Weather in September in Brazil

Many people wonder what the weather conditions are in September in Brazil. Is this month a good time to go to Brazil? To answer that question we created this page with all the information you need.

What is the weather like in Brazil in September?

The weather in Brazil in September ranges from poor to perfect depending on the destination.

September has maximum daytime temperatures ranging from moderate in São Joaquim with 17°C (62°F) to very warm temperatures in Cabrobó with 333°C (631°F). Nighttime temperatures generally drop to 22°C (72°F) in Cabrobó and 7°C (45°F) in São Joaquim. It is a very warm month in some areas, so be prepared and make sure to dress lightly.

Precipitation ranges from low in Barbalha with 5mm (0.2inch) rainfall to heavy in Iguatu with 213mm (8.4inch) rainfall. In general it is also a moderate sunny month with an average of 144 hours of sunshine in Rio de Janeiro during the whole month.

Where to go in Brazil in September

Find the average weather conditions in September for the most popular destinations in Brazil on the map below. Click on a destination dot for more detailed information.

Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inch a month).

Popular destinations in Brazil

What is the weather like in September for the 5 most popular destinations in Brazil?

Average weather in Rio de Janeiro

In September Rio de Janeiro generally has warm temperatures with maximum daytime temperatures around 26°C (78°F), minimum nighttime temperatures around 19°C (66°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

Rio de Janeiro
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
26°C / 78°F 
19°C / 66°F 
182 hours 
51mm / 2inch 
5 days 
26°C / 78°F 
19°C / 66°F 
144 hours 
53mm / 2.1inch 
7 days 
October   >> October
>>  
26°C / 79°F 
20°C / 68°F 
154 hours 
88mm / 3.5inch 
9 days 
Climate in Rio de Janeiro

Average weather in Sao Paulo

In September Sao Paulo generally has warm temperatures with maximum daytime temperatures around 24°C (76°F), minimum nighttime temperatures around 14°C (57°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

Sao Paulo
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
24°C / 75°F 
13°C / 55°F 
175 hours 
39mm / 1.5inch 
4 days 
24°C / 76°F 
14°C / 57°F 
152 hours 
84mm / 3.3inch 
7 days 
October   >> October
>>  
26°C / 79°F 
16°C / 61°F 
153 hours 
126mm / 5inch 
10 days 
Climate in Sao Paulo

Average weather in Florianópolis

In September Florianópolis generally has warm temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 15°C (59°F) and high monthly rainfall. So on average the conditions are pleasant that month.

Florianópolis
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
22°C / 71°F 
14°C / 56°F 
158 hours 
75mm / 3inch 
7 days 
22°C / 72°F 
15°C / 59°F 
130 hours 
143mm / 5.6inch 
11 days 
October   >> October
>>  
24°C / 75°F 
17°C / 63°F 
145 hours 
151mm / 5.9inch 
13 days 
Climate in Florianópolis

Average weather in Gramado

In September Gramado generally has moderate temperatures with maximum daytime temperatures around 20°C (67°F), minimum nighttime temperatures around 10°C (50°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Gramado
Max temperature Max temp
Min temperature Min temp
Monthly rainfall Rainfall
Weather conditions Weather
<<   August August
<<  
18°C / 64°F 
9°C / 47°F 
171mm / 6.7inch 
20°C / 67°F 
10°C / 50°F 
199mm / 7.8inch 
October   >> October
>>  
22°C / 71°F 
12°C / 53°F 
177mm / 7inch 
Climate in Gramado

Average weather in Fortaleza

In September Fortaleza generally has very warm temperatures with maximum daytime temperatures around 30°C (87°F), minimum nighttime temperatures around 23°C (74°F) and low monthly rainfall. So on average the conditions are perfect that month.

Fortaleza
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
30°C / 86°F 
23°C / 73°F 
292 hours 
28mm / 1.1inch 
5 days 
30°C / 87°F 
23°C / 74°F 
283 hours 
23mm / 0.9inch 
4 days 
October   >> October
>>  
31°C / 87°F 
24°C / 75°F 
296 hours 
16mm / 0.6inch 
4 days 
Climate in Fortaleza

Is your destination not in the list? Have a look at other destinations in Brazil.

Is September the best time to go to Brazil?

In our opinion September is one of the best times to visit Brazil with commonly perfect weather in Rio de Janeiro. However, the weather conditions may vary depending on your destination.

On average the best time to visit Brazil is in April, May, June, July, August, September, October and November with generally perfect weather in Rio de Janeiro. The worst months are January and February that can have tolerable weather conditions.

Interested in more climate information?

We have much more information about the climate in Brazil. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for almost all countries in the world. Are you going to Brazil? Get detailed historical weather averages for many cities in Brazil.

    Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.