ha Long on a weather map
Places in Vietnam:
Name
°F
24 Hours Forecast
Ha Long
Local time: 04:42
December 18, thursday
0600
64°F
SW
4 mph
4 mph
0900
70°F
SW
3 mph
3 mph
1200
73°F
W
6 mph
6 mph
1500
73°F
W
6 mph
6 mph
1800
66°F
W
6 mph
6 mph
2100
64°F
SW
4 mph
4 mph
December 19, friday
0000
64°F
SW
5 mph
5 mph
0300
63°F
SW
5 mph
5 mph
