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 : in 2h 37m at 12:33 pm (0.3 ft)
Next high tide : 6:58 pm (6.9 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 - May 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:096.74:496.810:440.411:240.56:408:04Waxing Gibbous1Tue
2Wed5:136.85:507.411:420.06:398:05Waxing Gibbous2Wed
3Thu6:147.16:477.912:270.112:38-0.36:388:06Waxing Gibbous3Thu
4Fri7:117.37:418.41:27-0.31:34-0.76:378:07Full Moon4Fri
5Sat8:057.48:348.72:24-0.72:28-0.96:368:07Full Moon5Sat
6Sun8:587.59:268.83:18-0.93:21-1.16:358:08Full Moon6Sun
7Mon9:527.410:208.64:11-1.04:13-1.06:358:09Full Moon7Mon
8Tue10:487.211:178.35:02-0.95:05-0.76:348:09Waning Gibbous8Tue
9Wed11:467.05:55-0.65:59-0.46:338:10Waning Gibbous9Wed
10Thu12:147.912:446.86:50-0.36:570.16:328:11Waning Gibbous10Thu
11Fri1:127.51:436.77:480.08:000.56:328:11Third Quarter11Fri
12Sat2:107.12:416.68:470.29:060.86:318:12Third Quarter12Sat
13Sun3:066.73:386.69:430.310:090.96:308:13Third Quarter13Sun
14Mon4:036.54:346.710:360.311:070.96:308:13Third Quarter14Mon
15Tue4:586.35:286.811:240.36:298:14Waning Crescent15Tue
16Wed5:506.36:167.012:000.812:090.36:288:15Waning Crescent16Wed
17Thu6:396.27:007.212:490.712:520.26:288:15Waning Crescent17Thu
18Fri7:236.37:417.31:350.61:330.26:278:16Waning Crescent18Fri
19Sat8:056.38:197.42:170.52:130.26:278:17New Moon19Sat
20Sun8:446.28:567.42:560.42:510.26:268:17New Moon20Sun
21Mon9:216.19:317.33:330.43:280.26:268:18New Moon21Mon
22Tue9:576.010:057.24:070.44:030.36:258:19New Moon22Tue
23Wed10:335.910:417.14:410.44:390.46:258:19Waxing Crescent23Wed
24Thu11:095.811:207.05:150.55:160.56:248:20Waxing Crescent24Thu
25Fri11:505.85:520.55:570.66:248:20Waxing Crescent25Fri
26Sat12:036.912:355.96:330.56:450.86:238:21Waxing Crescent26Sat
27Sun12:516.81:256.17:200.57:410.86:238:22First Quarter27Sun
28Mon1:426.72:196.38:130.48:460.86:238:22First Quarter28Mon
29Tue2:386.63:186.69:120.29:540.76:228:23First Quarter29Tue
30Wed3:396.64:207.010:110.011:010.46:228:23Waxing Gibbous30Wed
31Thu4:426.65:237.511:11-0.36:228:24Waxing Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8677344)

Common Questions About St. Simons Island, GA Tides

Show All
What time does the tide turn (slack tide) in St. Simons Island, GA today?

Slack tide in St. Simons Island, GA is approximately 3:45 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 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