Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide (tomorrow) : 5:56 am (0.3 ft)
Next high tide : in 3h 29m at 11:23 pm (6.6 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:26 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Oct 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:558.011:207.14:520.55:241.07:197:10Waning Gibbous1Fri
2Sat11:377.85:270.86:041.47:207:09Waning Gibbous2Sat
3Sun12:046.712:207.56:031.26:451.87:207:08Waning Gibbous3Sun
4Mon12:496.41:067.26:431.57:312.17:217:06Third Quarter4Mon
5Tue1:366.11:547.07:301.88:252.37:227:05Third Quarter5Tue
6Wed2:266.02:466.88:252.09:232.37:227:04Third Quarter6Wed
7Thu3:205.93:416.89:262.010:202.27:237:03Third Quarter7Thu
8Fri4:166.04:386.910:261.911:122.07:247:01Waning Crescent8Fri
9Sat5:126.35:327.111:221.711:591.67:247:00Waning Crescent9Sat
10Sun6:036.66:217.412:141.47:256:59Waning Crescent10Sun
11Mon6:487.17:057.612:441.31:051.17:266:58Waning Crescent11Mon
12Tue7:307.57:477.81:270.91:530.87:266:57New Moon12Tue
13Wed8:108.08:287.92:090.52:410.57:276:56New Moon13Wed
14Thu8:508.39:107.82:510.33:270.37:286:54New Moon14Thu
15Fri9:328.59:547.73:330.14:130.37:286:53New Moon15Fri
16Sat10:188.510:427.44:150.15:000.57:296:52Waxing Crescent16Sat
17Sun11:098.411:367.25:000.25:510.77:306:51Waxing Crescent17Sun
18Mon12:068.25:500.56:491.07:306:50Waxing Crescent18Mon
19Tue12:356.91:097.96:470.87:551.27:316:49First Quarter19Tue
20Wed1:386.72:157.77:541.19:051.37:326:48First Quarter20Wed
21Thu2:456.63:247.69:101.210:121.27:336:47First Quarter21Thu
22Fri3:536.74:337.510:221.111:120.97:336:46Waxing Gibbous22Fri
23Sat5:017.05:367.611:280.97:346:45Waxing Gibbous23Sat
24Sun6:017.46:327.712:070.612:280.77:356:44Waxing Gibbous24Sun
25Mon6:557.87:217.712:570.41:230.67:366:43Waxing Gibbous25Mon
26Tue7:428.18:057.71:430.22:130.47:366:42Full Moon26Tue
27Wed8:248.28:477.52:260.12:590.47:376:41Full Moon27Wed
28Thu9:058.39:277.33:060.23:410.57:386:40Full Moon28Thu
29Fri9:438.110:077.03:430.34:200.77:396:39Full Moon29Fri
30Sat10:227.910:476.74:180.64:561.07:396:38Waning Gibbous30Sat
31Sun10:017.610:296.43:520.84:311.36:405:37Waning Gibbous31Sun
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 2:39 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 spring phase. Tonight's moon is 88% 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 Waning Gibbous (88% 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