World Resorts Vietnam Ha Long Weather

Ha Long 7 Days Forecast

14.09
mon
Day
77°F
SW 7 mph
Precip.
57%
Night
73°F
SW 5 mph
Precip.
62%
15.09
tue
Day
73°F
SW 4 mph
Precip.
68%
Night
73°F
SW 3 mph
Precip.
57%
16.09
wed
Day
75°F
S 3 mph
Precip.
56%
Night
73°F
S 4 mph
Precip.
45%
17.09
thu
Day
82°F
W 7 mph
Precip.
67%
Night
75°F
SW 4 mph
Precip.
62%
18.09
fri
Day
81°F
W 7 mph
Precip.
22%
Night
75°F
SW 5 mph
Precip.
27%
19.09
sat
Day
86°F
W 9 mph
Precip.
47%
Night
77°F
SW 4 mph
Precip.
16%
20.09
sun
Day
90°F
W 7 mph
Precip.
3%
Night
77°F
S 2 mph
Precip.
10%

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 85.6°F. The highest and lowest sea temperatures during the month were 87.4°F and 84.0°F.

Air temperature in Ha Long, °F

Precipitation total in Ha Long, in.

* Charts above show average data for the last 3 years.

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 88.4 °F
June 88.4 °F
Warmest sea temp:
July 86.8 °F
August 86.6 °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
+73°F
SW 6 mph
Feels like: +79°F
Precip.: 74%
Places in Vietnam:
Name
°F
+79°F
+75°F
+61°F
+77°F
+79°F
+79°F
+75°F
+79°F
+79°F
+75°F
+79°F
+72°F
+73°F
+77°F
+79°F
24 Hours Forecast
Ha Long
Local time: 21:16
September 15, tuesday
0000
73°F
SW
5 mph
0300
73°F
SW
3 mph
0600
72°F
SW
4 mph
0900
73°F
W
4 mph
1200
73°F
SW
4 mph
1500
73°F
SW
3 mph
1800
73°F
SW
3 mph
2100
73°F
SW
3 mph
Units of measurement: °C / °F