Arugam Bay Weather in December

December in Arugam Bay brings high temperatures, with highs of 29°C (84°F) and nights dropping to 25°C (77°F). It's the rainiest month of the year, so come prepared with waterproof gear.

Rainfall in Arugam Bay in December

Prepare for the heaviest rain of the year this month, which often comes in heavy showers. A poncho is a smart choice to stay dry. You can expect rain on around 12 days based on historical patterns, with 295 mm (12 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Arugam Bay in December

If you're visiting Arugam Bay in December, expect highs of 29°C (84°F) and overnight lows around 25°C (77°F). This kind of day-to-night contrast is typical for this time of year. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.

Sunshine in Arugam Bay in December

Enjoy a sunny month with about 218 hours of sunshine, the clear skies make Arugam Bay even more beautiful.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Arugam Bay. Our weather planner can help you explore destinations with more pleasant weather conditions.

Select a Month

Check the conditions for any month of the year.

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

Arugam Bay Temperature in December

Min Temperature 25°C (77°F)

Max Temperature 29°C (84°F)

Chance of Rain 39%

Precipitation 295 mm (12 in)

Rainy days 12 days

Humidity 76% *

Sunshine 218 hours *

Percentage Sunshine *

* Data from: Yala National Park, Sri Lanka (51 KM, 32 Miles).

Historical weather for Arugam Bay in December

Browse day-by-day weather records for Arugam Bay spanning 21 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Arugam Bay historical weather extremes in December

Based on 19 years of weather observations in Arugam Bay between 2006 and 2025, these are the recorded extremes.

The hottest December day on record in Arugam Bay reached 34°C (93°F) (December 11, 2024).
On December 26, 2014, Arugam Bay saw its coldest December day with temperatures maxing out at 25°C (77°F).
The coldest night in December in Arugam Bay was on December 17, 2012, with a minimum of 18°C (64°F).
The heaviest December precipitation occurred on December 26, 2014, when 175 mm (6.9 in) of precipitation fell.

Best Places in Sri Lanka in December

Find out more about the weather in Sri Lanka and which places have the best travel conditions in this month. See all of Sri Lanka in December →

Weather conditions Weather

Temperatures

Precipitation

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Legend

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Arugam Bay 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Arugam Bay 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.

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

More climate data for Arugam Bay

Temperature Rainfall Sunshine Humidity

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