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.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Brazil, check out our Itanhaém's climate page.

Itanhaém Temperature in September

Min Temperature 18°C (64°F)  

Max Temperature 24°C (75°F)  

Chance of Rain 53%  

Precipitation 151 mm (5.9 in)  

Rainy days 16 days  

Humidity 82% *  

Sunshine 90 hours *  

Percentage Sunshine *  

* Data from: Santos, Brazil (52 KM, 32 Miles).

What to Wear in Itanhaém in September

For Itanhaém in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Itanhaém in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Camping

6/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Brazil, check out our Itanhaém's climate page.

More climate data for Itanhaém

Temperature Rainfall Sunshine Humidity

See the full Itanhaém climate overview or explore weather in Brazil.