World Resorts Vietnam Ha Long Weather

Ha Long sea water temperature

Current sea water temperature:
+85.6°F
Minimum sea water temperature in August: 89.1°F
Maximum sea water temperature in August: 82.6°F
Average sea water temperature in August: 86.7°F

Sea water temperature for the last 10 days:

August 25 85.6°F August 20 86.9°F
August 24 86.0°F August 19 87.8°F
August 23 86.4°F August 18 88.0°F
August 22 86.7°F August 17 87.4°F
August 21 87.3°F August 16 87.3°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:
2026
2025
2024

The average sea water temperature in July of 2026 was 86.9°F. The highest and lowest sea temperatures during the month were 88.5°F and 85.3°F.

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 86.6°F. The highest and lowest sea temperatures during the month were 88.0°F and 85.3°F.

Sea water temperature in June, °F

Show year:
2026
2025
2024

The average sea water temperature in June of 2026 was 87.9°F. The highest and lowest sea temperatures during the month were 89.2°F and 86.4°F.

Best time for vacation in Ha Long

Sunniest months:
October 13 days
September 12 days
August 11 days
Warmest months:
July 88.8 °F
August 88.5 °F
June 88.4 °F
Warmest sea temp:
July 86.8 °F
August 86.7 °F
June 86.4 °F
Coldest months:
January 67.2 °F
February 68.7 °F
December 69.5 °F
Rainiest months:
July 14 days
August 14 days
June 11 days
Windiest months:
June 9.9 mph
July 9.4 mph
October 9.3 mph

Ha Long on a weather map

Ha Long
+82°F
W 5 mph
Feels like: +90°F
Precip.: 38%
Places in Vietnam:
Name
°F
+86°F
+82°F
+64°F
+90°F
+86°F
+84°F
+84°F
+86°F
+84°F
+84°F
+81°F
+86°F
+82°F
+90°F
+90°F
24 Hours Forecast
Ha Long
Local time: 19:28
August 25, tuesday
2100
81°F
S
3 mph
August 26, wednesday
0000
79°F
S
2 mph
0300
79°F
SE
4 mph
0600
79°F
SE
3 mph
0900
81°F
E
3 mph
1200
84°F
NE
2 mph
1500
81°F
E
1 mph
1800
79°F
SW
2 mph
Units of measurement: °C / °F