Weather in Dehiwala Mount Lavinia: December
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Average day temperature: | 86.7°F |
| Average night temperature: | 76.5°F | |
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Sea water temperature: | 83.4°F |
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Number of sunny days: | 9 days |
| Day length: | 11.7 - 11.8 hours | |
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Number of rainy days: | 10 days |
| Precipitation totals: | 5.9 in. | |
| more information | ||
14 days
forecast
forecast
| Dehiwala Mount Lavinia |
sea water
temperature
temperature
| Dehiwala Mount Lavinia |
Air temperature in December, °F
Show year:
2025
2024
2023
The highest day temperature during December of 2025 was 84°F. At the same time the lowest night temperature was 73°F. Daily and nightly averages during December were 82.9°F and 74.9°F.
Sea water temperature in Dehiwala Mount Lavinia in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 82.5°F. The highest and lowest sea temperatures during the month were 83.1°F and 81.9°F.
Sunny, partly cloudy and cloudy days
Mostly all days in December are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in Dehiwala Mount Lavinia in December is 6.0 in.
Wind speed in December, mph
The average wind speed value in December is 8.1 mph
Average sunny hours
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: 6.2.
Best time for vacation in Dehiwala Mount Lavinia
Dehiwala Mount Lavinia on a weather map
Places in Sri Lanka:
Name
°F
24 Hours Forecast
Dehiwala Mount Lavinia
Local time: 13:24
April 29, wednesday
1500
88°F
N
11 mph
11 mph
1800
84°F
N
10 mph
10 mph
2100
82°F
N
9 mph
9 mph
April 30, thursday
0000
82°F
N
8 mph
8 mph
0300
81°F
N
7 mph
7 mph
0600
81°F
N
7 mph
7 mph
0900
84°F
N
7 mph
7 mph
1200
86°F
NE
6 mph
6 mph
