Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 6h 40m at 10:44 pm (1.0 ft)
Next high tide (tomorrow) : 4:21 am (5.9 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:46 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Nov 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:049.110:278.03:59-0.84:42-0.57:416:36Waxing Crescent1Wed
2Thu10:588.811:227.74:48-0.55:34-0.27:426:35Waxing Crescent2Thu
3Fri11:548.45:39-0.26:280.27:436:34Waxing Crescent3Fri
4Sat12:197.312:518.06:320.37:260.67:446:34Waxing Crescent4Sat
5Sun1:177.012:487.66:310.87:260.96:445:33First Quarter5Sun
6Mon1:156.81:467.37:351.18:261.06:455:32First Quarter6Mon
7Tue2:126.62:437.08:391.39:211.06:465:31First Quarter7Tue
8Wed3:096.63:396.99:381.310:111.06:475:31Waxing Gibbous8Wed
9Thu4:056.74:326.810:321.310:570.86:485:30Waxing Gibbous9Thu
10Fri4:566.95:216.911:221.111:400.76:495:30Waxing Gibbous10Fri
11Sat5:427.26:056.912:081.06:495:29Waxing Gibbous11Sat
12Sun6:247.46:466.912:200.612:510.86:505:28Waxing Gibbous12Sun
13Mon7:027.57:246.912:590.41:310.76:515:28Full Moon13Mon
14Tue7:387.68:006.81:360.42:090.76:525:27Full Moon14Tue
15Wed8:127.68:356.62:120.42:450.66:535:27Full Moon15Wed
16Thu8:467.59:096.52:470.43:200.76:545:26Full Moon16Thu
17Fri9:217.49:446.33:220.53:550.86:555:26Waning Gibbous17Fri
18Sat10:007.310:246.23:590.64:320.86:555:25Waning Gibbous18Sat
19Sun10:437.211:106.14:390.75:150.96:565:25Waning Gibbous19Sun
20Mon11:337.25:250.86:041.06:575:25Waning Gibbous20Mon
21Tue12:026.212:277.16:190.97:020.96:585:24Third Quarter21Tue
22Wed1:006.31:257.17:240.98:050.76:595:24Third Quarter22Wed
23Thu2:016.52:287.18:340.89:080.47:005:24Third Quarter23Thu
24Fri3:066.83:327.29:430.510:080.07:015:23Waning Crescent24Fri
25Sat4:117.34:367.310:470.111:06-0.47:015:23Waning Crescent25Sat
26Sun5:137.85:367.511:49-0.37:025:23Waning Crescent26Sun
27Mon6:108.36:317.612:02-0.712:48-0.67:035:23New Moon27Mon
28Tue7:038.67:257.612:57-1.01:43-0.97:045:23New Moon28Tue
29Wed7:558.78:167.51:50-1.12:36-1.07:055:23New Moon29Wed
30Thu8:478.69:097.32:40-1.13:26-0.97:055:22New Moon30Thu
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 1:32 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 32% 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 Third Quarter (32% 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