Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 5h 38m at 10:49 am (0.1 ft)
Next high tide : 5:02 pm (7.5 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Feb 2075

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:156.88:345.92:14-0.62:46-0.47:176:00Full Moon1Fri
2Sat8:516.89:095.92:52-0.73:21-0.57:166:01Full Moon2Sat
3Sun9:286.89:476.03:31-0.73:56-0.57:156:02Waning Gibbous3Sun
4Mon10:096.710:296.14:10-0.64:33-0.57:156:03Waning Gibbous4Mon
5Tue10:536.511:176.24:53-0.55:14-0.57:146:04Waning Gibbous5Tue
6Wed11:426.35:42-0.26:01-0.47:136:05Waning Gibbous6Wed
7Thu12:096.312:356.16:400.06:56-0.37:126:06Third Quarter7Thu
8Fri1:066.41:345.97:480.28:00-0.37:126:07Third Quarter8Fri
9Sat2:106.42:395.79:010.29:09-0.37:116:07Third Quarter9Sat
10Sun3:206.53:495.710:120.010:17-0.57:106:08Waning Crescent10Sun
11Mon4:326.84:585.911:18-0.311:23-0.77:096:09Waning Crescent11Mon
12Tue5:387.16:016.312:19-0.67:086:10Waning Crescent12Tue
13Wed6:377.46:576.612:26-1.01:14-1.07:076:11New Moon13Wed
14Thu7:317.67:496.91:23-1.32:05-1.27:076:12New Moon14Thu
15Fri8:207.68:387.02:15-1.42:52-1.37:066:13New Moon15Fri
16Sat9:087.59:267.03:04-1.43:36-1.37:056:13New Moon16Sat
17Sun9:547.210:126.93:49-1.14:17-1.07:046:14Waxing Crescent17Sun
18Mon10:396.810:586.74:33-0.84:57-0.77:036:15Waxing Crescent18Mon
19Tue11:246.411:436.45:17-0.35:37-0.37:026:16Waxing Crescent19Tue
20Wed12:096.06:020.26:180.17:016:17Waxing Crescent20Wed
21Thu12:286.212:555.66:510.67:030.47:006:17First Quarter21Thu
22Fri1:156.01:445.37:450.97:540.66:596:18First Quarter22Fri
23Sat2:055.92:375.18:431.18:490.76:586:19First Quarter23Sat
24Sun2:595.83:345.19:401.19:440.76:576:20First Quarter24Sun
25Mon3:575.84:325.210:341.010:390.56:566:20Waxing Gibbous25Mon
26Tue4:536.05:255.411:250.811:310.36:546:21Waxing Gibbous26Tue
27Wed5:446.36:115.712:130.56:536:22Waxing Gibbous27Wed
28Thu6:296.66:536.012:210.012:570.26:526:23Waxing Gibbous28Thu
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 1:55 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 transitional phase. Tonight's moon is 22% 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 Waning Crescent (22% 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