Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 5h 36m at 12:45 pm (0.6 ft)
Next high tide : 7:12 pm (6.8 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:38 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jul 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:406.411:597.25:43-0.45:59-0.16:258:33Waxing Crescent1Thu
2Fri12:336.66:29-0.46:540.16:258:33Waxing Crescent2Fri
3Sat12:517.01:296.87:20-0.47:550.26:268:33First Quarter3Sat
4Sun1:476.82:276.98:17-0.49:020.36:268:33First Quarter4Sun
5Mon2:456.63:287.19:17-0.410:100.36:278:33First Quarter5Mon
6Tue3:476.54:327.310:19-0.411:160.16:278:33Waxing Gibbous6Tue
7Wed4:516.45:367.511:20-0.56:288:32Waxing Gibbous7Wed
8Thu5:566.46:377.712:18-0.112:21-0.66:288:32Waxing Gibbous8Thu
9Fri6:566.57:337.91:18-0.31:20-0.76:298:32Waxing Gibbous9Fri
10Sat7:526.78:257.92:14-0.52:16-0.76:298:32Full Moon10Sat
11Sun8:446.79:147.83:05-0.73:08-0.76:308:32Full Moon11Sun
12Mon9:346.710:027.63:53-0.73:56-0.66:308:31Full Moon12Mon
13Tue10:236.710:487.44:37-0.64:41-0.36:318:31Waning Gibbous13Tue
14Wed11:116.611:337.05:18-0.45:240.06:318:31Waning Gibbous14Wed
15Thu11:586.55:58-0.26:070.46:328:30Waning Gibbous15Thu
16Fri12:186.712:446.46:370.16:510.86:328:30Waning Gibbous16Fri
17Sat1:026.31:296.37:170.37:381.16:338:29Third Quarter17Sat
18Sun1:466.02:146.38:000.58:301.36:348:29Third Quarter18Sun
19Mon2:325.83:006.38:460.69:251.46:348:29Third Quarter19Mon
20Tue3:205.63:496.39:340.610:201.36:358:28Third Quarter20Tue
21Wed4:115.54:416.410:250.611:131.26:358:28Waning Crescent21Wed
22Thu5:055.55:336.611:150.56:368:27Waning Crescent22Thu
23Fri5:585.76:236.912:051.012:070.36:378:26Waning Crescent23Fri
24Sat6:475.97:097.112:560.812:580.16:378:26Waning Crescent24Sat
25Sun7:336.17:537.41:440.51:48-0.16:388:25New Moon25Sun
26Mon8:176.48:367.62:300.12:36-0.36:388:25New Moon26Mon
27Tue9:006.69:197.83:14-0.23:24-0.46:398:24New Moon27Tue
28Wed9:446.910:047.83:57-0.44:10-0.56:408:23New Moon28Wed
29Thu10:327.010:527.74:40-0.64:58-0.56:408:23Waxing Crescent29Thu
30Fri11:237.211:437.55:24-0.65:48-0.36:418:22Waxing Crescent30Fri
31Sat12:177.36:10-0.66:420.06:428:21Waxing Crescent31Sat
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 3:58 pm — 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 spring phase. Tonight's moon is 92% 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 Waxing Gibbous (92% 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