25.08
tue
tue
Day
90°F
S 6 mph
Precip.
15%
15%
Night
79°F
E 4 mph
Precip.
61%
61%
26.08
wed
wed
Day
90°F
NE 2 mph
Precip.
55%
55%
Night
77°F
E 4 mph
Precip.
66%
66%
27.08
thu
thu
Day
82°F
NE 3 mph
Precip.
61%
61%
Night
79°F
E 4 mph
Precip.
37%
37%
28.08
fri
fri
Day
91°F
E 4 mph
Precip.
14%
14%
Night
81°F
E 3 mph
Precip.
29%
29%
29.08
sat
sat
Day
86°F
SW 2 mph
Precip.
32%
32%
Night
79°F
SE 3 mph
Precip.
72%
72%
30.08
sun
sun
Day
81°F
SW 4 mph
Precip.
63%
63%
Night
75°F
S 4 mph
Precip.
45%
45%
31.08
mon
mon
Day
79°F
S 8 mph
Precip.
18%
18%
Night
75°F
NE 4 mph
Precip.
64%
64%
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 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
Ha Long on a weather map
Places in Vietnam:
Name
°F
24 Hours Forecast
Ha Long
Local time: 14:28
August 25, tuesday
1500
84°F
W
6 mph
6 mph
1800
82°F
SW
1 mph
1 mph
2100
81°F
NE
1 mph
1 mph
August 26, wednesday
0000
79°F
E
4 mph
4 mph
0300
77°F
E
4 mph
4 mph
0600
77°F
SE
3 mph
3 mph
0900
82°F
E
2 mph
2 mph
1200
90°F
NE
2 mph
2 mph
