Gampaha Weather in December

Gampaha in December averages 31°C (88°F) during the day and 23°C (73°F) at night. December is part of the rainy season, so frequent rainfall is typical.

Rainfall in Gampaha in December

Gampaha is in the rainy season in December, with rain on around 10 days and an average of 172 mm (6.8 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.

Temperature in Gampaha in December

In December, expect very high temperatures in Gampaha, with highs of 31°C (88°F) and lows of 23°C (73°F) at night. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. With lows around 23°C (73°F), the nights are warm enough that a sheet is usually all you need for bedding.

Sunshine in Gampaha in December

Enjoy a sunny month with about 217 hours of sunshine, even though this month falls in the wet season. There is still enough sun to enjoy the outdoors.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and December typically offer the best weather for Gampaha.

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• January
• February
• March
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• May
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• August

• September
• October
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For a detailed overview over the year and the best time to visit Sri Lanka, check out our Gampaha's climate page.

Gampaha Temperature in December

Min Temperature 23°C (73°F)  

Max Temperature 31°C (88°F)  

Chance of Rain 34%  

Precipitation 172 mm (6.8 in)  

Rainy days 10 days  

Humidity 72% *  

Sunshine 217 hours *  

Percentage Sunshine *  

* Data from: Colombo, Sri Lanka (25 KM, 15 Miles).

What to Wear in Gampaha in December

Warm temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Gampaha in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

8/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Sri Lanka, check out our Gampaha's climate page.

More climate data for Gampaha

Temperature Rainfall Sunshine Humidity

See the full Gampaha climate overview or explore weather in Sri Lanka.