Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide (tomorrow) : in 6h 11m at 1:33 am (0.6 ft)
Next high tide (tomorrow) : 7:10 am (5.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Sep 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:268.311:487.75:18-0.65:57-0.17:017:49Waxing Crescent1Thu
2Fri12:238.26:08-0.36:550.37:027:48Waxing Crescent2Fri
3Sat12:457.31:228.07:030.07:580.77:027:47First Quarter3Sat
4Sun1:437.02:237.78:040.49:050.97:037:45First Quarter4Sun
5Mon2:446.73:267.59:100.610:111.07:037:44First Quarter5Mon
6Tue3:476.64:317.410:160.811:111.07:047:43Waxing Gibbous6Tue
7Wed4:516.65:327.411:180.87:057:42Waxing Gibbous7Wed
8Thu5:516.76:287.512:070.912:150.87:057:40Waxing Gibbous8Thu
9Fri6:447.07:167.612:570.81:080.77:067:39Waxing Gibbous9Fri
10Sat7:327.27:597.61:430.61:560.77:067:38Full Moon10Sat
11Sun8:147.48:387.62:250.62:400.77:077:37Full Moon11Sun
12Mon8:547.59:167.53:020.53:190.77:077:35Full Moon12Mon
13Tue9:317.59:527.33:370.53:550.87:087:34Full Moon13Tue
14Wed10:067.510:277.04:090.64:291.07:097:33Waning Gibbous14Wed
15Thu10:417.411:036.84:400.85:021.27:097:31Waning Gibbous15Thu
16Fri11:177.311:396.55:111.05:351.57:107:30Waning Gibbous16Fri
17Sat11:557.15:451.16:121.77:107:29Waning Gibbous17Sat
18Sun12:176.312:377.16:231.36:551.97:117:28Third Quarter18Sun
19Mon1:006.21:247.07:081.57:482.07:127:26Third Quarter19Mon
20Tue1:486.12:177.08:031.58:502.07:127:25Third Quarter20Tue
21Wed2:436.23:147.29:051.59:551.87:137:24Third Quarter21Wed
22Thu3:446.44:167.410:111.310:561.57:137:22Waning Crescent22Thu
23Fri4:476.75:187.711:141.011:531.07:147:21Waning Crescent23Fri
24Sat5:497.26:168.012:150.67:147:20Waning Crescent24Sat
25Sun6:457.87:108.312:480.61:140.27:157:19Waning Crescent25Sun
26Mon7:388.48:018.51:400.12:10-0.27:167:17New Moon26Mon
27Tue8:298.88:528.62:30-0.33:05-0.47:167:16New Moon27Tue
28Wed9:199.09:428.43:19-0.53:57-0.47:177:15New Moon28Wed
29Thu10:119.110:358.24:08-0.64:49-0.37:177:13Waxing Crescent29Thu
30Fri11:068.911:307.84:57-0.45:420.17:187:12Waxing Crescent30Fri
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 4:21 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 spring phase. Tonight's moon is 90% 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 (90% 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