Weather in Trincomalee: December
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Average day temperature: | 83.2°F |
| Average night temperature: | 76.8°F | |
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Sea water temperature: | 81.8°F |
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Number of sunny days: | 5 days |
| Day length: | 11.6 - 11.7 hours | |
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Number of rainy days: | 11 days |
| Precipitation totals: | 8.7 in. | |
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forecast
| Trincomalee |
temperature
| Trincomalee |
Air temperature in December, °F
The highest day temperature during December of 2025 was 86°F. At the same time the lowest night temperature was 75°F. Daily and nightly averages during December were 79.7°F and 77.8°F.
Sea water temperature in Trincomalee in December, °F
The average sea water temperature in December of 2025 was 81.2°F. The highest and lowest sea temperatures during the month were 82.4°F and 80.1°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 Trincomalee in December is 9.5 in. It makes december one of the most rainy months of the year.
The average wind speed value in December is 10.0 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: 4.8.
Best time for vacation in Trincomalee
Trincomalee on a weather map
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