The highest day temperature in September 2022 was 98°F. The lowest night temperature was 60°F. The average values for day and night temperatures during September were 77.2°F и 67.3°F respectivly.

The average sea surface temperature in September 2022 for Rio de Janeiro was 73.5°F. The maximum and minimum values were 72.2°F and 75.8°F respectively.

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

Precipitation total in September for Rio de Janeiro is 3.1 in.

The average wind speed in September is 7.3 mph. This value is relatively stable throughout the year.

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 Rio de Janeiro in September is 7.9 hours.