31.1317’ N, 81.3967’ W

St. Simons Island, GA

83°
H -°
L 66°
W
12mph
High tide
9:39 pm

Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Sunday, October 11, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide (tomorrow) : 3:57 am (0.5 ft)
Next high tide : in 5h 09m at 9:39 pm (7.5 ft)
Sunset today : 6:58 pm
Sunrise tomorrow : 7:25 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jan 1825

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:476.45:155.511:240.511:29-0.37:285:38Waxing Gibbous1Sat
2Sun5:406.86:065.712:180.17:285:39Waxing Gibbous2Sun
3Mon6:297.16:546.012:22-0.61:09-0.37:285:40Full Moon3Mon
4Tue7:177.57:416.31:14-1.01:58-0.77:295:40Full Moon4Tue
5Wed8:057.78:296.62:05-1.32:44-1.07:295:41Full Moon5Wed
6Thu8:537.79:196.72:54-1.43:30-1.27:295:42Waning Gibbous6Thu
7Fri9:437.610:116.83:43-1.44:16-1.27:295:43Waning Gibbous7Fri
8Sat10:357.411:076.84:34-1.35:04-1.27:295:44Waning Gibbous8Sat
9Sun11:297.05:29-0.95:55-1.07:295:44Waning Gibbous9Sun
10Mon12:046.712:256.66:29-0.66:51-0.87:295:45Third Quarter10Mon
11Tue1:026.71:226.27:35-0.37:52-0.67:295:46Third Quarter11Tue
12Wed2:036.62:235.98:44-0.18:54-0.57:295:47Third Quarter12Wed
13Thu3:076.53:265.79:500.09:56-0.47:295:48Waning Crescent13Thu
14Fri4:126.54:305.610:52-0.110:55-0.47:295:49Waning Crescent14Fri
15Sat5:136.65:295.711:49-0.211:51-0.57:285:49Waning Crescent15Sat
16Sun6:086.76:225.812:42-0.37:285:50Waning Crescent16Sun
17Mon6:566.87:105.912:44-0.61:30-0.57:285:51New Moon17Mon
18Tue7:406.87:536.01:31-0.62:13-0.57:285:52New Moon18Tue
19Wed8:206.88:346.02:14-0.62:51-0.67:285:53New Moon19Wed
20Thu8:596.69:136.02:52-0.63:26-0.57:275:54New Moon20Thu
21Fri9:366.49:515.93:28-0.43:58-0.47:275:55Waxing Crescent21Fri
22Sat10:126.210:295.84:01-0.24:28-0.37:275:56Waxing Crescent22Sat
23Sun10:485.911:065.84:350.05:00-0.17:265:57Waxing Crescent23Sun
24Mon11:255.611:455.75:100.35:340.07:265:57Waxing Crescent24Mon
25Tue12:045.45:500.56:130.27:255:58First Quarter25Tue
26Wed12:265.712:465.26:370.77:000.37:255:59First Quarter26Wed
27Thu1:125.71:345.07:340.97:540.37:246:00First Quarter27Thu
28Fri2:045.72:305.08:390.98:550.27:246:01First Quarter28Fri
29Sat3:045.93:335.09:450.79:570.07:236:02Waxing Gibbous29Sat
30Sun4:076.24:385.310:490.410:59-0.47:236:03Waxing Gibbous30Sun
31Mon5:096.65:375.711:480.011:58-0.87:226:04Waxing Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8677344)

Common Questions About St. Simons Island, GA Tides

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Is this week a spring tide or neap tide in St. Simons Island, GA?

St. Simons Island, GA is currently in a spring phase. Tonight's moon is 1% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are St. Simons Island, GA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for St. Simons Island, GA?

Tide predictions for St. Simons Island, GA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for St. Simons Island, GA?

Tide data for St. Simons Island, GA is sourced from NOAA Station #8677344. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8677344.

What is the moon phase in St. Simons Island, GA tonight?

Tonight the moon over St. Simons Island, GA is New Moon (1% illuminated). This places St. Simons Island, GA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA