Isla Mujeres Weather in September

Isla Mujeres in September averages 30°C (86°F) during the day and 27°C (81°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Isla Mujeres in September

Historically, approximately 15 days this month are expected to have rain, averaging 179 mm (7 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Isla Mujeres in September

In September, Isla Mujeres gets high temperatures, with highs of 30°C (86°F). Nights cool to around 27°C (81°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 27°C (81°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help.

Sunshine in Isla Mujeres in September

The city usually sees around 195 hours of sunlight, indicating many sunny days , a great month for sightseeing.

Average water temperature in September

At 29°C (84°F), the water feels bath-warm. Fine for swimming, but those looking for a cooling swim may be a bit disappointed.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Isla Mujeres. Our weather planner can help you explore destinations with more pleasant weather conditions.