Siesta Key (FL) monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Siesta Key

Siesta Key average temperature chart (Celsius) Siesta Key average temperature chart (Fahrenheit)
Average monthly temperatures in Siesta Key (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 21.6 22.3 25.1 28 30.7 31.9 32.3 32.4 31.5 28.9 25.5 22.7
°F 70.9 72.2 77.2 82.5 87.3 89.4 90.2 90.3 88.7 84.1 77.9 72.8

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Siesta Key monthly rainfall chart (mm) Siesta Key monthly rainfall chart (inches)
Average monthly rainfall in Siesta Key (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 55 71 80 42 84 170 195 195 170 77 45 54
inches 2.2 2.8 3.1 1.6 3.3 6.7 7.7 7.7 6.7 3 1.8 2.1
Rainy days 6 7 6 4 7 12 14 16 13 7 6 6

Average annual rainfall in Siesta Key: 1183.43325mm (465.9 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Siesta Key

Siesta Key average daily sunshine chart
Average daily sunshine Siesta Key
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.3 8 9.3 10.7 10.8 9.9 9.4 8.9 8.3 8.4 7.6 7.1

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Siesta Key average minimum / maximum temperatures (Celsius) Siesta Key average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Siesta Key (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 10.6 11.2 13.9 16.3 19.4 22.2 23.2 23.3 22.7 19.1 14.6 11.6
Max °C 21.9 22.6 25.4 28.3 31 32.1 32.6 32.6 31.7 29.2 25.8 22.9
Min °F 51 52.2 57.1 61.3 66.9 71.9 73.8 73.9 72.8 66.3 58.3 52.8
Max °F 61.2 62.5 67.4 72.1 77.4 80.9 82.2 82.3 81 75.4 68.3 63.1

Sea temperature

The graph below shows the average sea temperature.

Siesta Key average sea temperature chart (Celsius) Siesta Key average sea temperature chart (Fahrenheit)
Average sea temperature around Siesta Key in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 20.4 19.6 20.1 22 24.9 27.7 29.2 29.8 29.2 27.3 24.7 22.3
°F 68.7 67.2 68.2 71.6 76.8 81.9 84.6 85.6 84.5 81.2 76.4 72.2

Wind speed

The graph below shows the average wind speed.

Siesta Key average winspeed by month (km/h) Siesta Key average winspeed by month (mph)
Average wind speed in Siesta Key (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 15 16 16 16 15 13 12 12 12 14 14 14
mph 9 10 10 10 9 8 7 7 8 9 9 9

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Siesta Key relative humidity averages
Average relative humidity in Siesta Key
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
75% 73% 72% 69% 71% 75% 78% 79% 78% 75% 75% 75%
Siesta Key

Other monthly averages

UV index Best time to go?

Siesta Key weather stats

Siesta Key weather statistics
Hottest month: August 32.4°C 90.3°F
Driest month: April 42mm 1.7ins
Sunniest month: April 10.7hrs
Coldest month: January 21.6°C 70.9°F
Wettest month: August 195mm 7.7ins
Warmest sea: August 29.8°C 85.6°F
Map showing location of Siesta Key (27.30199, -82.55149) Siesta Key map pin © Google

Locations nearby

Top United States locations