Current Sea Water Temperature:
+85.2°F
| Maximum Sea Water Temperature in May: | 92.4°F |
| Minimum Sea Water Temperature in May: | 79.2°F |
| Average water temperature in May: | 85.7°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| May 12 | 85.2°F | May 07 | 84.4°F |
| May 11 | 84.0°F | May 06 | 85.0°F |
| May 10 | 84.6°F | May 05 | 84.8°F |
| May 09 | 85.0°F | May 04 | 84.2°F |
| May 08 | 84.6°F | May 03 | 84.0°F |
When is the Warmest Sea for Ha Long?
According to our data for the last three years for Ha Long the highest average sea water temperature was in July, August and June.
Average Water Temperature by Month, °F
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Ha Long was 90.9°F. The maximum and minimum values were 88.6°F and 93.4°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Ha Long was 90.8°F. The maximum and minimum values were 88.2°F and 92.6°F respectively.
Sea Water Temperature in June
The average sea surface temperature in June 2025 for Ha Long was 89.4°F. The maximum and minimum values were 86.4°F and 91.0°F respectively.
Vietnam Resorts:
NAME
F°
| Cam Ranh |  |
+80 |
| Da Lat | |
+68 |
| Da Nang | |
+80 |
| Doc Let Beach | |
+82 |
| Ha Long |  |
+82 |
| Ha Noi | |
+80 |
| Ho Chi Minh |  |
+84 |
| Hoi An | |
+80 |
| Mui Ne | |
+82 |
| Nha Trang | |
+80 |
| Phan Rang | |
+80 |
| Phan Thiet | |
+82 |
| Phu Quoc | |
+86 |
| Vinpearl | |
+82 |
| Vung Tau | |
+80 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Ha Long
Local time: 07:14
13 may, wednesday
| 0900 |  |
86°F | N 11 mph |
| 1200 |  |
90°F | N 11 mph |
| 1500 |  |
90°F | N 9 mph |
| 1800 | |
86°F | NW 5 mph |
| 2100 |  |
82°F | NW 2 mph |
14 may, thursday
| 0000 | |
82°F | W 2 mph |
| 0300 | |
84°F | NW 2 mph |
| 0600 | |
84°F | NW 4 mph |