Cancún Weather by Month
Yucatán Peninsula, Mexico
The best time to visit Cancún for dry, calm weather is February, March and April, when rain falls on only 6.2 to 8 days a month and storm activity is low or absent in the records. The wettest month is September, with 23 rain days. Pick a month below to see its full numbers, or use the trip odds tool on any month page for your exact dates.
Average highs run from 77.9°F in January to 86.4°F in August. Sea temperature ranges from 80.6°F in February to 86.9°F in September.
Hurricane season here runs June 1 to November 30. In the storm history we hold, October has the most recorded storm days (14 storm days since 1985). This is a look at the past, not a forecast, so book a flexible rate if you travel in season.
Cancún monthly averages
| Month | High | Low | Rain days | Rain (in) | Humidity | Sea | Storm days |
|---|---|---|---|---|---|---|---|
| January | 77.9°F | 71.6°F | 10.3 | 2.3 | 74% | 81.1°F | 0 |
| February | 79.3°F | 72.6°F | 8 | 1.7 | 73% | 80.6°F | 0 |
| March | 80.9°F | 73.8°F | 6.8 | 1.3 | 72% | 81.2°F | 0 |
| April | 83.2°F | 75.6°F | 6.2 | 1.4 | 74% | 82.1°F | 0 |
| May | 84.9°F | 77.5°F | 12.1 | 3.2 | 77% | 83.9°F | 0 |
| June | 84.9°F | 78.4°F | 18.4 | 6.8 | 82% | 85°F | 2 |
| July | 86.2°F | 79.1°F | 17 | 4.5 | 80% | 85.8°F | 6 |
| August | 86.4°F | 79.2°F | 20.5 | 5.6 | 81% | 86.6°F | 3 |
| September | 85.4°F | 78.3°F | 23 | 7.7 | 83% | 86.9°F | 5 |
| October | 83.2°F | 76.7°F | 19.5 | 7.3 | 80% | 86°F | 14 |
| November | 80.6°F | 74.5°F | 12.5 | 3.6 | 76% | 84.2°F | 2 |
| December | 79°F | 73°F | 11.2 | 2.4 | 75% | 82.4°F | 0 |
Weather data by Open-Meteo.com (CC BY 4.0) and the NOAA National Hurricane Center. Data updated September 2026. How we calculate.
Frequently asked questions
What is the best time to visit Cancún?
For dry weather with little storm risk, February, March and April are the best months, with 6.2 to 8 rain days a month. A rain day is at least 0.04 inches of rain, and is often a short shower.
What is the rainiest month in Cancún?
September, with about 23 rain days on average over 30 years of daily records.
What is the hottest month in Cancún?
August, with average highs of about 86.4°F. The coolest month is January, at about 77.9°F.
How warm is the sea in Cancún?
Sea temperature averages 80.6°F in February and 86.9°F in September. It comes from a short marine record of about 4 years, so read it as a recent average.
When is hurricane season in Cancún?
June 1 to November 30. October has the most recorded storm days in our history. Storm history starts in 1985 and is not a forecast.