Dehiwala-Mount Lavinia
December
Weather in Dehiwala-Mount Lavinia for December 2025
Your guide to Dehiwala-Mount Lavinia weather in December - trends and predictions
In general, the average temperature in Dehiwala-Mount Lavinia at the beginning of December is 28.6 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 29.3 °C by the end of December.
Dehiwala-Mount Lavinia experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 216.4 mm.
Temperatures
Rain 🌧️
3
Dry days
28
Rainy days
0
Snow days
28°/24°
Temperatures
16 km/h
Avg max wind
82 %
Avg humidity
Dehiwala-Mount Lavinia in December average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | 2 27° | 3  28° | 4 29° | 5 29° | 6 29° | 7 29° |
| 8 29° | 9 29° | 10 29° | 11 28° | 12 28° | 13 29° | 14 29° |
| 15 28° | 16 28° | 17 28° | 18 28° | 19 28° | 20 29° | 21 29° |
| 22 29° | 23 30° | 24 29° | 25 29° | 26 29° | 27 30° | 28 28° |
| 29 30° | 30 30° | 31 29° |
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Temperatures trend during December in Dehiwala-Mount Lavinia
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. | Moderate or heavy rain shower | 29° /24° | 8.2 mm | 6 | |
| 2 Dec. | Moderate or heavy rain shower | 27° /24° | 22.3 mm | 6 | |
| 3 Dec. | Light rain shower | 28° /25° | 11.6 mm | 6 | |
| 4 Dec. | Light rain shower | 29° /24° | 18.2 mm | 6 | |
| 5 Dec. | Light rain shower | 29° /25° | 6.4 mm | 6 | |
| 6 Dec. | Patchy rain possible | 29° /24° | 3.8 mm | 6 | |
| 7 Dec. | Patchy rain possible | 29° /24° | 0.7 mm | 6 | |
| 8 Dec. | Light rain shower | 29° /24° | 7.7 mm | 6 | |
| 9 Dec. | Light rain shower | 29° /23° | 4.9 mm | 7 | |
| 10 Dec. | Light rain shower | 29° /23° | 2.1 mm | 6 | |
| 11 Dec. | Patchy rain possible | 28° /24° | 5.6 mm | 6 | |
| 12 Dec. | Light rain shower | 28° /24° | 7.9 mm | 6 | |
| 13 Dec. | Light rain shower | 29° /24° | 4 mm | 6 | |
| 14 Dec. | Moderate or heavy rain shower | 29° /24° | 15 mm | 6 | |
| 15 Dec. | Patchy rain possible | 28° /24° | 0.9 mm | 7 | |
| 16 Dec. | Light rain shower | 28° /23° | 5.8 mm | 6 | |
| 17 Dec. | Light rain shower | 28° /23° | 1.6 mm | 7 | |
| 18 Dec. | Light rain shower | 28° /24° | 7.5 mm | 6 | |
| 19 Dec. | Light rain shower | 28° /24° | 2.5 mm | 6 | |
| 20 Dec. | Light rain shower | 29° /24° | 5.8 mm | 6 | |
| 21 Dec. | Light rain shower | 29° /24° | 8.5 mm | 6 | |
| 22 Dec. | Light rain shower | 29° /24° | 7.3 mm | 6 | |
| 23 Dec. | Patchy rain possible | 30° /23° | 0.3 mm | 7 | |
| 24 Dec. | Patchy rain possible | 29° /23° | 1.7 mm | 7 | |
| 25 Dec. | Moderate or heavy rain shower | 29° /23° | 8.1 mm | 7 | |
| 26 Dec. | Moderate or heavy rain shower | 29° /22° | 8.7 mm | 7 | |
| 27 Dec. | Patchy rain possible | 30° /23° | 1.2 mm | 6 | |
| 28 Dec. | Light rain shower | 28° /23° | 5.8 mm | 6 | |
| 29 Dec. | Patchy rain possible | 30° /23° | 8.1 mm | 6 | |
| 30 Dec. | Light rain shower | 30° /23° | 5.1 mm | 6 | |
| 31 Dec. | Light rain shower | 29° /23° | 2.7 mm | 7 | |
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Important Notice
Our weather forecast for Dehiwala-Mount Lavinia in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Dehiwala-Mount Lavinia forecast closer to your planned date for the most up-to-date weather information.
Dehiwala-Mount Lavinia in December - FAQ
What are the expected maximum and minimum temperatures in Dehiwala-Mount Lavinia during December?
During December, expect a variety of temperatures with highs around 28° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Dehiwala-Mount Lavinia during December?
Significant rainfall exceeding 216.4 mm is expected in Dehiwala-Mount Lavinia during December, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Dehiwala-Mount Lavinia during December?
The average wind speed in Dehiwala-Mount Lavinia during December is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Dehiwala-Mount Lavinia
Explore the daily rainfall trends and prepare for Dehiwala-Mount Lavinias December weather 💧
UV exposure in Dehiwala-Mount Lavinia during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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