World Resorts Vietnam Cat Ba Island Weather

Cat Ba Island 14 Days Forecast

26.08
wed
Day
84°F
E 11 mph
Precip.
58%
Night
81°F
E 10 mph
Precip.
72%
27.08
thu
Day
86°F
NE 4 mph
Precip.
22%
Night
81°F
NE 4 mph
Precip.
76%
28.08
fri
Day
84°F
E 5 mph
Precip.
40%
Night
84°F
NE 7 mph
Precip.
69%
29.08
sat
Day
90°F
E 7 mph
Precip.
59%
Night
82°F
E 6 mph
Precip.
44%
30.08
sun
Day
79°F
E 9 mph
Precip.
70%
Night
79°F
SE 9 mph
Precip.
45%
31.08
mon
Day
79°F
NE 14 mph
Precip.
36%
Night
77°F
SE 12 mph
Precip.
36%
01.09
tue
Day
84°F
SE 4 mph
Precip.
16%
Night
81°F
E 5 mph
Precip.
34%
02.09
wed
Day
86°F
S 6 mph
Precip.
2%
Night
81°F
SE 6 mph
Precip.
7%
03.09
thu
Day
86°F
SW 7 mph
Precip.
2%
Night
79°F
NE 5 mph
Precip.
6%
04.09
fri
Day
86°F
NE 3 mph
Precip.
1%
Night
79°F
NE 4 mph
Precip.
4%
05.09
sat
Day
84°F
NE 7 mph
Precip.
3%
Night
81°F
N 4 mph
Precip.
10%
06.09
sun
Day
84°F
NE 7 mph
Precip.
3%
Night
81°F
E 4 mph
Precip.
14%
07.09
mon
Day
86°F
NE 7 mph
Precip.
3%
Night
82°F
NE 5 mph
Precip.
10%
08.09
tue
Day
86°F
NE 9 mph
Precip.
8%
Night
84°F
N 6 mph
Precip.
17%

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

Sunniest months:
October 14 days
June 12 days
September 12 days
Warmest months:
August 88.8 °F
July 88.7 °F
June 88.2 °F
Warmest sea temp:
July 86.8 °F
August 86.6 °F
June 86.4 °F
Coldest months:
January 66.9 °F
February 68.3 °F
December 69.3 °F
Rainiest months:
August 14 days
July 14 days
June 12 days
Windiest months:
June 10.6 mph
July 10.0 mph
October 9.7 mph

Cat Ba Island on a weather map

Current weather
17:38
Cat Ba Island
+82°F
E 10 mph
Feels like: +93°F
Precip.: 41%
Places in Vietnam:
Name
°F
Vinpearl
+86°F
Vung Tau
+81°F
Da Lat
+64°F
Da Nang
+86°F
Doc Let Beach
+86°F
Cam Ranh
+86°F
Mui Ne
+81°F
Nha Trang
+84°F
Phan Rang
+86°F
Phan Thiet
+81°F
Phu Quoc
+81°F
Ha Noi
+81°F
Ha Long
+81°F
Hoi An
+86°F
Ho Chi Minh
+86°F
all places
24 Hours Forecast
Cat Ba Island
Local time: 17:38
August 26, wednesday
1800
82°F
E
10 mph
2100
82°F
E
12 mph
August 27, thursday
0000
81°F
E
10 mph
0300
81°F
E
10 mph
0600
81°F
E
7 mph
0900
82°F
SE
4 mph
1200
86°F
NE
4 mph
1500
84°F
N
5 mph
Units of measurement: °C / °F