Cancún vs St. Lucia

White resort building with palm trees, lounge chairs, and umbrellas line a sandy beach with turquoise water under clear blue sky.

Private villa courtyard at Serenity at Coconut Bay with turquoise plunge pool, loungers, and pink cottage beyond palm trees.

Cancún and St. Lucia, side by side: live travel advisories, our resort catalog's real guest data, and each destination's honest weather picture. Everything you need to break the tie.

Cancún guide · St. Lucia guide · How we score

By the numbers

Cancún compared with St. Lucia
Cancún	Measure	St. Lucia
Level 2: Exercise Increased Caution	U.S. travel advisory	Level 2: Exercise Increased Caution
28 (better)	Resorts in our catalog	16
★ 4.6 (better)	Average guest rating	★ 4.5
$39–$349/night pp (better)	Nightly rates	$89–$810/night pp
11 of 28	Adults-only resorts	8 of 16
In the hurricane belt	Hurricane exposure	In the hurricane belt
June–October, heaviest September–October	Rainy season	June–November, heaviest September–October
December–April	Sweet spot	December–April
~2–4.5h from most US hubs	Flight time	~4.5–5h from the US East Coast
Mexican peso; USD widely accepted in the hotel zones	Currency	East Caribbean dollar; USD widely accepted

Advisory levels sync from travel.state.gov; catalog figures reflect the resorts we've researched, not every hotel in the country. A marked row is one we are willing to call; rows without a mark are a matter of taste, or we have no comparable figure for both sides.

On the map

Cancún

St. Lucia

Weather, month by month

Month-by-month average high temperature and rainfall for Cancún and St. Lucia
Measure	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cancún · high °F	82	83	85	87	89	90	90	91	89	87	84	82
St. Lucia · high °F	84	84	85	87	88	88	88	88	88	87	86	84
Cancún · rain (in)	3.5	2.0	1.5	1.5	4.0	6.5	4.0	4.5	8.5	8.5	4.0	3.5
St. Lucia · rain (in)	3.7	2.6	2.4	3.4	4.4	7.5	8.1	8.9	8.4	9.2	7.7	5.2

Approximate climate normals for Cancún hotel zone and Northwest coast (Rodney Bay–Soufrière): planning guidance, not a forecast. A deeper tint is a higher number, read within its own row.