Current Sea Water Temperature:
+91.2°F
| Maximum Sea Water Temperature in July: | 95.6°F |
| Minimum Sea Water Temperature in July: | 87.0°F |
| Average water temperature in July: | 90.9°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| July 16 | 91.2°F | July 11 | 89.6°F |
| July 15 | 91.8°F | July 10 | 89.6°F |
| July 14 | 91.2°F | July 09 | 89.4°F |
| July 13 | 90.6°F | July 08 | 89.2°F |
| July 12 | 89.6°F | July 07 | 90.0°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 2026 for Ha Long was 90.5°F. The maximum and minimum values were 89.2°F and 91.8°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 2026 for Ha Long was 92.1°F. The maximum and minimum values were 90.4°F and 93.6°F respectively.
Vietnam Resorts:
NAME
F°
| Cam Ranh | ![]() |
+82 |
| Cat Ba Island | ![]() |
+86 |
| Da Lat | ![]() |
+66 |
| Da Nang | ![]() |
+84 |
| Doc Let Beach | ![]() |
+80 |
| Ha Long | ![]() |
+84 |
| Ha Noi | ![]() |
+86 |
| Ho Chi Minh | ![]() |
+82 |
| Hoi An | ![]() |
+84 |
| Mui Ne | ![]() |
+80 |
| Nha Trang | ![]() |
+78 |
| Phan Rang | ![]() |
+82 |
| Phan Thiet | ![]() |
+80 |
| Phu Quoc | ![]() |
+84 |
| Vinpearl | ![]() |
+80 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Ha Long
Local time: 01:36
17 jul, friday
| 0300 | ![]() |
84°F | NE 7 mph |
| 0600 | ![]() |
84°F | NE 5 mph |
| 0900 | ![]() |
88°F | NE 5 mph |
| 1200 | ![]() |
92°F | NE 5 mph |
| 1500 | ![]() |
90°F | N 8 mph |
| 1800 | ![]() |
86°F | N 8 mph |
| 2100 | ![]() |
84°F | N 7 mph |
18 jul, saturday
| 0000 | ![]() |
84°F | N 5 mph |






























