Sri Lanka in december: average Weather, Temperature and Climate, Where to go?
Weather in Sri Lanka in december 2025
Below, you have access to the weather forecast for december for most popular cities in Sri Lanka. These datas are statistics for december from weather reports for many years. The percentage indicates the possibility of having the weather mentioned.
Average weather in december in Colombo
tolerable weather UV index: 7
Weather at 6am
81°F
Clear/Sunny
41% of time
28%
24%
6%
Weather at 12pm
86°F
Moderate rain at times
35% of time
31%
20%
14%
Weather at 6pm
81°F
Moderate rain at times
44% of time
26%
16%
13%
Weather at 3am
77°F
35%
33%
21%
6%
Where to go in Sri Lanka in december?
Where to go in Sri Lanka in december: destination map
Where to go in each region in december?
| Central-South of Sri Lanka (Kandy, Dambulla, Nuwara Eliya...) | 77°F to 86°F | 11 à 19 days | tolerable weather | |
| East Coast of Sri Lanka (Trincomalee, Batticaloa, Pottuvil...) | 83°F to 86°F | 12 à 19 days | 83°F | very bad weather* |
| North of Sri Lanka (Jaffna, Mullaitivu, Vavuniya...) | 83°F to 86°F | 12 à 14 days | 83°F | tolerable weather* |
| North Central of Sri Lanka (Anuradhapura, Wilpattu National Park, Polonnaruwa...) | 85°F to 86°F | 12 days | good weather* | |
| North West of Sri Lanka (Puttalam, Kurunegala, Chilaw...) | 86°F to 88°F | 11 à 14 days | 83°F | good weather* |
| Southern Coast of Sri Lanka (Galle, Tangalle, Yala National Park...) | 85°F to 88°F | 7 à 19 days | 83°F to 85°F | good weather* |
| West Coast of Sri Lanka (Colombo, Negombo, Kalutara...) | 88°F | 9 à 14 days | 83°F to 85°F | good weather* |
Where should you go in Sri Lanka in december when it comes to the weather?
Remember:
The climate in Sri Lanka in december ranges from good to very bad depending on the region and city.
Some regions see their climate improve, while for others - climatic conditions are deteriorating. The climate throughout December in Sri Lanka is, however, mediocre.
December in Colombo and the West Coast of the Island
The climate of Colombo is more clement, despite the abundance of rain because it usually occurs at night, allowing the tourists the opportunity to enjoy beautiful sunny days.
December in Jaffna and the Extreme North of the Island
The month of December is not famous for visiting Jaffna. Rainfall has increased in intensity and frequency. The sun can only make its way through a few thinnings.
December in Trincomalee and the Northeast of the Island
The weather in Sri Lanka throughout December is far from ideal - in Trincomalee, as elsewhere. The mornings are foggy and the rest of the day is rainy, most of the time.
December in Nuwara Eliya and the Central Plain
Despite the freshness of the atmosphere, the weather in Nuwara Eliya is still bad. The rains are indeed very abundant and the chance of having a magnificent sunshine is very slight.
Climate in Sri Lanka in december
Climate in Colombo in december
In the month of december, maximum temperature is 88°F and minimum temperature is 81°F (for an average temperature of 85°F). The climate is burning there in the month of december. With 9.8in over 13 days, you risk getting wet slightly throughout your vacations. But this is rather reasonably and you will not be too bothered by it.
With a correct climate, december is okay (but not the best time) for traveling in Colombo in Sri Lanka.
| December | |||
| Average temperature | 85°F | ||
| Highest temperature | 88°F | ||
| Lowest temperature | 81°F | ||
| Sea temperature | 83°F | ||
| Rainfall | 9.8in | ||
| Number of days with rainfall | 13 day(s) (43%) | ||
| Humidity | 81% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 35% | ||
| Length of day | 11:44 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Anuradhapura in december
In december, the mean temperature in Anuradhapura is 83°F (maximum temperature is 86°F and minimum temperature is 79°F). The climate nice in that locality in this month. With 9.1in over 12 days, you will experience some showers during your trip. But this is moderate and it is only of temporary showers.
With proper weather, the month of december is okay (but not the best month) for traveling in this city in Sri Lanka.
| December | |||
| Average temperature | 83°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 79°F | ||
| Rainfall | 9.1in | ||
| Number of days with rainfall | 12 day(s) (39%) | ||
| Humidity | 84% | ||
| Daily sunshine hours | 8 | ||
| Cloud cover | 50% | ||
| Length of day | 11:39 | ||
| Our opinion at whereandwhen.net | good |
Climate in Galle in december
In the month of december, the mean temperature in Galle is 83°F (maximum temperature is 86°F and minimum temperature is 81°F). The climate is very hot there in this month. With 8.2in over 13 days, rainfall can happen for your trip. But this is pretty reasonably and it is only of temporary showers.
With a correct climate, december is okay (but not good month) for traveling there in Sri Lanka.
| December | |||
| Average temperature | 83°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 81°F | ||
| Sea temperature | 83°F | ||
| Rainfall | 8.2in | ||
| Number of days with rainfall | 13 day(s) (41%) | ||
| Humidity | 81% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 36% | ||
| Length of day | 11:47 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Jaffna in december
In december, maximum temperature is 83°F and minimum temperature is 81°F (for an average temperature of 81°F). The climate good here in this month. With 12.6in over 12 days, you may find yourself often in the rain during your trip. Consider to pack clothes for rain.
With a bad climate, december is not the best time to go there.
| December | |||
| Average temperature | 81°F | ||
| Highest temperature | 83°F | ||
| Lowest temperature | 81°F | ||
| Sea temperature | 82°F | ||
| Rainfall | 12.6in | ||
| Number of days with rainfall | 12 day(s) (39%) | ||
| Humidity | 80% | ||
| Daily sunshine hours | 8 | ||
| Cloud cover | 46% | ||
| Length of day | 11:34 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Kandy in december
In december, the mean temperature in Kandy is 79°F (maximum temperature is 83°F and minimum temperature is 76°F). The climate quite good here in december. With 11.3in over 14 days, rain is to be feared throughout your journey. Remember to pack rain clothes.
With a bad climate, december is not recommended month to go in Kandy in Sri Lanka.
| December | |||
| Average temperature | 79°F | ||
| Highest temperature | 83°F | ||
| Lowest temperature | 76°F | ||
| Rainfall | 11.3in | ||
| Number of days with rainfall | 14 day(s) (47%) | ||
| Humidity | 86% | ||
| Daily sunshine hours | 8 | ||
| Cloud cover | 44% | ||
| Length of day | 11:43 | ||
| Our opinion at whereandwhen.net | tolerable |
All cities in Sri Lanka in december
| Colombo in december | tolerable weather |
| Anuradhapura in december | good weather |
| Galle in december | tolerable weather |
| Jaffna in december | tolerable weather |
| Kandy in december | tolerable weather |
| Trincomalee in december | tolerable weather |
| Batticaloa in december | very bad weather |
| Chilaw in december | good weather |
| Dambulla in december | tolerable weather |
| Kalutara in december | good weather |
| Kurunegala in december | good weather |
| Mullaitivu in december | tolerable weather |
| Negombo in december | good weather |
| Nuwara Eliya in december | tolerable weather |
| Wilpattu National Park in december | good weather |
| Yala National Park in december | good weather |
| Polonnaruwa in december | tolerable weather |
| Pottuvil in december | very bad weather |
| Puttalam in december | tolerable weather |
| Tangalle in december | good weather |
| Vavuniya in december | good weather |
Weather data for Sri Lanka in december:
Weather data for Sri Lanka in december is derived from an average of the weather forecast since 2009 in Sri Lanka. There is a margin of error and these forecasts are to be considered as general information only. The weather in Sri Lanka can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Sri Lanka.