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Weather in Gampaha for December 2026

Your guide to Gampaha weather in December - trends and predictions

    Temperatures

  • In general, the average temperature in Gampaha at the beginning of December is 28.6 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 28.9 °C by the end of December.

  • Rain 🌧️

  • Gampaha in December brings notable rainfall, with an average of 17 rainy days and a total precipitation of 69.8 mm.

Average dry days
14
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/23°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Gampaha Weather December

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Temperatures trend during December in Gampaha

See the weather trend as well as the moving average line

December weather in Gampaha day by day

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Date Weather Temperatures Rain UV More
1 Dec. Patchy rain possible
Patchy rain possible
28° /24° 0.3 mm 6
2 Dec. Partly cloudy
Partly cloudy
28° /24° 0 mm 8
3 Dec. Patchy rain possible
Patchy rain possible
28° /23° 0 mm 8
4 Dec. Patchy rain possible
Patchy rain possible
28° /23° 6.1 mm 7
5 Dec. Light rain shower
Light rain shower
28° /23° 5.1 mm 5
6 Dec. Light rain shower
Light rain shower
30° /23° 4.6 mm 6
7 Dec. Light rain shower
Light rain shower
30° /23° 7.3 mm 6
8 Dec. Patchy rain possible
Patchy rain possible
30° /23° 3.4 mm 6
9 Dec. Light rain shower
Light rain shower
28° /24° 0.3 mm 6
10 Dec. Light rain shower
Light rain shower
29° /23° 6.7 mm 5
11 Dec. Light rain shower
Light rain shower
27° /23° 2.8 mm 3
12 Dec. Light rain shower
Light rain shower
28° /23° 8.9 mm 4
13 Dec. Light rain shower
Light rain shower
28° /23° 2.6 mm 5
14 Dec. Patchy rain possible
Patchy rain possible
29° /23° 0.8 mm 7
15 Dec. Sunny
Sunny
29° /22° 0 mm 7
16 Dec. Light rain shower
Light rain shower
28° /23° 4.8 mm 6
17 Dec. Light rain shower
Light rain shower
30° /23° 3.1 mm 6
18 Dec. Patchy rain possible
Patchy rain possible
29° /24° 0.3 mm 7
19 Dec. Patchy rain possible
Patchy rain possible
30° /24° 0.1 mm 7
20 Dec. Patchy rain possible
Patchy rain possible
29° /22° 0.1 mm 7
21 Dec. Patchy rain possible
Patchy rain possible
29° /23° 0.2 mm 7
22 Dec. Patchy rain possible
Patchy rain possible
28° /23° 0 mm 8
23 Dec. Patchy rain possible
Patchy rain possible
30° /22° 0 mm 7
24 Dec. Partly cloudy
Partly cloudy
30° /23° 0 mm 7
25 Dec. Sunny
Sunny
30° /23° 0 mm 7
26 Dec. Sunny
Sunny
29° /21° 0 mm 7
27 Dec. Patchy rain possible
Patchy rain possible
29° /22° 0 mm 7
28 Dec. Partly cloudy
Partly cloudy
29° /22° 0 mm 8
29 Dec. Patchy rain possible
Patchy rain possible
29° /23° 0.2 mm 7
30 Dec. Patchy rain possible
Patchy rain possible
29° /23° 0.8 mm 6
31 Dec. Light rain shower
Light rain shower
27° /23° 11.3 mm 5
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Important Notice
Our weather forecast for Gampaha 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 forecast closer to your planned date for the most up-to-date weather information.

Gampaha in December - FAQ

What are the expected maximum and minimum temperatures in Gampaha 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 during December?
Moderate rainfall is anticipated in Gampaha during December, with a total of 69.8 mm spread over approximately 17 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Gampaha during December?
The average wind speed in Gampaha during December is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Gampaha

Explore the daily rainfall trends and prepare for Gampahas December weather 💧
Typically, Gampaha has 17 rainy days in December with a total of 69.8 mm of rainfall.

UV exposure in Gampaha during December

Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️

Quick links

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Location coordinates Where is Gampaha?

Get accurate weather forecasts for Gampaha, located at latitude 7.09 and longitude 79.993. Stay updated with localized weather information tailored for Gampaha.

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