The highest day temperature in August 2025 was 81°F. The lowest night temperature was 62°F. The average values for day and night temperatures during August were 74.8°F и 67.5°F respectivly.

The average sea surface temperature in August 2025 for Buzios was 72.8°F. The maximum and minimum values were 71.8°F and 75.2°F respectively.

Most of the days in August are sunny but you can also expect cloudy and gloomy days.

Precipitation total in August for Buzios is 1.7 in. It makes august one of the least rainy months of the year.

The average wind speed in August is 13.7 mph. It makes August one of the most windy months of the year for Buzios.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Buzios in August is 7.8 hours.