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 25.5°C (77.9°F). The sun will occasionally show itself with 144 hours of sunshine during the whole month.


So what to wear in September? Visitors traveling to Rio de Janeiro might want to wear dresses, tops, T-shirts and skirts made of cotton or linen. Shorts for men made of cotton or linen are good options for staying cool on a hot day. 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 Celsius

Min Temperature 66 °F
Max Temperature 77 °F
Water Temperature 69 °F
Chance of Rain 23%
Precipitation 2 in
Rainy Days 7
Sunshine Hours 144

Where to stay in Rio de Janeiro

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.

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).

What To Do

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

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

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

FRI Aug 12
71°F | 64°F
Moderate rain

Moderate rain

SAT Aug 13
80°F | 60°F
Sunny

Sunny

SUN Aug 14
80°F | 61°F
Sunny

Sunny

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.