26.08
wed
wed
Day
84°F
E 11 mph
Precip.
58%
58%
Night
81°F
E 10 mph
Precip.
72%
72%
27.08
thu
thu
Day
86°F
NE 4 mph
Precip.
22%
22%
Night
81°F
NE 4 mph
Precip.
76%
76%
28.08
fri
fri
Day
84°F
E 5 mph
Precip.
40%
40%
Night
84°F
NE 7 mph
Precip.
69%
69%
29.08
sat
sat
Day
90°F
E 7 mph
Precip.
59%
59%
Night
82°F
E 6 mph
Precip.
44%
44%
30.08
sun
sun
Day
79°F
E 9 mph
Precip.
70%
70%
Night
79°F
SE 9 mph
Precip.
45%
45%
31.08
mon
mon
Day
79°F
NE 14 mph
Precip.
36%
36%
Night
77°F
SE 12 mph
Precip.
36%
36%
01.09
tue
tue
Day
84°F
SE 4 mph
Precip.
16%
16%
Night
81°F
E 5 mph
Precip.
34%
34%
sea water
temperature
temperature
| Cat Ba Island |
monthly
weather
weather
| Cat Ba Island |
current
weather
weather
| Cat Ba Island |
14 days
forecast
forecast
| Cat Ba Island |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 86.4°F. The highest and lowest sea temperatures during the month were 88.2°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 85.7°F. The highest and lowest sea temperatures during the month were 87.3°F and 84.0°F.
Air temperature in Cat Ba Island, °F
Precipitation total in Cat Ba Island, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Cat Ba Island
Cat Ba Island on a weather map
Places in Vietnam:
Name
°F
24 Hours Forecast
Cat Ba Island
Local time: 17:38
August 26, wednesday
1800
82°F
E
10 mph
10 mph
2100
82°F
E
12 mph
12 mph
August 27, thursday
0000
81°F
E
10 mph
10 mph
0300
81°F
E
10 mph
10 mph
0600
81°F
E
7 mph
7 mph
0900
82°F
SE
4 mph
4 mph
1200
86°F
NE
4 mph
4 mph
1500
84°F
N
5 mph
5 mph
