Measurements:
°C
°F
Rio de Janeiro
84°F
S 4 mph
Feels like: 88°F
Precip: 0%
World Resorts Brazil Rio de Janeiro Weather September Weather in Rio de Janeiro

Rio de Janeiro Weather: September

Average Day Temperature: 83.9°F
Average Night Temperature: 71.7°F
Sea Water Temperature: 74.4°F
Number of Sunny Days: 17 days
Sunshine Hours: 11.7 - 12.3 hours
Number of Rainy Days: 5 days
Precipitation Totals: 2.9 in

Air Temperature in September, °F

Select Year: 2023 2022 2021

The highest day temperature in September 2023 was 97°F. The lowest night temperature was 66°F. The average values for day and night temperatures during September were 83.6°F и 72.6°F respectivly.

Rio de Janeiro Water Sea Temperature in September, °F

Select Year: 2023 2022 2021

The average sea surface temperature in September 2023 for Rio de Janeiro was 77.3°F. The maximum and minimum values were 74.0°F and 80.6°F respectively.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in September, in

Precipitation total in September for Rio de Janeiro is 2.9 in.

Wind Speed in September, mph

The average wind speed in September is 7.2 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

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 8.0 hours.

Best Time to Visit Rio de Janeiro
The most sunny months:
July 21 days
August 19 days
May 19 days
The most warm months:
February 93.0 °F
January 92.0 °F
March 91.1 °F
Warmest sea temperature:
February 83.0 °F
January 82.7 °F
March 82.3 °F
The most cold months:
August 82.9 °F
June 83.1 °F
September 83.9 °F
The most rainy months:
November 10 days
December 9 days
January 8 days
The most windy months:
October 7 mph
September 7 mph
November 7 mph

Rio de Janeiro on the Weather Map

24 Hours Weather Forecast
Rio de Janeiro
Local time: 10:18
17 apr, wednesday
1200 90°F
NW
5 mph
1500 90°F
NW
7 mph
1800 82°F
NW
4 mph
2100 82°F
SE
1 mph
18 apr, thursday
0000 80°F
E
4 mph
0300 78°F
E
6 mph
0600 78°F
E
5 mph
0900 82°F
E
6 mph