Cancún Weather in September

What's the weather like in Cancún, Mexico in September 2018?

The climate in Cancún during September can be summarized as hot, humid and very wet.

September is in the fall / autumn in Cancún and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 23°C (73°F) is normal.

Cancún weather averages (imperial / metric)
Daytime temperature 31.8°C 89.2°F
Nightly temperature 22.7°C 72.8°F
Average temperature 27.2°C 81°F
Daily sunshine 6.7 hrs
Avg rainfall 224 mm 8.8 ins
Rainy days 14 days
Sea temperature 29.1°C 84.5°F
Humidity 85%
Windspeed 9.4kph 6 mph

On average September is the wettest month of the year in Cancún with around 224mm 8.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.7 hours of sunshine per day.

September temperatures in Cancún

September rainfall

September hourly sunshine

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in September 2018.

Other monthly averages

Cancún weather stats

Cancún weather statistics
Hottest month: August 32.5°C 90.5°F
Driest month: March 36mm 1.4ins
Sunniest month: April 8.5hrs
Coldest month: January 27.3°C 81.1°F
Wettest month: September 224mm 8.8ins
Map showing location of Cancún (21.17429, -86.84656)

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