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 4h 52m 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 - Jul 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:296.57:087.912:52-0.212:52-0.86:258:33Waxing Gibbous1Sun
2Mon7:296.78:058.11:52-0.51:53-0.96:268:33Full Moon2Mon
3Tue8:266.88:588.22:48-0.82:50-1.06:268:33Full Moon3Tue
4Wed9:206.99:518.03:40-0.93:43-1.06:268:33Full Moon4Wed
5Thu10:146.910:427.84:28-1.04:34-0.86:278:33Waning Gibbous5Thu
6Fri11:076.811:327.45:15-0.95:23-0.46:278:33Waning Gibbous6Fri
7Sat11:596.76:00-0.66:120.06:288:32Waning Gibbous7Sat
8Sun12:217.012:496.66:45-0.37:030.46:288:32Waning Gibbous8Sun
9Mon1:096.61:386.57:31-0.17:560.86:298:32Third Quarter9Mon
10Tue1:566.22:266.48:170.28:521.16:298:32Third Quarter10Tue
11Wed2:445.93:146.49:040.49:471.26:308:32Third Quarter11Wed
12Thu3:335.74:046.49:520.510:401.26:308:31Third Quarter12Thu
13Fri4:255.64:556.510:400.511:311.16:318:31Waning Crescent13Fri
14Sat5:195.55:466.611:280.46:328:31Waning Crescent14Sat
15Sun6:115.66:346.812:201.012:160.46:328:30Waning Crescent15Sun
16Mon6:595.77:197.01:070.81:040.26:338:30Waning Crescent16Mon
17Tue7:435.98:007.11:530.61:510.16:338:29New Moon17Tue
18Wed8:236.08:397.32:350.42:350.06:348:29New Moon18Wed
19Thu9:026.19:177.33:150.13:18-0.16:348:28New Moon19Thu
20Fri9:406.39:567.33:530.04:00-0.16:358:28New Moon20Fri
21Sat10:206.410:377.34:31-0.24:42-0.16:368:27Waxing Crescent21Sat
22Sun11:046.611:227.25:09-0.35:270.06:368:27Waxing Crescent22Sun
23Mon11:526.85:50-0.36:150.26:378:26Waxing Crescent23Mon
24Tue12:117.012:446.96:35-0.37:100.46:378:26First Quarter24Tue
25Wed1:036.81:397.07:26-0.28:130.56:388:25First Quarter25Wed
26Thu1:596.62:387.18:24-0.29:220.66:398:25First Quarter26Thu
27Fri2:596.43:427.29:28-0.110:310.56:398:24First Quarter27Fri
28Sat4:046.34:497.410:34-0.211:360.36:408:23Waxing Gibbous28Sat
29Sun5:116.45:567.611:38-0.36:418:23Waxing Gibbous29Sun
30Mon6:166.56:577.812:380.112:41-0.46:418:22Waxing Gibbous30Mon
31Tue7:166.87:528.01:36-0.21:41-0.66:428:21Full Moon31Tue
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 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