Saint Simons (GA) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Saint Simons

Saint Simons average temperature chart (Celsius) Saint Simons average temperature chart (Fahrenheit)
Average monthly temperatures in Saint Simons (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 15.4 16.6 20.3 24.2 27.4 30.2 31.7 31.1 28.8 24.9 20.8 17.2
°F 59.7 61.9 68.6 75.5 81.3 86.4 89.1 87.9 83.9 76.9 69.5 63

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.

Saint Simons monthly rainfall chart (mm) Saint Simons monthly rainfall chart (inches)
Average monthly rainfall in Saint Simons (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 85 91 100 69 89 130 149 170 180 90 66 72
inches 3.4 3.6 3.9 2.7 3.5 5.1 5.9 6.7 7.1 3.5 2.6 2.8
Rainy days 9 8 8 7 8 12 14 14 11 8 7 8

Average annual rainfall in Saint Simons: 1238.366mm (487.5 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Saint Simons

Saint Simons average daily sunshine chart
Average daily sunshine Saint Simons
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.5 7.3 8.6 10 10.2 9.9 9.6 8.8 8 7.7 7 6.4

Day / night temperatures

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

Saint Simons average minimum / maximum temperatures (Celsius) Saint Simons average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Saint Simons (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 5.4 6.6 10.5 14.4 18.4 22 23.3 23.4 21.6 16.3 11.2 7.2
Max °C 15.7 16.9 20.6 24.4 27.6 30.4 31.9 31.3 29 25.2 21.1 17.5
Min °F 41.6 43.8 50.8 57.9 65.1 71.6 73.9 74 70.9 61.3 52.1 44.9
Max °F 50.9 53.1 59.9 66.9 73.4 79.2 81.7 81.1 77.5 69.3 61 54.1

Sea temperature

The graph below shows the average sea temperature.

Saint Simons average sea temperature chart (Celsius) Saint Simons average sea temperature chart (Fahrenheit)
Average sea temperature around Saint Simons in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 19.7 19 18.7 20 23.4 26.5 28.1 28.3 27.5 25.1 22.4 20.9
°F 67.4 66.2 65.6 68 74.1 79.8 82.5 83 81.6 77.2 72.3 69.6

Wind speed

The graph below shows the average wind speed.

Saint Simons average winspeed by month (km/h) Saint Simons average winspeed by month (mph)
Average wind speed in Saint Simons (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 14 15 15 14 13 13 12 11 12 13 13 13
mph 9 9 9 9 8 8 7 7 7 8 8 8

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.

Saint Simons relative humidity averages
Average relative humidity in Saint Simons
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
73% 70% 70% 68% 72% 76% 77% 80% 80% 76% 76% 75%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Saint Simons weather stats

Saint Simons weather statistics
Hottest month: July 31.7°C 89.1°F
Driest month: November 66mm 2.6ins
Sunniest month: April 10hrs
Coldest month: January 15.4°C 59.7°F
Wettest month: September 180mm 7.1ins
Warmest sea: August 28.3°C 82.9°F
Map showing location of Saint Simons (31.13523, -81.3901) Saint Simons map pin © Google

Locations nearby

Top United States locations