Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 1h 47m at 6:40 pm (0.7 ft)
Next high tide (tomorrow) : 12:48 am (6.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jun 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:046.85:477.311:37-0.36:228:24Waxing Gibbous1Fri
2Sat6:026.86:417.612:170.012:29-0.46:218:25Waxing Gibbous2Sat
3Sun6:566.77:307.81:13-0.21:18-0.56:218:25Waxing Gibbous3Sun
4Mon7:456.78:157.82:06-0.32:06-0.56:218:26Full Moon4Mon
5Tue8:326.68:587.82:54-0.42:50-0.46:218:26Full Moon5Tue
6Wed9:166.49:407.63:39-0.33:31-0.26:218:27Full Moon6Wed
7Thu10:006.210:227.34:21-0.24:100.06:218:27Full Moon7Thu
8Fri10:436.011:037.05:000.14:470.36:218:28Waning Gibbous8Fri
9Sat11:285.811:466.75:370.35:240.66:218:28Waning Gibbous9Sat
10Sun12:135.76:150.56:020.86:218:29Waning Gibbous10Sun
11Mon12:296.412:585.66:540.76:451.16:218:29Waning Gibbous11Mon
12Tue1:126.21:435.67:370.87:341.36:218:29Third Quarter12Tue
13Wed1:576.02:295.78:240.88:301.46:218:30Third Quarter13Wed
14Thu2:435.93:175.89:120.89:301.36:218:30Third Quarter14Thu
15Fri3:335.84:076.110:010.610:291.26:218:30Third Quarter15Fri
16Sat4:265.84:596.410:500.411:270.96:218:31Waning Crescent16Sat
17Sun5:205.85:506.811:400.26:218:31Waning Crescent17Sun
18Mon6:145.96:407.212:230.612:30-0.16:218:31Waning Crescent18Mon
19Tue7:056.17:287.61:180.31:22-0.36:218:32Waning Crescent19Tue
20Wed7:546.38:177.92:120.02:14-0.66:228:32New Moon20Wed
21Thu8:446.49:068.13:03-0.33:05-0.86:228:32New Moon21Thu
22Fri9:356.59:588.13:54-0.63:57-0.96:228:32New Moon22Fri
23Sat10:306.510:538.04:44-0.74:49-0.86:228:32Waxing Crescent23Sat
24Sun11:286.511:507.85:34-0.75:43-0.76:228:33Waxing Crescent24Sun
25Mon12:286.66:27-0.66:41-0.46:238:33Waxing Crescent25Mon
26Tue12:487.61:286.77:23-0.57:45-0.16:238:33First Quarter26Tue
27Wed1:467.32:286.78:22-0.48:520.16:238:33First Quarter27Wed
28Thu2:437.03:276.99:20-0.49:570.16:248:33First Quarter28Thu
29Fri3:416.74:267.010:16-0.410:590.16:248:33First Quarter29Fri
30Sat4:406.45:247.111:10-0.411:580.16:258:33Waxing Gibbous30Sat
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 9:44 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 transitional phase. Tonight's moon is 72% 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 Gibbous (72% 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