Rajagiriya Weather in December

December in Rajagiriya brings very high temperatures around 31°C (88°F) during the day, dropping to 24°C (75°F) at night, and as part of the rainy season, heavy rainfall is common.

Rainfall in Rajagiriya in December

As part of the rainy season, Rajagiriya sees around 10 days of rain in December, with an average of 186 mm (7.3 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.

Temperature in Rajagiriya in December

Daytime temperatures in Rajagiriya reach 31°C (88°F) in December, dropping to 24°C (75°F) at night. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With lows around 24°C (75°F), the nights are warm enough that a sheet is usually all you need for bedding.

Sunshine in Rajagiriya in December

The month enjoys around 217 hours of sunshine. The wet weather tends to wait until afternoon or evening to arrive, leaving the first half of most days dry and sunny.

Wind Speed in Rajagiriya in December

December has wind speeds averaging 1 m/s (2 knots). You can expect very gentle conditions with light air movement on typical days. Since this is an average, daily weather varies from perfectly still moments to some breezier days.

Average water temperature in December

At 27°C (81°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.

December in Rajagiriya can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

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• January
• February
• March
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• May
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• August

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• October
• November
• December

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

Rajagiriya Temperature in December

Min Temperature 24°C (75°F)  

Max Temperature 31°C (88°F)  

Water Temperature 27°C (81°F) *  

Chance of Rain 34%  

Precipitation 186 mm (7.3 in)  

Rainy days 10 days  

Humidity 72% *  

Windspeed 1 m/s (2 knots) *  

Sunshine 217 hours *  

Percentage Sunshine *  

* Data from: Colombo, Sri Lanka (3 KM, 2 Miles).

What to Wear in Rajagiriya in December

Warm weather calls for comfortable, breathable clothing in December. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. The water temperature sits at about 27°C (81°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Rajagiriya 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 Rajagiriya's climate page.

More climate data for Rajagiriya

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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