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Weather in St. Simons, GA · National Weather Service + NOAA

St. Simons has milder winters than most of Georgia

St. Simons has warm winters and warm summers, with plenty of rain. A typical July afternoon reaches 91°, a January night drops to 43°, and snow is almost unheard of. Normal November highs come to 71°, and lows to 52°.

Winter 64°/45°Spring 77°/59°Summer 90°/74°Fall 79°/62°
Right now
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Sunrise 6:42 am · sunset 5:36 pm

Getting the latest forecast from the National Weather Service…

What stands out about St. Simons’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
Milder winters than most of GeorgiaJanuary nights average 43°, milder than 673 of 676 Georgia towns.A long growing season312 frost-free days, from Feb 9 to Dec 26.Snow is rareNo measurable snow in a normal year.Air-conditioning countryMore cooling degree days than 96% of U.S. towns.
A normal year

Where today sits in St. Simons’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
64° / 45°
Snow is rare
Spring
77° / 59°
Last frost around Feb 9
Summer
90° / 74°
47 days reach 90° in a normal year
Fall now
79° / 62°
First frost around Dec 26
54 daysuntil the usual first frost (Dec 26)
Best months to be outside
JanFebMarAprMayOctNovDec
Highs of 62–84° and lows of 40° or more
How much snow does St. Simons get?Almost none.When is it wettest?August, with 6.5 inches.Is it warmer than it used to be?+0.9° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in St. Simons.

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for St. Simons itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Brunswick Malcolm Mckinnon Airport, GA (2 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.