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 : 8:38 pm (0.9 ft)
Next high tide : in 3h 49m at 2:14 pm (6.6 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 - Jun 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:057.31:436.37:430.18:040.46:228:24First Quarter1Tue
2Wed2:037.12:456.58:450.19:140.46:228:25First Quarter2Wed
3Thu3:047.03:486.89:46-0.110:220.26:218:25First Quarter3Thu
4Fri4:086.94:527.110:46-0.311:270.06:218:26Waxing Gibbous4Fri
5Sat5:116.95:537.511:43-0.56:218:26Waxing Gibbous5Sat
6Sun6:126.96:507.912:29-0.312:39-0.76:218:27Waxing Gibbous6Sun
7Mon7:096.97:438.11:27-0.51:33-0.86:218:27Waxing Gibbous7Mon
8Tue8:026.98:338.22:23-0.72:24-0.86:218:28Full Moon8Tue
9Wed8:526.99:218.13:14-0.83:13-0.76:218:28Full Moon9Wed
10Thu9:416.710:087.84:02-0.74:00-0.56:218:29Full Moon10Thu
11Fri10:306.510:557.54:48-0.54:44-0.26:218:29Waning Gibbous11Fri
12Sat11:196.311:427.15:31-0.25:260.16:218:29Waning Gibbous12Sat
13Sun12:086.16:140.16:090.56:218:30Waning Gibbous13Sun
14Mon12:296.812:575.96:580.36:550.96:218:30Waning Gibbous14Mon
15Tue1:166.51:455.97:430.67:451.16:218:31Third Quarter15Tue
16Wed2:026.22:335.98:290.78:401.36:218:31Third Quarter16Wed
17Thu2:496.03:215.99:160.79:381.36:218:31Third Quarter17Thu
18Fri3:395.84:116.110:030.610:331.26:218:31Third Quarter18Fri
19Sat4:305.75:016.310:490.511:261.16:218:32Waning Crescent19Sat
20Sun5:225.75:506.611:350.36:228:32Waning Crescent20Sun
21Mon6:125.86:366.912:170.912:220.26:228:32Waning Crescent21Mon
22Tue6:595.97:197.21:070.61:090.06:228:32Waning Crescent22Tue
23Wed7:436.08:017.41:560.31:56-0.26:228:33New Moon23Wed
24Thu8:266.18:447.62:420.02:43-0.46:238:33New Moon24Thu
25Fri9:096.29:287.73:28-0.23:29-0.56:238:33New Moon25Fri
26Sat9:556.310:147.84:12-0.44:16-0.56:238:33New Moon26Sat
27Sun10:446.411:057.74:57-0.45:04-0.56:248:33Waxing Crescent27Sun
28Mon11:386.411:587.55:44-0.55:55-0.46:248:33Waxing Crescent28Mon
29Tue12:356.56:34-0.46:52-0.26:248:33Waxing Crescent29Tue
30Wed12:547.31:336.77:28-0.47:550.06:258:33First Quarter30Wed
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 5:26 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 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