Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 4h 30m at 9:48 pm (0.8 ft)
Next high tide (tomorrow) : 3:31 am (5.9 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 6:28 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Mar 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:226.25:515.811:510.66:516:24Waxing Gibbous1Fri
2Sat6:096.46:356.112:020.212:340.36:506:24Waxing Gibbous2Sat
3Sun6:516.67:146.312:48-0.11:140.16:496:25Full Moon3Sun
4Mon7:296.87:496.51:31-0.31:51-0.26:486:26Full Moon4Mon
5Tue8:056.88:236.72:11-0.42:27-0.36:466:27Full Moon5Tue
6Wed8:406.88:566.82:49-0.53:01-0.46:456:27Full Moon6Wed
7Thu9:166.89:336.93:27-0.53:37-0.56:446:28Waning Gibbous7Thu
8Fri9:556.710:147.04:06-0.44:14-0.46:436:29Waning Gibbous8Fri
9Sat10:406.611:017.04:48-0.24:55-0.36:426:29Waning Gibbous9Sat
10Sun11:296.411:546.95:360.05:43-0.16:406:30Waning Gibbous10Sun
11Mon12:246.26:330.36:410.16:396:31Third Quarter11Mon
12Tue12:536.81:256.17:400.47:490.26:386:31Third Quarter12Tue
13Wed1:586.82:326.28:520.49:030.16:376:32Third Quarter13Wed
14Thu3:106.83:426.310:000.210:15-0.16:366:33Waning Crescent14Thu
15Fri4:227.04:516.711:03-0.211:21-0.46:346:33Waning Crescent15Fri
16Sat5:287.35:527.212:01-0.66:336:34Waning Crescent16Sat
17Sun6:257.66:467.612:22-0.812:55-0.96:326:35Waning Crescent17Sun
18Mon7:177.77:367.91:18-1.01:45-1.26:316:35New Moon18Mon
19Tue8:057.78:248.02:09-1.22:31-1.26:296:36New Moon19Tue
20Wed8:527.69:097.92:57-1.13:14-1.16:286:37New Moon20Wed
21Thu9:377.39:547.73:42-0.93:55-0.86:276:37Waxing Crescent21Thu
22Fri10:236.910:397.44:25-0.54:35-0.46:266:38Waxing Crescent22Fri
23Sat11:096.511:247.15:070.05:150.06:246:39Waxing Crescent23Sat
24Sun11:566.25:510.55:580.56:236:39Waxing Crescent24Sun
25Mon12:106.712:445.96:380.96:460.96:226:40First Quarter25Mon
26Tue12:596.41:345.77:311.27:411.16:216:41First Quarter26Tue
27Wed1:506.22:285.68:271.38:411.26:196:41First Quarter27Wed
28Thu2:456.13:255.69:231.39:391.16:186:42First Quarter28Thu
29Fri3:436.14:225.810:151.210:341.06:176:43Waxing Gibbous29Fri
30Sat4:396.25:136.111:040.911:260.76:166:43Waxing Gibbous30Sat
31Sun5:296.45:596.511:490.66:146:44Waxing Gibbous31Sun
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 12:39 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 neap phase. Tonight's moon is 41% 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 minimum.

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 (41% illuminated). This places St. Simons Island, GA in a neap tide cycle, so tidal ranges are near their weekly minimum 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