Rio de Janeiro weather in August (Rio de Janeiro State, Brazil)

This month is known as a warm month. The average maximum daytime temperature in Rio de Janeiro in August lies at 25.4°C (77.72°F). The average minimum temperature goes down to around 17.4°C (63.32°F) (often the minimum temperature is noted at night).

Rainfall during August is moderate with an average of 35mm (1.4 inches). There are generally around 9 rainy days. The sun will show itself now and again, with 182 hours of sunshine during the entire month.

 

Rio de Janeiro, monthly averages in August

Show in Fahrenheit
Min Temperature 17 °C  
Max Temperature 25 °C  
Water Temperature 21 °C *  
Chance of Rain 30%  
Precipitation 34mm  
Rainy days 9 days  
Humidity 77% *  
Sunshine 182 hrs *  

Where to stay in Rio de Janeiro

Where to go in Brazil in August

Find out more about the weather in Brazil in August 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 / 3.5inches a month).

So what to wear in August? Visitors traveling to Rio de Janeiro might want to wear airy clothing, t-shirts and other summer cloths. 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.

What To Do

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

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

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.