Weather in Cat Ba Island: December
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Average day temperature: | 69.3°F |
| Average night temperature: | 64.7°F | |
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Sea water temperature: | 71.6°F |
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Number of sunny days: | 9 days |
| Day length: | 10.9 - 11.0 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.9 in. | |
| more information | ||
forecast
| Cat Ba Island |
temperature
| Cat Ba Island |
Air temperature in December, °F
The highest day temperature during December of 2025 was 74°F. At the same time the lowest night temperature was 59°F. Daily and nightly averages during December were 69.7°F and 66.6°F.
Sea water temperature in Cat Ba Island in December, °F
The average sea water temperature in December of 2025 was 71.9°F. The highest and lowest sea temperatures during the month were 73.4°F and 69.8°F.
Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in Cat Ba Island in December is 0.7 in. Other months of the year show relatively similar values.
The average wind speed value in December is 9.0 mph
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 4.7.
Best time for vacation in Cat Ba Island
Cat Ba Island on a weather map
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