World Resorts Vietnam Cat Ba Island Weather

Cat Ba Island 7 Days Forecast

17.05
sun
Day
86°F
W 14 mph
Precip.
0%
Night
81°F
W 5 mph
Precip.
100%
18.05
mon
Day
79°F
N 12 mph
Precip.
100%
Night
79°F
NW 7 mph
Precip.
100%
19.05
tue
Day
79°F
NW 7 mph
Precip.
100%
Night
79°F
W 7 mph
Precip.
100%
20.05
wed
Day
81°F
NW 9 mph
Precip.
85%
Night
79°F
NW 8 mph
Precip.
100%
21.05
thu
Day
81°F
NW 10 mph
Precip.
100%
Night
81°F
N 11 mph
Precip.
100%
22.05
fri
Day
82°F
N 9 mph
Precip.
100%
Night
81°F
NW 7 mph
Precip.
100%
23.05
sat
Day
86°F
N 11 mph
Precip.
0%
Night
82°F
N 10 mph
Precip.
0%

Sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 81.5°F. The highest and lowest sea temperatures during the month were 84.7°F and 79.7°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 88.9 °F
July 88.9 °F
June 88.2 °F
Warmest sea temp:
July 86.8 °F
August 86.6 °F
June 86.3 °F
Coldest months:
January 66.9 °F
February 68.3 °F
December 69.3 °F
Rainiest months:
July 15 days
August 14 days
June 12 days
Windiest months:
June 10.6 mph
July 10.1 mph
October 9.7 mph

Cat Ba Island on a weather map

Current weather
09:03
Cat Ba Island
+84°F
W 12 mph
Feels like: +93°F
Precip.: 77%
Places in Vietnam:
Name
°F
Vinpearl
+88°F
Vung Tau
+88°F
Da Lat
+72°F
Da Nang
+88°F
Doc Let Beach
+88°F
Cam Ranh
+88°F
Cat Ba Island
+84°F
Mui Ne
+88°F
Nha Trang
+88°F
Phan Thiet
+88°F
Phu Quoc
+86°F
Ha Noi
+82°F
Ha Long
+84°F
Hoi An
+88°F
Ho Chi Minh
+90°F
all places
24 Hours Forecast
Cat Ba Island
Local time: 09:03
May 17, sunday
1200
86°F
W
14 mph
1500
86°F
W
12 mph
1800
82°F
W
12 mph
2100
81°F
W
11 mph
May 18, monday
0000
81°F
W
5 mph
0300
81°F
NW
6 mph
0600
81°F
NW
7 mph
0900
79°F
NW
4 mph
Units of measurement: °C / °F