Itanhaém Weather in September

September in Itanhaém sees daytime temperatures around 24°C (75°F) and lows of 18°C (64°F) at night. With around 151 mm (5.9 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Itanhaém in September

On average, there are about 16 days with rain during this month, averaging 151 mm (5.9 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Itanhaém in September

Itanhaém in September gets highs of 24°C (75°F) during the day and drops to 18°C (64°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 18°C (64°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Itanhaém in September

This month sees fewer sunny days, with about 90 hours of sunshine, perfect for those who enjoy cooler temperatures.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. August typically offers the best weather for Itanhaém.