Off season. September is one of the quieter, less reliable months in Cancún. In September, Cancún averages 28°C, with about 11 hours of sunshine a day and roughly 4.5 rainy days a week. Here's what those numbers mean for a trip.
That's about 1.3°C warmer than Cancún's yearly average — September sits among its hotter months.
Pack warm layers and proper rain gear; this is not reliable beach weather.
September is one of the quieter, less reliable months in Cancún. It averages 28°C with 11 hours of sun a day and about 4.5 rainy days a week.
Cancún averages 28°C in September, based on roughly twenty years of climate records.
Expect about 4.5 rainy days a week in September, with 11 hours of sunshine a day on average.