May · Mexico
Best time to visit Cozumel in May Weather, crowds & prices
Weather in Cozumel in May
Average temperature 29°C, 40 mm of rain, about 31 days with 6+ hours of sunshine and 77% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
9.6/10
Ranked #2 of 12 months
- Avg temp
- 29°C
- Rainfall
- 40 mm
- Humidity
- 77%
- Days with 6h+ sun
- 31
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
May in Cozumel scores 9.6/10 for beach and coastal travel - one of the top 12-month picks (#2). Expect around 29°C, 40 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Cozumel's reefs, beach clubs and quiet east side make it the Caribbean's classic dive island.
May is one of the strongest months in Cozumel (2nd)
Days in May average 29°C (83°F) and humidity near 77% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
With around 40 mm of rain, any showers tend to pass through rather than settle in; about 31 days with 6+ hours of sunshine and 13 hours of daylight fill the rest.
On our climate-comfort scale this is one of the strongest months of the year for Cozumel at 9.6/10 (2nd of 12), just behind April at 9.6/10.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
Expect peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Cozumel in May?
- In May, Cozumel averages 29°C, 40 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 9.6/10.
- Is May a good time to visit Cozumel?
- May earns a 9.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Cozumel in May?
- Expect about 40 mm of rain in May. Average humidity is 77% and there are about 31 days with 6+ hours of sunshine.
Curated in Cozumel
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Things to do in Cozumel
Cozumel, Mexico. Live activities and tours from GetYourGuide, matched to this destination.