Cancún weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Excellent
Best time to visit: July, November – May
What is the weather like in Cancún in May?
In May, Cancún is hot: daytime highs average 29 °C, and even at night it stays warm at around 26 °C. The sea averages 27.9 °C – lovely and warm for swimming. The sun shines for around 9 hours a day. Rain is frequent, with about 12 rainy days and 80 mm in total. On about 7 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is an excellent month for a holiday in Cancún.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 13 h 8 min06:10 – 19:17
- UV index
- 12 · extremeclear sky, noon (estimate)
- Muggy days
- 30 daysdew point 18 °C or more
- Wind
- 19 km/haverage daily peak
- Cloud cover
- 44 %on average
- Hot days
- 7 days30 °C or more
- Time zone
- UTC−5America/Cancun
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %98 %
- Few rainy daysweight 20 %44 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in May
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Cancún in May: quick answers
Is Cancún hot in May?
Yes. In May, Cancún is hot: daytime highs average 29 °C and nights stay around 26 °C. On about 7 days the thermometer climbs to 30 °C or more.
Can you swim in Cancún in May?
Yes. In May the sea averages 27.9 °C – lovely and warm for swimming.
Does it rain much in Cancún in May?
Rain is frequent, with about 12 rainy days and 80 mm in total.
Cancún month by month
The whole year in CancúnAll destinations: Mexico
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)