Average weather in September in Rio de Janeiro (Rio de Janeiro State), Brazil

The average minimum temperature (usually the minimum temperature is noted during the night) in Rio de Janeiro in September is 19.0°C (66.2°F). The amount of rain in September is normal with an average of 53mm (2.1in). It rains on average a total of 7 days. The average maximum daytime temperature lies around 25.0°C (77°F). The sun will occasionally show itself with 137 hours of sunshine during the whole month. September is known as one of the best months to visit Rio de Janeiro.


So what to wear in September? Bring a rain jacket just in case since it will be raining a few days during this period. Also bring your shorts or a skirt because it can be very warm or even hot. With a water temperature of around 21.0°C (69.8°F), this is a great month to swim so bring your swimwear.

No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.

For other monthly average weather and what to do in September look at the numbers below.

Monthly Averages in September

Show in Fahrenheit

Min Temperature 19 °C
Max Temperature 25 °C
Water Temperature 21 °C
Chance of Rain 23%
Precipitation 53mm
Rainy Days 7
Sunshine Hours 137

Where to stay in Rio de Janeiro

What is the best place to go in September in Brazil?

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

What To Do

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

Swimming
7/10
Cycling
10/10
Walking
10/10
Camping
8/10
Outdoor sports
10/10

Weather Forecasts for Rio de Janeiro (Rio de Janeiro State)

FRI Jun 24
30°C | 19°C
Sunny

Sunny

SAT Jun 25
26°C | 19°C
Patchy rain possible

Patchy rain possible

SUN Jun 26
20°C | 18°C
Moderate rain

Moderate rain

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Rio de Janeiro.

Our site offers climate and forecast data for almost all countries 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 suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.