Current sea water temperature:
+84.7°F
| Minimum sea water temperature in May: | 88.2°F |
| Maximum sea water temperature in May: | 76.3°F |
| Average sea water temperature in May: | 82.1°F |
| more information | |
14 days
forecast
forecast
| Ha Long |
monthly
weather
weather
| Ha Long |
Sea water temperature for the last 10 days:
| May 16 | 84.7°F | May 11 | 80.6°F |
| May 15 | 83.7°F | May 10 | 81.1°F |
| May 14 | 83.5°F | May 9 | 81.5°F |
| May 13 | 81.9°F | May 8 | 81.1°F |
| May 12 | 81.7°F | May 7 | 81.0°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
May
May
| 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: 05:14
May 17, sunday
0600
79°F
W
6 mph
6 mph
0900
84°F
W
9 mph
9 mph
1200
86°F
W
11 mph
11 mph
1500
86°F
W
10 mph
10 mph
1800
82°F
W
8 mph
8 mph
2100
81°F
W
7 mph
7 mph
May 18, monday
0000
79°F
W
3 mph
3 mph
0300
79°F
W
4 mph
4 mph
