AU
Level 2Exercise increased caution
Exercise increased caution
December is a challenging month for Trincomalee overall inside Sri Lanka, with cooler than the yearly mean by 3.2°C. The safety bulletins below apply.
Free-tier default preferences.
the east coast's season is the mirror image of the south's — when one shuts, the other opens
Sources: journalofsrilanka.com, wwhandbook.iwc.int
Opening seasons are checked by hand against the operators and parks themselves, not derived from the climate figures on this page. Last reviewed 2026-08-28. Dates move — confirm before you book.
| Month | Average daytime high (°C) |
|---|---|
| January | 28.3 |
| February | 29.3 |
| March | 31.2 |
| April | 33.4 |
| May | 33.6 |
| June | 34.3 |
| July | 34.2 |
| August | 33.8 |
| September | 33.5 |
| October | 31.8 |
| November | 29.5 |
| December | 28.6 |
Exercise increased caution
Exercise normal precautions
Exercise increased caution
Exercise increased caution
Plan a December trip to Trincomalee.
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