Average water temperature in Rio de Janeiro (fahrenheit)
- On average, March has the hottest water temperature.
- On average, August has the coldest water temperature.
Show the average water temperatures in Rio de Janeiro in Celsius »
More climate information
Weather and Climate offers all the information you need to know about the climate in Rio de Janeiro.
We collected past weather data from many thousand weather stations around the world. So find on this website the historical weather averages in other cities in Brazil and climate and forecast data for all other countries in the world.