Cancun weather in January
Cancun averages 26°C by day and 22°C at night in January, with the sea at 27°C and about 82 mm of rain in the month.
Day
26°C
Night
22°C
Sea
27°C
Rain
82 mm
Flight from London
10h
What January feels like
January is hot in Cancun: proper beach weather.
The sea is warm at 27°C: comfortable for long swims.
Expect some rainy spells: about 82 mm falls in the month.
That is 19°C warmer than an average January day in London.
Of the 56 sun destinations we track, Cancun is the #23 warmest in January.
Want it warmer in January?
These are hotter than Cancun this month for at most an hour and a half more flying:
Cancun weather by month
January is highlighted. Compare with December and February, 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 January: quick answers
Is Cancun hot in January?
January is hot in Cancun: proper beach weather. Average highs are 26°C and lows 22°C.
Can you swim in Cancun in January?
The sea is warm at 27°C: comfortable for long swims.
Does it rain in Cancun in January?
Expect some rainy spells: about 82 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 January for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in January 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 January?
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.
