Weather in Saint Simons Island

14-day forecast · updated today, Wednesday, October 28, at 11:37 pm (EDT)

Now · clear 69 °F

Feels like: 68 °F
Low / high: 60 / 74 °F
Rain: 0%
Wind: 15 mph NE

↘ 30.10 inHg · falling

Today in Saint Simons Island: clear sky, 60 °F to 74 °F, with a 0% chance of rain and a moderate breeze from the northeast (15 mph). Tomorrow, partly cloudy, 66 °F to 74 °F and a 3% chance of rain. The warmest day of the week is Saturday 31, at 75 °F. Next likely rain: Saturday 31 (40%).

Measured now at the airport

Brunswick/McKinnon St Simons (KSSI), 1.2 mi away · 22 min ago

Visibility7.0 mi

WeatherNothing to note

Temperature70 °F

Wind9 mph from the north-northeast

It's what the airport's weather station measured, not a forecast: on the coast, wind and fog can be different. Airports report every 30 or 60 minutes.

Airport METAR report, via NOAA's Aviation Weather Center (aviationweather.gov). Sources and licenses

Temperatures for the next 14 days

74° 60°
Today
74° 66°
Thu 29
74° 63°
Fri 30
75° 66°
Sat 31
73° 65°
Sun 1
73° 64°
Mon 2
74° 62°
Tue 3
75° 63°
Wed 4
74° 62°
Thu 5
71° 56°
Fri 6
70° 54°
Sat 7
69° 53°
Sun 8
70° 54°
Mon 9
70° 54°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 28	Clear sky	60 / 74 °F	0%	17 mph NNE	2.8 ft	10:17 am · 10:42 pm	HRRR
Thu 29	Partly cloudy	66 / 74 °F	3%	16 mph NE	2.8 ft	11:13 am · 11:39 pm	HRRR + NBM
Fri 30	Overcast	63 / 74 °F	0%	13 mph NE	2.2 ft	12:13 pm	NBM
Sat 31	Light drizzle	66 / 75 °F	40% · 0.02 in	15 mph NE	2.2 ft	12:41 am · 1:17 pm	NBM
Sun 1	Light drizzle	65 / 73 °F	43% · 1.79 in	15 mph ENE	2.2 ft	1:45 am · 1:22 pm	NBM
Mon 2	Light drizzle	64 / 73 °F	43% · 1.73 in	14 mph NE	2.7 ft	1:51 am · 2:27 pm	NBM
Tue 3	Mainly clear	62 / 74 °F	4%	13 mph NE	2.6 ft	2:56 am · 3:30 pm	NBM
Wed 4	Clear sky	63 / 75 °F	12%	9 mph ENE	2.2 ft	3:59 am · 4:29 pm	NBM
Thu 5	Drizzle	62 / 74 °F	22% · 0.02 in	9 mph SE	1.8 ft	4:56 am · 5:22 pm	NBM
Fri 6	Rain	56 / 71 °F	11% · 0.02 in	8 mph SW	2.0 ft	5:46 am · 6:10 pm	NBM
Sat 7	Light drizzle	54 / 70 °F	6%	8 mph NW	2.1 ft	6:31 am · 6:54 pm	NBM
Sun 8	Drizzle	53 / 69 °F	12% · 0.02 in	9 mph NNE	1.8 ft	7:12 am · 7:35 pm	NBM + ECMWF
Mon 9	Light drizzle	54 / 70 °F	9% · 0.01 in	8 mph N	2.5 ft	7:51 am · 8:15 pm	ECMWF
Tue 10	Light drizzle	54 / 70 °F	14% · 0.03 in	7 mph NNE	2.2 ft	8:29 am · 8:54 pm	ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 6:00 pm; then NBM until Sunday 8 8:00 pm; then ECMWF until Thursday 12 10:00 am; then GFS.

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Clear	Clear	Clear	Clear sky	Clear sky	Clear sky	Clear sky	Clear
Temperature	65°	66°	64°	62°	72°	74°	71°	68°
Chance of rain	0%	0%	0%	0%	0%	0%	0%	0%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	10 NNE	11 NNE	9 N	9 N	17 NNE	16 NNE	13 NNE	8 NNE
Humidity	71%	84%	86%	88%	85%	82%	81%	90%
UV	0	0	0	1	5	4	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR

Do the models agree?

High confidence

The models agree for the next few days: the forecast is fairly solid.

What 6 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	77°	77°	77°	76°	76°	75°	80°
AIFS	77°	75°	77°	76°	73°	73°	76°
GFS	73°	75°	75°	74°	76°	69°	76°
ICON	74°	75°	76°	74°	74°	71°	76°
HRRR	74°	74°	74°	—	—	—	—
NBM	73°	74°	74°	75°	73°	73°	74°
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	0	0	0	0.07 in	0.07 in	0.08 in	0
AIFS	0	0.02 in	0	0.13 in	0.10 in	0.09 in	0.09 in
GFS	0.02 in	0.00 in	0	0.17 in	0.26 in	3.13 in	0.01 in
ICON	0	0	0	0.04 in	0.02 in	1.19 in	0
HRRR	0	0	0	—	—	—	—
NBM	0	0	0	0.02 in	1.79 in	1.73 in	0
Confidence	high	high	high	high	medium	medium	high

Do the models agree? · Wind
Wind (mph)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	1330	1328	1124	1329	1324	1429	1129
AIFS	14	13	10	15	15	16	15
GFS	1729	1626	1323	1324	1421	1628	1324
ICON	1328	1226	1023	1021	921	1532	615
HRRR	1732	1630	1527	—	—	—	—
NBM	1729	1526	1322	1529	1526	1423	1320
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF (51 scenarios)	0%	6%	4%	55%	39%	41%	23%
GFS (GEFS, 31 scenarios)	0%	6%	0%	61%	83%	54%	19%
NBM (NOAA)	0%	3%	0%	40%	43%	43%	4%
Thunderstorm (NBM)	0%	0%	2%	12%	19%	19%	6%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: normal temperatures, wetter and a near-normal sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Above +2.7 °F	Above +77%	A bit below −0.5 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit below −1.1 °F	A bit above +32%	Normal 0.0 °F	68° / 63°
Nov 16 – Nov 22Nov 16–Nov 22	Normal +0.7 °F	A bit above +33%	Normal 0.0 °F	68° / 63°
Nov 23 – Nov 29Nov 23–Nov 29	Normal +0.2 °F	Well above +125%	Normal +0.2 °F	66° / 62°
Nov 30 – Dec 6Nov 30–Dec 6	Normal −0.4 °F	Well above +153%	Normal −0.2 °F	65° / 60°

Coming months

When	TemperatureTemp.	Rain	Sea
November	A bit above +0.9 °F	Above +68%	—
December	Normal −0.4 °F	Above +53%	—
January	A bit below −0.9 °F	Above +63%	—
February	A bit below −0.9 °F	Above +74%	—
March	A bit below −0.9 °F	Above +63%	—

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give.

Saint Simons Island climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Saint Simons Island is from April to May and in November: highs of 71 °F to 83 °F, about 7 rainy days a month and 7 hours of sunshine a day.

Hurricane season: from May to October, peaking in August. In the last 30 years (1996–2025), 18 tropical cyclones passed within 93 mi of Saint Simons Island, about 6 every 10 years; 3 of them with hurricane-force winds (74 mph or more). The most recent: Debby, in August 2024.

61° 43°

JanJ
64° 45°

FebF
71° 51°

MarM
77° 58°

AprA
83° 66°

MayM
88° 72°

JunJ
91° 74°

JulJ
89° 74°

AugA
85° 71°

SepS
79° 62°

OctO
71° 53°

NovN
64° 46°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	61°	43°	3.26 in	8	5.1	59°	2.0 ft	–
FebruaryFeb	64°	45°	3.32 in	7	5.2	58°	2.0 ft	–
MarchMar	71°	51°	3.44 in	8	6.8	61°	2.1 ft	–
AprilApr	77°	58°	2.67 in	6	8.0	68°	2.1 ft	–
MayMay	83°	66°	2.89 in	9	9.2	75°	2.0 ft	2
JuneJun	88°	72°	6.07 in	18	7.7	81°	1.6 ft	3
JulyJul	91°	74°	4.96 in	18	8.6	83°	1.6 ft	2
AugustAug	89°	74°	6.39 in	19	7.4	83°	1.7 ft	4
SeptemberSep	85°	71°	7.05 in	14	6.0	82°	2.3 ft	3
OctoberOct	79°	62°	3.56 in	8	6.0	76°	2.4 ft	3
NovemberNov	71°	53°	2.02 in	6	5.7	69°	2.5 ft	1
DecemberDec	64°	46°	3.04 in	7	4.5	62°	2.1 ft	–

Month	Water	Waves	Cyclones
Jan	59°	2.0 ft	–
Feb	58°	2.0 ft	–
Mar	61°	2.1 ft	–
Apr	68°	2.1 ft	–
May	75°	2.0 ft	2
Jun	81°	1.6 ft	3
Jul	83°	1.6 ft	2
Aug	83°	1.7 ft	4
Sep	82°	2.3 ft	3
Oct	76°	2.4 ft	3
Nov	69°	2.5 ft	1
Dec	62°	2.1 ft	–

Days: rainy days in the month. Sun: hours a day.

A normal year brings 48.65 in of rain on about 127 days and about 2,450 hours of sunshine.

Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now69 °Ffeels like 68 °F

Tomorrow66 / 74 °F

It's 69 °F now (feels like 68 °F). Today, 60 °F to 74 °F; tomorrow, 66 °F to 74 °F.

Chance of rain

Today 0%
Thu 29 3%
Fri 30 0%
Sat 31 40% 0.02 in
Sun 1 43% 1.79 in
Mon 2 43% 1.73 in
Tue 3 4%

Today the chance of rain reaches 0%. The next day with likely rain is Saturday 31: 40% and 0.02 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.00 in; last 7 days, 0.01 in.

Humidity and dew point

Humidity88%

Dew point65 °F

Humidity is 88% now and the dew point is 65 °F.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now9.0 migood

Clouds8%

Visibility is good now (9.0 mi). No fog expected today.

UV index

Now0

Today's peak6moderate

Thu 29: 4 · Fri 30: 6 · Sat 31: 5

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady Anglers expect normal activity
↘ Falling · now Anglers say fish feed more before the change

30.1030.20 30.18

Falling now (−0.05 inHg in 3 hours). Over the next 48 hours: +0.06 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityModerate · 62

Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Rain	Max wind
Tue 27	Mainly clear	57 / 76 °F	0	12 mph NNE
Mon 26	Clear sky	59 / 74 °F	0	13 mph NNE
Sun 25	Light drizzle	60 / 74 °F	0.01 in	15 mph NNE
Sat 24	Mainly clear	54 / 74 °F	0	15 mph NNE
Fri 23	Clear sky	51 / 73 °F	0	10 mph NNE
Thu 22	Clear sky	49 / 74 °F	0	7 mph NNE
Wed 21	Clear sky	53 / 77 °F	0	8 mph NNE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Clear sky	50 / 74 °F	0	9 mph N
Mon 19	Partly cloudy	53 / 70 °F	0	12 mph N
Sun 18	Overcast	53 / 66 °F	0	13 mph NNE
Sat 17	Overcast	61 / 72 °F	0	14 mph NNW
Fri 16	Mainly clear	66 / 86 °F	0	6 mph WSW
Thu 15	Overcast	64 / 86 °F	0	7 mph S
Wed 14	Overcast	63 / 86 °F	0	6 mph SSE
Tue 13	Clear sky	64 / 86 °F	0	7 mph N
Mon 12	Clear sky	66 / 84 °F	0	11 mph NW
Sun 11	Thunderstorm	71 / 82 °F	0.17 in	12 mph WSW
Sat 10	Thunderstorm	74 / 87 °F	0.83 in	11 mph SE
Fri 9	Rain	72 / 78 °F	0.99 in	15 mph ENE
Thu 8	Light drizzle	70 / 81 °F	0.02 in	10 mph NE
Wed 7	Drizzle	69 / 80 °F	0.18 in	14 mph NE
Tue 6	Drizzle	68 / 77 °F	0.35 in	12 mph NNE
Mon 5	Light rain	70 / 75 °F	0.48 in	9 mph NNE
Sun 4	Light showers	72 / 78 °F	0.84 in	5 mph SW
Sat 3	Thunderstorm	74 / 82 °F	1.26 in	6 mph SSE
Fri 2	Showers	74 / 81 °F	0.98 in	5 mph SE
Thu 1	Showers	71 / 85 °F	0.46 in	8 mph ENE
Wed 30	Light drizzle	66 / 86 °F	0.04 in	8 mph ENE
Tue 29	Overcast	64 / 88 °F	0	7 mph NE
Mon 28	Mainly clear	61 / 88 °F	0	7 mph SW

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in Saint Simons IslandQuestions

What's the weather like today in Saint Simons Island?

Clear sky, from 60 °F to 74 °F, with a moderate breeze from the northeast (15 mph) and a 0% chance of rain.

Will it rain tomorrow in Saint Simons Island?

On Thursday 29 the chance of rain is 3% (0.00 in): partly cloudy.

How warm will it be this week?

Between a low of 60 °F and a high of 75 °F; the warmest day, Saturday 31.

What's the UV index today?

It reaches 6 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 30.10 inHg and falling: −0.08 inHg over the last 24 hours.

When is the best time to visit Saint Simons Island?

The best time to visit Saint Simons Island is from April to May and in November: highs of 71 °F to 83 °F, about 7 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Saint Simons Island in October?

In October, Saint Simons Island normally sees highs of 79 °F and lows of 62 °F, with about 8 rainy days (3.56 in for the month) and 6 hours of sunshine a day. The sea is around 76 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Saint Simons Island?

The warmest is July, with average highs of 91 °F, and the coldest January, with lows of 43 °F. The wettest is September (7.05 in) and the driest, November.

When is hurricane season in Saint Simons Island?

Hurricane season: from May to October, peaking in August. In the last 30 years (1996–2025), 18 tropical cyclones passed within 93 mi of Saint Simons Island, about 6 every 10 years; 3 of them with hurricane-force winds (74 mph or more). The most recent: Debby, in August 2024.

More about Saint Simons Island today

Weather near Saint Simons Island

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 10 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 11:37 pm (local time).

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