May · Mexico
Best time to visit Isla Mujeres in May Weather, crowds & prices
Weather in Isla Mujeres in May
Average temperature 29°C, 42 mm of rain, about 31 days with 6+ hours of sunshine and 73% 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
- 42 mm
- Humidity
- 73%
- Days with 6h+ sun
- 31
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
May in Isla Mujeres scores 9.6/10 for beach and coastal travel - one of the top 12-month picks (#2). Expect around 29°C, 42 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Isla Mujeres lies off Cancún with a breezy beach, a turtle farm and calm Caribbean water.
May ranks 2nd of 12 for Isla Mujeres — one of the best windows
Days in May average 29°C (84°F) and humidity near 73% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
With around 42 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 Isla Mujeres 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 Isla Mujeres in May?
- In May, Isla Mujeres averages 29°C, 42 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 Isla Mujeres?
- 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 Isla Mujeres in May?
- Expect about 42 mm of rain in May. Average humidity is 73% and there are about 31 days with 6+ hours of sunshine.
Curated in Isla Mujeres
Tickets & experiences
Things to do in Isla Mujeres
Isla Mujeres, Mexico. Live activities and tours from GetYourGuide, matched to this destination.