Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 3h 37m at 11:53 pm (0.8 ft)
Next high tide (tomorrow) : 5:32 am (6.1 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jan 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:086.25:245.411:390.511:310.07:245:34Waning Crescent1Fri
2Sat5:556.46:115.612:280.27:245:34Waning Crescent2Sat
3Sun6:396.76:555.812:20-0.21:15-0.17:245:35New Moon3Sun
4Mon7:217.07:376.01:09-0.51:59-0.47:245:36New Moon4Mon
5Tue8:037.28:196.21:55-0.82:42-0.67:245:37New Moon5Tue
6Wed8:457.29:046.32:40-0.93:24-0.87:245:37New Moon6Wed
7Thu9:307.29:526.53:26-1.04:06-0.97:255:38Waxing Crescent7Thu
8Fri10:187.010:436.54:12-0.94:50-0.97:255:39Waxing Crescent8Fri
9Sat11:096.811:376.65:02-0.75:38-0.87:255:40Waxing Crescent9Sat
10Sun12:036.55:59-0.46:30-0.77:255:41First Quarter10Sun
11Mon12:346.61:006.17:03-0.17:29-0.67:255:42First Quarter11Mon
12Tue1:336.62:015.88:140.18:32-0.57:255:42First Quarter12Tue
13Wed2:366.63:075.69:250.19:36-0.57:245:43First Quarter13Wed
14Thu3:436.64:155.510:330.010:39-0.67:245:44Waxing Gibbous14Thu
15Fri4:496.75:205.611:35-0.111:39-0.77:245:45Waxing Gibbous15Fri
16Sat5:506.96:185.812:33-0.37:245:46Waxing Gibbous16Sat
17Sun6:447.17:106.012:36-0.91:25-0.57:245:47Full Moon17Sun
18Mon7:327.17:576.11:28-1.02:12-0.77:245:48Full Moon18Mon
19Tue8:177.18:426.12:16-1.02:54-0.77:235:49Full Moon19Tue
20Wed8:596.99:246.12:59-0.93:31-0.67:235:49Full Moon20Wed
21Thu9:406.710:066.03:40-0.74:06-0.57:235:50Waning Gibbous21Thu
22Fri10:206.410:465.94:18-0.44:38-0.37:225:51Waning Gibbous22Fri
23Sat10:596.011:265.84:55-0.15:10-0.17:225:52Waning Gibbous23Sat
24Sun11:395.75:340.35:430.17:225:53Waning Gibbous24Sun
25Mon12:075.712:215.46:170.66:210.37:215:54Third Quarter25Mon
26Tue12:495.61:045.27:060.87:060.47:215:55Third Quarter26Tue
27Wed1:345.51:535.08:030.97:590.57:205:56Third Quarter27Wed
28Thu2:255.52:474.99:041.08:570.47:205:57Third Quarter28Thu
29Fri3:235.63:454.910:030.89:570.37:195:57Waning Crescent29Fri
30Sat4:235.84:445.111:010.610:550.07:195:58Waning Crescent30Sat
31Sun5:206.15:385.411:550.211:52-0.37:185:59Waning Crescent31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8677344)

Common Questions About St. Simons Island, GA Tides

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What time does the tide turn (slack tide) in St. Simons Island, GA today?

Slack tide in St. Simons Island, GA is approximately 2:42 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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

St. Simons Island, GA is currently in a transitional phase. Tonight's moon is 22% 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 shifting between spring and neap.

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 Waning Crescent (22% illuminated). This places St. Simons Island, GA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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