December in Trincomalee averages 28C by day and 24C at night, with 239 mm of rain over about 23 wet days. It is the 3rd wettest month of the year. December marks the return of peak season conditions to Trincomalee. Excellent weather, calm seas, and perfect temperatures make this a practical month, though early booking is essential as tourist numbers surge.
What to Expect
| Detail | Info |
|---|---|
| Temperature | 28C by day, 24C at night |
| Rainfall | 239 mm, about 23 wet days |
Averages for 2015 to 2024 from the Open-Meteo weather archive.
Events and Festivals
- Christmas celebrations
- Year-end temple ceremonies
- Tourist season officially begins
What to Do This Season
- Prime whale watching conditions return
- Perfect beach weather
- All water activities available
- Comfortable temple visiting weather
What to Watch Out For
- Tourist season pricing takes effect
- Accommodation books up quickly
- Whale watching tours fill fast
What to Wear
Light cotton clothing, sun protection, comfortable walking shoes
Is It Worth Visiting Now?
Yes - excellent weather returns with calm seas perfect for all activities
More on Trincomalee
Flexible on dates? Compare Trincomalee in November and Trincomalee in January. The best time to visit Trincomalee sets all twelve months side by side. For what is open and worth it, see the things to do in Trincomalee. The main Trincomalee page covers costs and transport.
We plan trips to Trincomalee and the rest of Sri Lanka. Tell us your dates and we will put a route together. Our routes are on the tours page.