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 5h 33m 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 - Mar 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:426.35:055.911:190.411:25-0.16:526:23Waning Crescent1Mon
2Tue5:406.76:006.412:13-0.16:516:24Waning Crescent2Tue
3Wed6:317.16:507.012:23-0.61:03-0.66:506:25New Moon3Wed
4Thu7:207.57:397.51:18-1.01:50-1.16:496:25New Moon4Thu
5Fri8:077.68:277.92:10-1.32:36-1.46:476:26New Moon5Fri
6Sat8:557.59:168.03:00-1.43:21-1.56:466:27New Moon6Sat
7Sun9:457.310:078.03:50-1.34:07-1.46:456:27Waxing Crescent7Sun
8Mon10:377.011:027.84:41-0.94:55-1.16:446:28Waxing Crescent8Mon
9Tue11:336.611:587.45:35-0.55:48-0.66:436:29Waxing Crescent9Tue
10Wed12:316.26:360.06:48-0.26:416:30First Quarter10Wed
11Thu12:587.01:335.97:450.47:560.26:406:30First Quarter11Thu
12Fri2:026.72:405.78:550.69:050.36:396:31First Quarter12Fri
13Sat3:096.53:475.710:000.610:110.36:386:32Waxing Gibbous13Sat
14Sun4:166.44:515.910:580.511:100.26:376:32Waxing Gibbous14Sun
15Mon5:156.55:466.211:500.36:356:33Waxing Gibbous15Mon
16Tue6:056.76:336.512:040.112:360.16:346:34Waxing Gibbous16Tue
17Wed6:496.87:146.812:53-0.11:170.06:336:34Full Moon17Wed
18Thu7:296.87:527.01:37-0.21:53-0.16:326:35Full Moon18Thu
19Fri8:066.88:277.02:16-0.22:25-0.16:306:36Full Moon19Fri
20Sat8:416.79:007.02:52-0.12:550.06:296:36Full Moon20Sat
21Sun9:166.59:326.93:260.03:240.16:286:37Waning Gibbous21Sun
22Mon9:516.210:046.83:580.23:530.26:276:38Waning Gibbous22Mon
23Tue10:256.010:386.64:310.54:240.46:256:38Waning Gibbous23Tue
24Wed11:025.811:166.55:050.74:590.66:246:39Waning Gibbous24Wed
25Thu11:435.65:451.05:400.86:236:40Third Quarter25Thu
26Fri12:006.312:305.66:341.26:310.96:226:40Third Quarter26Fri
27Sat12:516.31:235.67:341.37:341.06:206:41Third Quarter27Sat
28Sun1:516.32:245.78:401.28:450.96:196:41Third Quarter28Sun
29Mon2:566.43:296.09:440.99:540.66:186:42Waning Crescent29Mon
30Tue4:046.64:346.510:430.511:000.26:176:43Waning Crescent30Tue
31Wed5:077.05:327.211:380.06:156:43Waning Crescent31Wed
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