Experience the tropical charm of Cancun, Mexico, where the average temperature ranges from 75°F (24°C) in winter to 86°F (30°C) in summer. Humidity hovers around 80%, making it feel even warmer. The wettest months are September and October, with an average of 10 inches (254mm) of rainfall. Visit between December and April for the best weather, less rain, and ideal conditions for exploring Mayan ruins or diving in the crystal-clear Caribbean waters. Don't miss a sunset sail on Nichupté Lagoon to truly appreciate Cancun's enchanting weather.
Today's Forecast
5-Day Forecast
Cancun Climate & Weather Averages
What is the weather really like in Cancun? Over 2015–2024, August was the hottest month with highs around 31°C, January the coolest at about 26°C, and June brought the most rain. The full month-by-month picture is in the table below.
Cancun has a tropical climate: the heat barely moves through the year, with daytime highs holding near 31°C even in the coolest months and nights rarely dipping below 22°C. What changes is the rain — the wet season builds toward June, when a month can bring around 198 mm, before the drier stretch around March takes over.
| Month | Avg High | Avg Low | Rainfall | Sunshine (h/day) | Wind (km/h) |
|---|---|---|---|---|---|
| Jan | 26° | 22° | 75 mm | 9.3 | 19 |
| Feb | 27° | 22° | 46 mm | 10.5 | 20 |
| Mar | 28° | 23° | 37 mm | 11.4 | 21 |
| Apr | 29° | 24° | 39 mm | 11.7 | 21 |
| May | 30° | 25° | 83 mm | 11.9 | 19 |
| Jun | 30° | 26° | 198 mm | 10.7 | 18 |
| Jul | 31° | 26° | 87 mm | 11.8 | 16 |
| Aug | 31° | 26° | 131 mm | 11.2 | 16 |
| Sep | 30° | 26° | 182 mm | 10.7 | 14 |
| Oct | 29° | 25° | 181 mm | 9.9 | 17 |
| Nov | 28° | 23° | 111 mm | 10.2 | 17 |
| Dec | 27° | 23° | 83 mm | 9.6 | 18 |
A warming climate: Cancun's warmest month (August) has warmed from an average high of 30°C in the 1950s to 31°C today — a shift of +1°C over roughly seventy years.
Sunshine is most generous in May, averaging about 11.9 hours a day, and thinnest in January at roughly 9.3 hours. The breeziest stretch of the year comes around March, when daily winds typically peak near 21 km/h.
Best time to visit: January–March offers the most comfortable conditions, with daytime highs around 27°C. Light, breathable clothing works year-round; add a compact umbrella for sudden downpours. For the coldest spell around January, bring warmer layers.
Cancun weather — frequently asked questions
When is the best time to visit Cancun?
Weather-wise, January–March is the sweet spot in Cancun: average daytime highs around 27°C with less rain than the June peak. Data from 2015–2024.
What is the rainiest month in Cancun?
June is on average the wettest month in Cancun, with about 198 mm of rainfall. The driest month is typically March, at around 37 mm.
Is Cancun warm all year round?
Yes. Even in the coolest month (January) daytime highs in Cancun still average 26°C, with nights around 22°C — the difference between seasons is mostly about rain, not temperature.
How hot does Cancun get in summer?
August is the hottest month, with daytime highs averaging 31°C — individual days run hotter still. Nights in August typically stay around 26°C.
What is the sunniest month in Cancun?
May, with roughly 11.9 hours of sunshine a day on average over 2015–2024. The dimmest month is January, at about 9.3 hours.
Source: Open-Meteo ERA5 archive. Averages computed from daily records.