World Resorts Vietnam Ha Long Weather

Ha Long Sea Temperature in May

Average sea water temperature in May:
+82.2°F
Minimum sea water temperature in May: 90.1°F
Maximum sea water temperature in May: 76.3°F

Daily sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 83.9°F. The highest and lowest sea temperatures during the month were 90.1°F and 80.4°F.

Monthly sea water temperature in Ha Long, °F

Which Vietnam resorts have warmest sea in May?

Place name May 2026 May 2025
Phu Quoc 87.6°F 87.9°F
Doc Let Beach 86.7°F 86.3°F
Cam Ranh 86.6°F 85.4°F
Vung Tau 86.4°F 86.4°F
Phan Thiet 86.2°F 85.6°F
Mui Ne 86.2°F 85.4°F
Ke Ga 86.1°F 85.6°F
Con Dao 86.1°F 85.6°F
Ho Chi Minh 86.0°F 86.1°F
Hue 86.0°F 82.5°F
Phan Rang 85.9°F 84.2°F
Nha Trang 85.6°F 85.2°F
Vinpearl 85.2°F 84.8°F
Thanh Hoa 84.1°F 82.2°F
Ha Long 83.9°F 81.6°F
Tuan Chau 83.8°F 81.6°F
Cat Ba Island 83.8°F 81.6°F
Hai Phong 83.1°F 81.4°F
Da Nang 82.6°F 81.8°F
Hoi An 81.8°F 81.4°F

Best time for vacation in Ha Long

Sunniest months:
October 13 days
September 12 days
August 11 days
Warmest months:
July 89.0 °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 9.6 mph
October 9.3 mph

Ha Long on a weather map

Ha Long
+90°F
NE 7 mph
Feels like: +102°F
Precip.: 36%
Places in Vietnam:
Name
°F
+90°F
+75°F
+86°F
+90°F
+88°F
+88°F
+86°F
+90°F
+88°F
+86°F
+82°F
+90°F
+90°F
+86°F
+90°F
24 Hours Forecast
Ha Long
Local time: 11:13
July 16, thursday
1200
90°F
NE
7 mph
1500
88°F
N
9 mph
1800
86°F
NE
5 mph
2100
82°F
NE
4 mph
July 17, friday
0000
81°F
N
6 mph
0300
81°F
NE
6 mph
0600
81°F
NE
4 mph
0900
84°F
NE
6 mph
Units of measurement: °C / °F