Current Sea Water Temperature:
+91.2°F
| Maximum Sea Water Temperature in July: | 94.2°F |
| Minimum Sea Water Temperature in July: | 86.8°F |
| Average water temperature in July: | 90.8°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| July 16 | 91.2°F | July 11 | 90.2°F |
| July 15 | 91.8°F | July 10 | 89.2°F |
| July 14 | 91.2°F | July 09 | 88.8°F |
| July 13 | 90.4°F | July 08 | 89.0°F |
| July 12 | 90.0°F | July 07 | 89.6°F |
When is the Warmest Sea for Cat Ba Island?
According to our data for the last three years for Cat Ba Island the highest average sea water temperature was in July, August and June.
Average Water Temperature by Month, °F
Sea Water Temperature in July
The average sea surface temperature in July 2026 for Cat Ba Island was 90.3°F. The maximum and minimum values were 88.8°F and 91.8°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Cat Ba Island was 90.8°F. The maximum and minimum values were 87.4°F and 93.2°F respectively.
Sea Water Temperature in June
The average sea surface temperature in June 2026 for Cat Ba Island was 92.0°F. The maximum and minimum values were 89.8°F and 93.4°F respectively.
Vietnam Resorts:
NAME
F°
| Cam Ranh | ![]() |
+82 |
| Cat Ba Island | ![]() |
+86 |
| Da Lat | ![]() |
+66 |
| Da Nang | ![]() |
+84 |
| Doc Let Beach | ![]() |
+80 |
| Ha Long | ![]() |
+84 |
| Ha Noi | ![]() |
+86 |
| Ho Chi Minh | ![]() |
+82 |
| Hoi An | ![]() |
+84 |
| Mui Ne | ![]() |
+80 |
| Nha Trang | ![]() |
+78 |
| Phan Rang | ![]() |
+82 |
| Phan Thiet | ![]() |
+80 |
| Phu Quoc | ![]() |
+84 |
| Vinpearl | ![]() |
+80 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Cat Ba Island
Local time: 01:36
17 jul, friday
| 0300 | ![]() |
86°F | NE 13 mph |
| 0600 | ![]() |
86°F | NE 9 mph |
| 0900 | ![]() |
88°F | NE 7 mph |
| 1200 | ![]() |
92°F | N 7 mph |
| 1500 | ![]() |
90°F | N 11 mph |
| 1800 | ![]() |
88°F | N 13 mph |
| 2100 | ![]() |
86°F | N 14 mph |
18 jul, saturday
| 0000 | ![]() |
88°F | N 12 mph |






























