Cancun weather by month
Cancun is warmest in July (31°C average high) and coolest in January (26°C). For warm, mostly dry weather, go February to April. The sea is warm enough for easy swimming all year.
Warmest month
July
31°C
Coolest month
January
26°C
Wettest month
June
197 mm
Flight from London
10h
direct, estimated
Cancun temperature by month
Tap a month for the detail and warmer alternatives.
| 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 |
When to go to Cancun
What is the best month to visit Cancun for sun?
For warm, mostly dry days, go February to April, going by our 10-year averages.
What is the hottest month in Cancun?
July averages 31°C. January is the coolest at 26°C.
When does it rain most in Cancun?
June, with about 197 mm of rain.
When is the sea warm enough to swim in Cancun?
all year, when the sea averages 21°C or more.
Planning the trip? Start with our 3-day Cancun itinerary, and see the best time to visit Cancun for crowds and events.
How we measured this
Daily averages from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis); sea temperatures are 2023 to 2025 averages from the Open-Meteo marine archive. Rain is the average monthly total.
Going to Cancun?
Save the places you find on TikTok and Instagram for Cancun to one map, and Dream Trip will plan the days around them.
