Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 5h 26m at 5:56 am (0.3 ft)
Next high tide : 11:50 am (5.9 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:26 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Nov 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:298.710:597.44:27-0.45:080.17:416:36Waning Gibbous1Tue
2Wed11:208.311:527.15:140.05:560.57:426:36Waning Gibbous2Wed
3Thu12:127.96:020.46:450.97:426:35Waning Gibbous3Thu
4Fri12:456.81:047.56:520.97:381.27:436:34Third Quarter4Fri
5Sat1:386.61:567.17:481.38:331.47:446:33Third Quarter5Sat
6Sun1:326.41:486.87:471.58:261.56:455:33Third Quarter6Sun
7Mon2:266.42:406.78:451.69:161.46:465:32Third Quarter7Mon
8Tue3:196.53:336.69:411.510:021.36:475:31Waning Crescent8Tue
9Wed4:126.64:256.610:321.410:451.16:475:30Waning Crescent9Wed
10Thu5:016.95:136.711:201.211:270.96:485:30Waning Crescent10Thu
11Fri5:457.15:586.812:071.06:495:29Waning Crescent11Fri
12Sat6:257.46:396.812:090.712:510.86:505:29New Moon12Sat
13Sun7:037.57:186.912:500.51:330.66:515:28New Moon13Sun
14Mon7:387.67:556.81:300.42:140.56:525:27New Moon14Mon
15Tue8:147.78:326.82:090.32:540.46:525:27New Moon15Tue
16Wed8:517.79:126.72:490.23:330.46:535:26Waxing Crescent16Wed
17Thu9:337.69:566.73:290.24:150.56:545:26Waxing Crescent17Thu
18Fri10:207.610:466.64:120.35:000.56:555:26Waxing Crescent18Fri
19Sat11:127.411:426.65:000.45:510.66:565:25Waxing Crescent19Sat
20Sun12:097.35:560.66:490.66:575:25First Quarter20Sun
21Mon12:406.71:087.27:010.77:500.46:585:24First Quarter21Mon
22Tue1:426.92:117.18:130.78:530.26:585:24First Quarter22Tue
23Wed2:467.23:167.09:230.59:52-0.16:595:24Waxing Gibbous23Wed
24Thu3:507.54:207.110:290.310:50-0.47:005:24Waxing Gibbous24Thu
25Fri4:527.95:217.111:310.011:45-0.67:015:23Waxing Gibbous25Fri
26Sat5:498.26:177.212:29-0.37:025:23Waxing Gibbous26Sat
27Sun6:428.47:097.312:39-0.81:24-0.47:035:23Full Moon27Sun
28Mon7:328.47:597.21:31-0.92:15-0.57:045:23Full Moon28Mon
29Tue8:208.38:487.02:20-0.83:02-0.47:045:23Full Moon29Tue
30Wed9:088.19:366.83:06-0.63:47-0.27:055:22Waning Gibbous30Wed
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 8:53 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 81% 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 Waning Gibbous (81% 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