Cancún Weather in May
May in Cancún sees daytime temperatures around 30°C (86°F) and lows of 26°C (79°F) at night. With around 90 mm (3.5 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Cancún in May
This month experiences about 7 days of rain according to historical data, averaging 90 mm (3.5 in). The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.
Temperature in Cancún in May
May in Cancún brings high temperatures, with highs of 30°C (86°F) and nights around 26°C (79°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights are warm at 26°C (79°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Cancún in May
With approximately 264 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.
Average water temperature in May
With water at 28°C (82°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, November and December typically offer the best weather for Cancún.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Cancún's climate page.
Cancún Temperature in May
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Water Temperature
28°C (82°F)
Chance of Rain
22%
Precipitation
90 mm (3.5 in)
Rainy days
7 days
Sunshine
264 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cancún typically stay consistent throughout May, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in May
Historical weather for Cancún in May
Browse day-by-day weather records for Cancún spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cancún historical weather extremes in May
Based on weather observations in Cancún between 1992 and 2026, these are the recorded extremes during May.
- The hottest May day on record in Cancún reached 39°C (102°F) (May 2, 2003).
- Cancún experienced its chilliest May day on May 9, 2001, reaching only 24°C (75°F).
- The coldest night in May in Cancún was on May 1, 2023, with a minimum of 16°C (61°F).
Best Places in Mexico in May
Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in May →
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What to Wear in Cancún in May
Warm weather calls for comfortable, breathable clothing in May. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Expect water temperatures of around 28°C (82°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Cancún in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Cancún's climate page.
Temperature Rainfall Sunshine Water Temp
See the full Cancún climate overview or explore weather in Mexico.
