Saint Lucia in December

December is Saint Lucia's 6th-best month (rank 6 of 12): its 2 destinations average 89/100, led by Castries at 90 — 31°C and 14 rainy days — while Soufrière trails at 88 with 45 mm of rain.

#6 of 12 months for Saint Lucia · 2 destinations · updated September 2026 · climate normals from ERA5 reanalysis

🇱🇨 Saint Lucia, month by month

89/100 in December

Where in Saint Lucia in December

#	Place	Type	Feels-like high	Rain	Comfort	At its best
1	Castries	Island	31°C	42 mm · 14 days	90 tier S	—
2	Soufrière	Beach	32°C	45 mm · 15 days	88 tier A	—

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 Saint Lucia in December

ARC finish at Rodney Bay · Castries · 25 Nov – 22 Dec
National Day and Lantern Festival · Castries · 12–13 Dec
Festival of Lights and Renewal · Soufrière · 12–13 Dec

Peak crowds at 1 of Saint Lucia's 1 well-known places this month.

Better months for Saint Lucia

March · 92/100 February · 91/100 April · 91/100 Weakest: October · 82/100

← Saint Lucia in November Saint Lucia in January →Best time to visit Saint Lucia, month by month Compare: Castries vs Soufrière in December