Itanhaém weather in September (Sao Paulo State, Brazil)

Looking to travel to Itanhaém in September? Check out this comprehensive weather guide.

In September, Itanhaém generally has high temperatures and high rainfall. Anticipate daytime temperatures around 24°C, while night temperatures can drop to 18°C.

Itanhaém in September usually receives high rainfall, averaging around 151 mm for the month. Based on our climate data of the past 30 years, about 16 days of rain are anticipated.

The city usually sees around 90 hours of sunlight, indicating fewer sunny days.

In case you lean more towards enjoying temperate temperatures and rain-free days August typically offers the most optimal weather. In contrast, January and February tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Itanhaém climate page with graphs.

 

Itanhaém, monthly averages in September

Min TemperatureMin Temperature 18°C  
Max TemperatureMax Temperature 24°C  
Chance of RainChance of Rain 53%  
PrecipitationPrecipitation 151 mm  
Rainy daysRainy days 16 days  
HumidityHumidity 82% *  
SunshineSunshine 90 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Santos, Brazil (52 KM, 32 Miles).

Where to go in Brazil in September

Find out more about the weather in Brazil in September and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Itanhaém in September?

For visitors traveling to Itanhaém, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Swimming
4/10
Camping
6/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Itanhaém.

Our site offers climate and forecast data for every country in the world. Are you going to Brazil? On this website you can find historical weather averages for many cities in Brazil. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.