Measurements:
°C
°F
Siesta Key
78°F
W 14 mph
Feels like: 82°F
Precip: 0%
World Resorts USA Siesta Key Weather September Weather in Siesta Key

Siesta Key Weather: September

Average Day Temperature: 90.1°F
Average Night Temperature: 82.0°F
Sea Water Temperature: 90.0°F
Number of Sunny Days: 5 days
Sunshine Hours: 11.9 - 12.7 hours
Number of Rainy Days: 4 days
Precipitation Totals: 2.6 in

Air Temperature in September, °F

Select Year: 2024 2023 2022

The highest day temperature in September 2024 was 97°F. The lowest night temperature was 80°F. The average values for day and night temperatures during September were 91.0°F и 83.6°F respectivly.

Siesta Key Water Sea Temperature in September, °F

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Siesta Key was 90.9°F. The maximum and minimum values were 88.6°F and 92.2°F respectively.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in September, in

Precipitation total in September for Siesta Key is 2.6 in. It makes september one of the most rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 8.1 mph. It makes September one of the most windless months of the year for Siesta Key.

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 Siesta Key in September is 6.3 hours.

Best Time to Visit Siesta Key
The most sunny months:
March 21 days
May 19 days
April 18 days
The most warm months:
July 92.2 °F
August 92.2 °F
June 90.2 °F
Warmest sea temperature:
August 91.6 °F
July 91.2 °F
September 90.0 °F
The most cold months:
January 69.4 °F
December 72.5 °F
February 73.4 °F
The most rainy months:
June 6 days
July 4 days
September 4 days
The most windy months:
November 11 mph
April 10 mph
January 10 mph

Siesta Key on the Weather Map

USA Resorts:
NAME
Boston +56
Chicago +64
Hawaii +80
Honolulu +80
Houston +74
Las Vegas +44
Los Angeles +62
Maui +74
Miami +84
New York +62
San Diego +52
San Francisco +56
Sarasota +76
Tampa +78
Washington +62
24 Hours Weather Forecast
Siesta Key
Local time: 09:40
05 nov, tuesday
1200 82°F
W
17 mph
1500 84°F
W
18 mph
1800 82°F
W
17 mph
2100 82°F
W
17 mph
06 nov, wednesday
0000 80°F
W
16 mph
0300 80°F
W
15 mph
0600 80°F
W
14 mph
0900 82°F
W
14 mph