SeasonMapSri Lanka in December
December is Sri Lanka's 9th-best month (rank 9 of 12): its 12 destinations average 72/100, led by Nuwara Eliya at 82 — 21°C and 19 rainy days — while Colombo is warmer at 36°C and scores 64.
#9 of 12 months for Sri Lanka · 12 destinations · updated September 2026 · climate normals from ERA5 reanalysis
Where in Sri Lanka in December
| # | Place | Type | Feels-like high | Rain | Comfort | At its best |
|---|---|---|---|---|---|---|
| 1 | Nuwara Eliya | Trekking hub | 21°C | 172 mm · 19 days | 82 tier A | — |
| 2 | Galle | Beach | 36°C | 186 mm · 22 days | 78 tier B | — |
| 3 | Mirissa | Beach | 36°C | 180 mm · 21 days | 78 tier B | — |
| 4 | Weligama | Beach | 35°C | 180 mm · 21 days | 78 tier B | — |
| 5 | Bentota | Beach | 35°C | 206 mm · 20 days | 75 tier B | — |
| 6 | Arugam Bay | Beach | 32°C | 191 mm · 20 days | 73 tier B | — |
| 7 | Ella | Trekking hub | 27°C | 167 mm · 19 days | 73 tier B | — |
| 8 | Trincomalee | Beach | 33°C | 243 mm · 21 days | 68 tier C | — |
| 9 | Kandy | City | 32°C | 161 mm · 20 days | 67 tier C | — |
| 10 | Sigiriya | City | 31°C | 166 mm · 20 days | 66 tier C | — |
| 11 | Colombo | City | 36°C | 147 mm · 16 days | 64 tier C | — |
| 12 | Anuradhapura | City | 34°C | 149 mm · 19 days | 63 tier C | — |
Comfort is SeasonMap's 0–100 score; each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. "At its best" means December is one of that place's own top three months. Feels-like highs fold in humidity, wind and sun.
What's on in Sri Lanka in December
- Christmas and New Year peak · Nuwara Eliya and 3 more places · 20 Dec – 5 Jan
- Blue whale season · Mirissa · 1 Nov – 15 Apr
- Blue whales off Mirissa · Colombo · 1 Nov – 15 Apr (usually)
- Blue whale season off Mirissa · Weligama · 1 Nov – 30 Apr (usually)
Seasons in force
Peak crowds at 5 of Sri Lanka's 6 well-known places this month.