May weather forecast and climate
Cancún, Mexico

White buildings on the white sandy beach in sharp contrast of the clear blue waters on a beach in Cancún, Mexico
White buildings on the white sandy beach in sharp contrast of the clear blue waters on a beach in Cancún, Mexico
May in Cancún marks the end of autumn and dry months, and the wet season aproaches. Bring rain protectors as there is more rainfall compared to the summer months with 109.2mm (4.3") of rain. Plan and don't let the weather spoil the fun. The downpour in the 7 rainy days ends as quickly as they start.
Apply sun lotion to protect the skin from the day's heat of 33°C (91.4°F) and relish 11 hours of beautiful sunshine. The sea provides 28°C (82.4°F) of warmth, which is not exceptionally refreshing, but still good for making the most out of the trip.

What is the temperature in May in Cancún?

The average high-temperature, in May, in Cancún, is 33.5°C (92.3°F), while the average low-temperature is 23.9°C (75°F).

How many days does it rain in May in Cancún?

In May, the rain falls for 6.7 days. Throughout May, 86.9mm (3.4") of precipitation is accumulated.

How warm is the water in May in Cancún?

In May, in Cancún, Mexico, the average sea temperature is 27.7°C (81.9°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
Average temperature in May - Cancún, Mexico
  • Average high temperature in May: 33.5°C

The warmest month (with the highest average high temperature) is August (34.8°C).
The month with the lowest average high temperature is January (28.3°C).

  • Average low temperature in May: 23.9°C

The month with the highest average low temperature is July (24.8°C).
The coldest month (with the lowest average low temperature) is January (19.8°C).

Average rainfall in May - Cancún, Mexico
  • Average rainfall in May: 86.9mm

The wettest month (with the highest rainfall) is October (271.9mm).
The driest month (with the lowest rainfall) is April (41.2mm).

Average rainfall days in May - Cancún, Mexico
  • Average rainfall days in May: 6.7 days

The month with the highest number of rainy days is October (16.4 days).
The month with the lowest number of rainy days is April (4.1 days).

Average sea temperature in May - Cancún, Mexico
  • Average sea temperature in May: 27.7°C

The best month for swimming (with the highest average sea temperature) is August (29.4°C).
The coldest month (with the lowest average sea temperature) is January (25.6°C).

Average daylight in May / Average sunshine in May - Cancún, Mexico
  • Average daylight in May: 13.2h

The month with the longest days is June (Average daylight: 13.4h).
The month with shortest days is December (Average daylight: 10.9h).

  • Average sunshine in May: 8h

Months with most sunshine are March, April and May (Average sunshine: 8h).
Months with least sunshine are January, September, November and December (Average sunshine: 6).

Average UV index in May - Cancún, Mexico
  • Average UV index in May: 12

Months with the highest UV index are April, May, June, July and August (UV index 12).
Months with the lowest UV index are January and December (UV index 7).

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