Trincomalee in december: average Weather, Temperature and Climate
Weather in Trincomalee in december 2026
The weather in Trincomalee in the month of december comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout december
good weather UV index: 6
Weather at 6am
77°F
Partly Cloudy
39% of time
22%
20%
13%
Weather at 12pm
85°F
Moderate rain at times
49% of time
21%
19%
11%
Weather at 6pm
74°F
Moderate rain at times
32% of time
25%
22%
12%
Weather at 3am
72°F
52%
15%
12%
11%
Evolution of daily average temperature and precipitation in Trincomalee in december
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Trincomalee in december.
The climate of Trincomalee in december is good
The climate in december in Trincomalee is wet (with 9.5in of precipitation over 12 days). The situation is deteriorating compared to the previous month since in november there is an average of 12.2in of precipitation over 16 days.
The climate quite pleasant in that locality december. The high seasonal norm is 85°F. The minimum is 77°F. Thus, the mean temperature average in december in Trincomalee is 81°F. These temperatures are far removed from those records observed in Trincomalee in december with a maximum record of 94°F in 2016 and a minimum record of 67°F in 2021. You can expect to have about 13 days with temperatures up to 86°F, or 42 of the month.
In december in Trincomalee, the days on average last 11:38. The sun rises at 06:11 and sets at 17:49.
With proper weather, this month is okay (but not good) to go in this city.
Seasonal average climate and temperature of Trincomalee in december
Check below seasonal norms These datas are compiled from the weather statements of the past years of december.
| December | |||||
| Outside temperature | |||||
| Average temperature | 81°F | ||||
| Highest temperature | 85°F | ||||
| Lowest temperature | 77°F | ||||
| Highest record temperature | 94°F (2016) | ||||
| Lowest record temperature | 67°F (2021) | ||||
| Number of days at +86°F | 13 day(s) (42%) | ||||
| Number of days at +65°F | 31 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 83°F | ||||
| Lowest sea temperature | 80°F | ||||
| Highest sea temperature | 85°F | ||||
| Wind | |||||
| Wind speed | 15km/h | ||||
| Wind temperature | 77°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 9.5in | ||||
| Number of days with rainfall | 12 day(s) (37%) | ||||
| Record daily rainfall | 7.7in (2020) | ||||
| Other climate data | |||||
| Humidity | 85% | ||||
| Visibility | 7.7km | ||||
| Cloud cover | 53% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 8 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:11 | ||||
| Time of sunset | 17:49 | ||||
| Length of day | 11:38 | ||||
| Our opinion about the weather in december | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last december?
Here is the day by day recorded weather in Trincomalee in december 2025:
70°F to 85°F
70°F to 86°F
72°F to 88°F
72°F to 86°F
72°F to 85°F
70°F to 85°F
72°F to 85°F
72°F to 85°F
72°F to 74°F
72°F to 79°F
72°F to 79°F
72°F to 77°F
70°F to 77°F
72°F to 81°F
70°F to 85°F
72°F to 81°F
72°F to 83°F
72°F to 79°F
72°F to 83°F
68°F to 79°F
68°F to 81°F
72°F to 77°F
68°F to 81°F
70°F to 83°F
67°F to 83°F
67°F to 85°F
70°F to 79°F
68°F to 83°F
72°F to 81°F
72°F to 79°F
74°F to 79°F
Map: other cities in Sri Lanka in december
Cities near Trincomalee:
| Uppuveli in december | good weather |
| Kallara beach (Thiriyai) in december | good weather |
| Arisimale Beach in december | good weather |
| Vakarai in december | very bad weather |
| Polonnaruwa in december | good weather |
| Kalkudah in december | very bad weather |
| Vavuniya in december | good weather |
| Mullaitivu in december | tolerable weather |
| Anuradhapura in december | good weather |
| Dambulla in december | good weather |
| Maduru Oya National Park in december | very bad weather |
| Batticaloa in december | very bad weather |
Click over cities on the map for information about the weather in december.
Trincomalee
perfect weather
good
tolerable
bad
very bad
Weather data for Trincomalee in december:
Weather data for Trincomalee for december are derived from an average of the weather forecast since 2009 in Trincomalee. There is a margin of error and these forecasts are to be considered as general information only. The weather in Trincomalee can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Trincomalee.