Cancun weather in May
Cancun averages 30°C by day and 25°C at night in May, with the sea at 27°C and about 85 mm of rain in the month.
Day
30°C
Night
25°C
Sea
27°C
Rain
85 mm
Flight from London
10h
What May feels like
May is hot in Cancun: proper beach weather.
The sea is warm at 27°C: comfortable for long swims.
Expect some rainy spells: about 85 mm falls in the month.
That is 12°C warmer than an average May day in London.
Of the 56 sun destinations we track, Cancun is the #15 warmest in May.
Want it warmer in May?
These are hotter than Cancun this month for at most an hour and a half more flying:
Cancun weather by month
May is highlighted. Compare with April and June, or see the full year in Cancun.
| Month | Day | Night | Sea | Rain |
|---|---|---|---|---|
| January | 26°C | 22°C | 27°C | 82 mm |
| February | 27°C | 23°C | 27°C | 47 mm |
| March | 28°C | 23°C | 27°C | 37 mm |
| April | 29°C | 24°C | 27°C | 40 mm |
| May | 30°C | 25°C | 27°C | 85 mm |
| June | 30°C | 26°C | 28°C | 197 mm |
| July | 31°C | 26°C | 29°C | 97 mm |
| August | 31°C | 26°C | 29°C | 132 mm |
| September | 31°C | 25°C | 29°C | 180 mm |
| October | 29°C | 25°C | 29°C | 180 mm |
| November | 28°C | 23°C | 29°C | 109 mm |
| December | 27°C | 22°C | 28°C | 82 mm |
Cancun in May: quick answers
Is Cancun hot in May?
May is hot in Cancun: proper beach weather. Average highs are 30°C and lows 25°C.
Can you swim in Cancun in May?
The sea is warm at 27°C: comfortable for long swims.
Does it rain in Cancun in May?
Expect some rainy spells: about 85 mm falls in the month.
What is the warmest month in Cancun?
July, at an average high of 31°C. The coolest is January at 26°C.
How long is the flight to Cancun from the UK?
About 10h direct from London, estimated from the 7,940 km distance. Check your airline for exact times.
Still choosing? See where is hot in May for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in May from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis). Sea temperature is the 2023 to 2025 average from the Open-Meteo marine archive. Rain is the average monthly total. Reanalysis describes an area about 25 km across, so sheltered resorts can run a degree or two warmer. Flight time is a distance-based estimate from London Heathrow.
Planning Cancun in May?
Save the restaurants, beaches and views you find on TikTok and Instagram for Cancun straight to a map, then let Dream Trip turn them into a day-by-day plan.
