Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide (tomorrow) : 9:02 am (0.0 ft)
Next high tide (tomorrow) : in 5h 31m at 2:31 am (6.1 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:28 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Apr 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:478.010:128.43:58-1.34:12-1.27:127:45Full Moon1Sat
2Sun10:387.711:058.34:49-1.24:59-1.17:117:45Waning Gibbous2Sun
3Mon11:327.45:41-0.95:48-0.87:107:46Waning Gibbous3Mon
4Tue12:008.112:287.06:35-0.56:41-0.37:097:47Waning Gibbous4Tue
5Wed12:577.71:266.77:350.07:410.27:087:47Third Quarter5Wed
6Thu1:577.32:266.48:400.38:480.57:067:48Third Quarter6Thu
7Fri2:597.03:296.29:460.59:570.77:057:49Third Quarter7Fri
8Sat4:046.74:336.210:480.611:010.77:047:49Third Quarter8Sat
9Sun5:086.75:346.311:430.57:037:50Waning Crescent9Sun
10Mon6:066.76:286.612:000.712:340.47:027:51Waning Crescent10Mon
11Tue6:566.87:156.912:530.51:200.37:007:51Waning Crescent11Tue
12Wed7:406.97:577.11:410.42:010.26:597:52Waning Crescent12Wed
13Thu8:206.98:357.32:250.32:390.16:587:53New Moon13Thu
14Fri8:586.89:107.43:040.23:130.16:577:53New Moon14Fri
15Sat9:346.79:447.33:400.23:450.16:567:54New Moon15Sat
16Sun10:096.510:177.34:130.34:160.26:557:55New Moon16Sun
17Mon10:436.310:507.14:450.44:480.46:547:55Waxing Crescent17Mon
18Tue11:176.111:257.05:170.65:200.66:537:56Waxing Crescent18Tue
19Wed11:545.95:510.85:560.86:517:57Waxing Crescent19Wed
20Thu12:046.912:355.86:311.06:391.06:507:57Waxing Crescent20Thu
21Fri12:496.81:215.77:181.17:301.16:497:58First Quarter21Fri
22Sat1:406.72:155.88:151.18:331.16:487:59First Quarter22Sat
23Sun2:376.73:155.99:191.09:421.06:477:59First Quarter23Sun
24Mon3:406.84:206.310:230.810:500.76:468:00First Quarter24Mon
25Tue4:467.05:256.811:240.411:550.26:458:01Waxing Gibbous25Tue
26Wed5:507.26:247.412:21-0.16:448:01Waxing Gibbous26Wed
27Thu6:487.57:198.012:56-0.21:16-0.56:438:02Waxing Gibbous27Thu
28Fri7:437.78:118.51:55-0.72:09-0.96:428:03Full Moon28Fri
29Sat8:357.89:028.72:50-1.03:00-1.16:418:03Full Moon29Sat
30Sun9:277.79:548.83:43-1.13:50-1.16:408:04Full Moon30Sun
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 5:46 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 52% 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 (52% 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