Average sea water temperature in April:
+75.1°F
| Minimum sea water temperature in April: | 84.4°F |
| Maximum sea water temperature in April: | 67.1°F |
Daily sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 79.1°F. The highest and lowest sea temperatures during the month were 82.0°F and 76.8°F.
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| Cat Ba Island |
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| Cat Ba Island |
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| Cat Ba Island |
Monthly sea water temperature in Cat Ba Island, °F
Which Vietnam resorts have warmest sea in April?
| Place name | April 2026 | April 2025 |
|---|---|---|
| Phu Quoc | 87.5°F | 86.5°F |
| Ho Chi Minh | 84.1°F | 84.6°F |
| Vung Tau | 84.0°F | 84.1°F |
| Con Dao | 83.7°F | 82.2°F |
| Ke Ga | 83.4°F | 82.9°F |
| Phan Thiet | 83.4°F | 83.4°F |
| Mui Ne | 83.4°F | 83.3°F |
| Hue | 83.2°F | 77.6°F |
| Cam Ranh | 82.3°F | 81.2°F |
| Doc Let Beach | 82.3°F | 81.2°F |
| Nha Trang | 80.6°F | 80.4°F |
| Phan Rang | 80.4°F | 80.4°F |
| Thanh Hoa | 80.3°F | 74.8°F |
| Da Nang | 80.1°F | 77.2°F |
| Vinpearl | 79.7°F | 80.1°F |
| Ha Long | 79.6°F | 73.9°F |
| Tuan Chau | 79.5°F | 74.2°F |
| Cat Ba Island | 79.1°F | 73.7°F |
| Hoi An | 78.9°F | 76.5°F |
| Hai Phong | 78.9°F | 74.2°F |
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: 05:12
April 27, monday
0600

77°F
NW
7 mph
7 mph
0900

79°F
N
9 mph
9 mph
1200

82°F
N
12 mph
12 mph
1500

81°F
N
12 mph
12 mph
1800

79°F
NW
11 mph
11 mph
2100

77°F
NW
7 mph
7 mph
April 28, tuesday
0000

77°F
NW
10 mph
10 mph
0300

77°F
N
10 mph
10 mph


























