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Hourly Forecast
Daylight Hours
06:39
Sunrise
18:40
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Waxing Gibbous
14:57
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01:00
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View stargazing scoreWeather in Cancún today, September 20, 2026
Cancún starts September 20, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans.
Temperatures climb from an overnight low near 26°C toward a daytime high of about 28°C. Moisture in the air spans 78%-83%, with the highest values around 13:00. Expect gentle winds, highest near 13:00 at 3.0 km/h.
Expect the wet theme to continue later, as rain odds reach 76% near 14:00. Cloud amounts hold near 54% around 19:00. Visibility holds near 15.6 km, though it can fall to 11.0 km. Sunrise is at 06:39 and sunset at 18:40, giving 12 hours 0 minutes of sunlight today.
In short, treat September 20, 2026 in Cancún as a damp day: pack covers, watch the wetter hours, and expect a high near 28°C.
Frequently asked questions about weather in Cancún
How warm does it get in Cancún?
The warmest month in Cancún is August, with average high temperatures of 29°C. The average temperature during this period is around 28°C.
How cold does it get in Cancún?
The coldest month in Cancún is January, with average low temperatures of 24°C. The average temperature during this period is around 25°C.
What is the wettest time of year in Cancún?
The wettest month in Cancún is June, with an average of 180mm of precipitation.
What is the driest time of year in Cancún?
The driest month in Cancún is March, with an average of 25mm of precipitation.
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