Cancún in September
In September, Cancún averages 33°C (91°F) during the day and 25°C (77°F) at night, with around 13 days of rain (218 mm total).
Conditions are very hot — early-morning and evening sightseeing recommended. Plan for unsettled weather and bring rain gear.
It's peak hurricane season in Cancún during September. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
33°C
Avg high
25°C
Avg low
13
Rain days
218 mm
Rainfall
Cancún in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 28°C / 82°F | 20°C / 68°F | 89 mm | 8 | — |
| February | 29°C / 84°F | 20°C / 68°F | 56 mm | 6 | — |
| March | 30°C / 86°F | 22°C / 72°F | 41 mm | 4 | — |
| April | 32°C / 90°F | 23°C / 73°F | 39 mm | 4 | — |
| May | 33°C / 91°F | 25°C / 77°F | 109 mm | 7 | — |
| June | 33°C / 91°F | 26°C / 79°F | 165 mm | 9 | — |
| July | 34°C / 93°F | 26°C / 79°F | 89 mm | 8 | — |
| August | 34°C / 93°F | 26°C / 79°F | 116 mm | 9 | — |
| September | 33°C / 91°F | 25°C / 77°F | 218 mm | 13 | — |
| October | 31°C / 88°F | 24°C / 75°F | 196 mm | 11 | — |
| November | 29°C / 84°F | 22°C / 72°F | 102 mm | 8 | — |
| December | 28°C / 82°F | 21°C / 70°F | 102 mm | 9 | — |
Other cities with similar September weather
Check the live 10-day forecast and sunrise/sunset.