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 26.9°C (80.42°F). The average minimum temperature goes down to around 18.1°C (64.58°F) (often the minimum temperature is noted at night).

Rainfall during August is moderate with an average of 45mm (1.8 inches). This makes it the driest month of the year. 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 18 °C  

Max Temperature 26 °C  

Water Temperature 21 °C  

Chance of Rain 30%  

Precipitation 45mm  

Rainy days 9 days  

Humidity 77%  

Sunshine 182 hrs  

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.

Weather conditions Weather

Temperatures

Precipitation

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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 20-29ºC / 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 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.