St. Simons, GA Weather - Forecast & Monthly Averages

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Key findings

The highest monthly average temperature in St. Simons for July is 82 degrees
The lowest monthly average temperature in St. Simons for January is 53 degrees
The most monthly precipitation in St. Simons occurs in August with 6.4 inches
The air quality index in St. Simons is 28% better than the national average
The pollution index in St. Simons is 92% better than the national average

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St. Simons Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	44°F	63°F	53°F	2.9"
February	45°F	65°F	54°F	3.1"
March	52°F	71°F	60°F	2.5"
April	59°F	77°F	68°F	3.3"
May	67°F	83°F	74°F	3.0"
June	73°F	88°F	80°F	5.3"
July	76°F	90°F	82°F	4.3"
August	76°F	90°F	82°F	6.4"
September	72°F	86°F	79°F	5.8"
October	63°F	79°F	70°F	3.4"
November	52°F	71°F	61°F	1.4"
December	48°F	67°F	56°F	2.6"

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St. Simons air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
Index	St. Simons	Georgia	National
Air quality index	36	41	50
Pollution index	380,728	3,237,553	5,066,862

St. Simons air quality information

Measurement	Total
Days measured	279
Days with good air quality	254
Days with moderate air quality	25
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

St. Simons air quality information

Pollutant	Total
Arsenic	0.001%
Benzene	0.010%
Carbon Tetrachloride	0.001%
Lead	0.001%
Mercury	0.000%

Average monthly St. Simons temperature with heat index

St. Simons monthly precipitation with daily maximum

St. Simons monthly snow depth with daily maximum

St. Simons monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Darien, GA	2,825	36	28%
Dock Junction, GA	6,822	36	28%
Brunswick, GA	15,997	36	28%
Country Club Estates, GA	8,301	36	28%
St. Simons, GA	13,480	36	28%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Orangeburg, SC	13,478	43	14%
Waimalu, HI	13,478	30	40%
Grover Beach, CA	13,484	46	8%
Pell City, AL	13,489	38	24%
Brecksville, OH	13,470	50	= 100
St. Simons, GA	13,480	36	28%

Source: The St. Simons, GA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.