Gampaha District (Negombo)
December
Weather in Gampaha District for December 2026
Your guide to Gampaha District weather in December - trends and predictions
The climate of Gampaha District in December is notably wet, with an average of 15 rainy days, and a total of 93.2 mm of precipitation.
Is December a good time to visit Gampaha District? check out the best time to travel to Gampaha District page.
Rain 🌧️
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16
Dry days
15
Rainy days
0
Snow days
29°/23°
Temperatures
20 km/h
Avg max wind
79 %
Avg humidity
Gampaha District Weather December
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Temperatures trend during December in Gampaha District
See the weather trend as well as the moving average line
December weather in Gampaha District day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Patchy rain possible | 28° /25° | 0.5 mm | 6 | |
| 2 Dec. |  Overcast | 28° /25° | 0 mm | 7 | |
| 3 Dec. | Overcast | 29° /24° | 0 mm | 6 | |
| 4 Dec. |  Light rain | 29° /23° | 3.1 mm | 6 | |
| 5 Dec. | Light rain | 29° /24° | 4.4 mm | 6 | |
| 6 Dec. | Patchy rain possible | 30° /24° | 2.3 mm | 7 | |
| 7 Dec. | Light rain | 30° /23° | 4.8 mm | 7 | |
| 8 Dec. | Light rain | 30° /24° | 4.8 mm | 7 | |
| 9 Dec. | Patchy rain possible | 29° /24° | 0.4 mm | 7 | |
| 10 Dec. | Light rain | 29° /23° | 3.5 mm | 6 | |
| 11 Dec. | Light rain | 28° /24° | 2.8 mm | 6 | |
| 12 Dec. |  Moderate rain | 28° /24° | 11.6 mm | 6 | |
| 13 Dec. | Light rain | 29° /24° | 5.2 mm | 6 | |
| 14 Dec. |  Moderate or heavy rain shower | 29° /24° | 7.7 mm | 6 | |
| 15 Dec. |  Partly cloudy | 29° /23° | 0 mm | 7 | |
| 16 Dec. | Light rain | 28° /23° | 3.7 mm | 6 | |
| 17 Dec. | Moderate or heavy rain shower | 29° /23° | 6.5 mm | 7 | |
| 18 Dec. | Patchy rain possible | 29° /24° | 0.8 mm | 6 | |
| 19 Dec. | Patchy rain possible | 29° /24° | 1 mm | 7 | |
| 20 Dec. | Light rain | 29° /24° | 3.3 mm | 7 | |
| 21 Dec. | Patchy rain possible | 29° /24° | 2.4 mm | 7 | |
| 22 Dec. | Patchy rain possible | 29° /24° | 1.2 mm | 7 | |
| 23 Dec. |  Sunny | 30° /23° | 0 mm | 7 | |
| 24 Dec. | Sunny | 29° /23° | 0 mm | 7 | |
| 25 Dec. | Sunny | 30° /23° | 0 mm | 7 | |
| 26 Dec. | Sunny | 29° /22° | 0 mm | 7 | |
| 27 Dec. | Moderate or heavy rain shower | 29° /23° | 5.1 mm | 7 | |
| 28 Dec. | Patchy rain possible | 29° /23° | 0.4 mm | 7 | |
| 29 Dec. | Light rain | 30° /23° | 2.7 mm | 7 | |
| 30 Dec. | Moderate or heavy rain shower | 30° /23° | 5.7 mm | 7 | |
| 31 Dec. | Light rain | 28° /24° | 9.4 mm | 6 | |
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Important Notice
Our weather forecast for Gampaha District 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 Gampaha District forecast closer to your planned date for the most up-to-date weather information.
Change Month
Gampaha District in December - FAQ
What are the expected maximum and minimum temperatures in Gampaha District during December?
During December, expect a variety of temperatures with highs around 29° and lows near 23°, suitable for diverse activities and preferences.
How much rainfall should be expected in Gampaha District during December?
Moderate rainfall is anticipated in Gampaha District during December, with a total of 93.2 mm spread over approximately 15 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Gampaha District during December?
The average wind speed in Gampaha District during December is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Gampaha District
Explore the daily rainfall trends and prepare for Gampaha Districts December weather 💧
Typically, Gampaha District has 15 rainy days in December with a total of 93.2 mm of rainfall.
UV exposure in Gampaha District during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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