Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Friday, June 26, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 12:33 pm (0.3 ft)
Next high tide : in 5h 19m at 6:23 am (5.6 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 - Feb 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:586.410:175.83:58-0.44:22-0.37:176:00Waning Gibbous1Wed
2Thu10:386.310:595.94:37-0.24:58-0.37:166:01Waning Gibbous2Thu
3Fri11:226.111:466.05:21-0.15:40-0.27:166:02Waning Gibbous3Fri
4Sat12:115.96:130.16:28-0.27:156:03Third Quarter4Sat
5Sun12:396.21:065.77:150.37:26-0.17:146:04Third Quarter5Sun
6Mon1:386.22:075.58:270.48:32-0.17:146:05Third Quarter6Mon
7Tue2:456.43:155.59:400.39:42-0.37:136:05Waning Crescent7Tue
8Wed3:586.64:275.610:490.010:51-0.57:126:06Waning Crescent8Wed
9Thu5:096.95:345.911:54-0.311:57-0.97:116:07Waning Crescent9Thu
10Fri6:137.36:346.312:53-0.77:116:08Waning Crescent10Fri
11Sat7:107.67:296.712:58-1.21:47-1.17:106:09New Moon11Sat
12Sun8:027.78:216.91:54-1.52:36-1.37:096:10New Moon12Sun
13Mon8:527.79:117.02:46-1.63:22-1.47:086:11New Moon13Mon
14Tue9:417.410:007.03:35-1.44:06-1.37:076:11Waxing Crescent14Tue
15Wed10:287.110:496.94:22-1.14:49-1.07:066:12Waxing Crescent15Wed
16Thu11:156.611:366.75:09-0.65:31-0.77:056:13Waxing Crescent16Thu
17Fri12:026.25:57-0.16:14-0.27:046:14Waxing Crescent17Fri
18Sat12:236.412:495.76:490.47:000.17:036:15First Quarter18Sat
19Sun1:116.21:385.47:450.77:510.47:026:15First Quarter19Sun
20Mon2:016.02:325.18:441.08:450.67:016:16First Quarter20Mon
21Tue2:555.83:295.09:411.09:410.77:006:17First Quarter21Tue
22Wed3:535.84:275.110:361.010:350.66:596:18Waxing Gibbous22Wed
23Thu4:515.95:225.211:270.811:280.46:586:19Waxing Gibbous23Thu
24Fri5:436.16:105.512:140.66:576:19Waxing Gibbous24Fri
25Sat6:286.46:525.812:170.212:570.46:566:20Waxing Gibbous25Sat
26Sun7:096.67:306.01:03-0.11:360.16:556:21Full Moon26Sun
27Mon7:466.88:056.21:45-0.32:13-0.16:546:22Full Moon27Mon
28Tue8:226.88:396.42:25-0.42:47-0.36:536:22Full Moon28Tue
29Wed8:576.89:146.63:04-0.53:21-0.46:526:23Full Moon29Wed
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 9:28 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 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