Isla Mujeres Weather in October

The climate in Isla Mujeres during October can be summarized as hot, humid and wet.

October is in the fall / autumn in Isla Mujeres and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (87°F), whilst at night 22°C (71°F) is normal.

On average October is the 2nd wettest month of the year in Isla Mujeres with around 188mm 7.4 inches of rain making it a wet time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 7 hours of sunshine per day.

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 Isla Mujeres in October 2025.