Cancún is rarely comfortable to be outside at midday. It comes closest in late January, and even then it is often wet. For sun, aim for late January to early May.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
The sun season here runs from late January to early May, with a second spell from November to early January. It peaks in late November, at 70. The weakest stretch is from mid July to mid August, when it drops to 20, mostly because it is too hot. The clearest skies come in April, when the sky is typically 65% covered at midday (often cloudy).
Cancún never quite rates Good for being outside. It comes closest in late January, at 50, mostly because it is often wet. Avoid mid May to mid October for this: it falls to 0, mostly because it is too hot.
Walking is not what Cancún is for: the Active outdoors rating tops out at 18, mostly because it is too warm.
The year, measured
The average temperature in Cancún over the whole year is 26°C. July is the hottest month, with highs of about 32°C; January is the coldest, with lows of about 21°C. Cancún has no sharply defined rainy season: the chance of rain on a given day runs from 53% in May, the driest month, to 67% in July, the wettest. Winds in Cancún are highest in April, averaging 4.0 m/s (14 km/h), and lightest in September, at 2.2 m/s (8 km/h). The prevailing wind is from the E. The clearest skies in Cancún come in February, when the sky is typically 49% covered; June is the cloudiest month, at 66%.
Month by month Cancún climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | 27°C | 21°C | 27°C | 54% | 58% | 3.0 m/s | 47 | 56 | 15 |
| February | 28°C | 22°C | 28°C | 61% | 49% | 3.5 m/s | 41 | 62 | 11 |
| March | 29°C | 23°C | 29°C | 55% | 51% | 3.9 m/s | 34 | 65 | 5 |
| April | 30°C | 24°C | 30°C | 61% | 52% | 4.0 m/s | 17 | 64 | 2 |
| May | 31°C | 26°C | 32°C | 53% | 58% | 3.9 m/s | 4 | 52 | 0 |
| June | 31°C | 26°C | 33°C | 59% | 66% | 3.5 m/s | 2 | 40 | 0 |
| July | 32°C | 26°C | 35°C | 67% | 59% | 2.6 m/s | 0 | 25 | 0 |
| August | 31°C | 26°C | 35°C | 63% | 62% | 2.4 m/s | 1 | 23 | 0 |
| September | 31°C | 25°C | 35°C | 63% | 64% | 2.2 m/s | 1 | 26 | 0 |
| October | 30°C | 24°C | 33°C | 65% | 63% | 2.3 m/s | 5 | 44 | 0 |
| November | 28°C | 23°C | 31°C | 65% | 56% | 2.4 m/s | 15 | 63 | 1 |
| December | 27°C | 22°C | 29°C | 58% | 55% | 2.7 m/s | 32 | 61 | 7 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Cancún weather by season
Year round, Cancún has days of about 27°C at their warmest in January, its coolest month, and 32°C in July, its warmest; the coolest hours of the day run from 21°C to 26°C through the year, and the average temperature over the year is 26°C around the clock. Rain is most likely around July and least likely around May. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Cancún weather in winterDecember to February
Winter in Cancún has typical daily highs of about 27°C and lows of about 21°C, with a 58% chance of rain on a given day.
Cancún weather in springMarch to May
Spring in Cancún has typical daily highs of about 30°C and lows of about 24°C, with a 57% chance of rain on a given day.
Cancún weather in summerJune to August
Summer in Cancún has typical daily highs of about 31°C and lows of about 26°C, with a 63% chance of rain on a given day.
Cancún weather in autumnSeptember to November
Autumn in Cancún has typical daily highs of about 30°C and lows of about 24°C, with a 64% chance of rain on a given day.
When is the rainy season in Cancún?
Cancún has no sharply defined rainy season: the chance of rain on a given day runs from 53% in May, the driest month, to 67% in July, the wettest.
What time of year is Cancún windiest?
Winds in Cancún are highest in April, averaging 4.0 m/s (14 km/h), and lightest in September, at 2.2 m/s (8 km/h). The prevailing wind is from the E.
What is the average temperature in Cancún year round?
The average temperature in Cancún over the whole year is 26°C. July is the hottest month, with highs of about 32°C; January is the coldest, with lows of about 21°C.
Where to go instead in early July, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.