Sri Lanka December — Coconut Tree Hill in Mirissa on the reopening south coast, palm trees against the Indian Ocean as the dry season returns

Sri Lanka · Sri Lanka

December

West and south coast re-open beautifully — Christmas peak begins, Yala is outstanding, and Galle Fort is at its most festive.

Strong option

#8 of 12 months

There are better months for Sri Lanka — see the full ranking below.

See when to go instead →

Climate

High

30°C

Low

24°C

Rain

186mm

Sun

7.5hrs/day

30-year climate normals · Open Meteo ERA5

How December scores in Sri Lanka

Weather
Excellent
Value
Below average
Crowds
Below average
Events
Good
Atmosphere
Excellent

What you gain in December

  • The west and south coast opens fully in December — Galle Fort, Mirissa, Hikkaduwa, and the south circuit are all back to excellent conditions with skies clearing progressively from the monsoon
  • Yala National Park is in its prime safari season: the post-monsoon dry period concentrates animals around water sources and the park's Sri Lankan leopard population is highly active; sunrise safaris are exceptional
  • Whale watching from Mirissa resumes for its best season — December through April is the prime blue whale and sperm whale window, and early-season boats have fewer competitors

What you sacrifice

  • Christmas and New Year weeks push prices to near-peak levels — beachfront guesthouses in Mirissa and Unawatuna, as well as Galle Fort hotels, book out weeks in advance
  • Rainfall at 186mm is still moderate in early December before easing — the season is opening but the first two weeks can still bring occasional heavy showers
  • Colombo and the main coastal route becomes noticeably busier as the high season surges; traffic on the Southern Expressway and the beach towns requires patience during holiday weeks

How December compares to July (best month)

FactorDecemberJuly
Weather
8
5
Value
3
7
Crowds
3
7

December in other destinations

Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within Sri Lanka, not across destinations. Methodology →