Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide (tomorrow) : 7:18 am (0.2 ft)
Next high tide (tomorrow) : in 3h 33m at 12:48 am (6.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Feb 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:247.56:536.712:20-1.41:05-1.17:176:01Full Moon1Sat
2Sun7:197.87:476.91:18-1.71:58-1.47:166:02Full Moon2Sun
3Mon8:107.88:387.12:12-1.82:47-1.57:156:03Full Moon3Mon
4Tue9:007.79:287.03:02-1.83:33-1.57:146:03Full Moon4Tue
5Wed9:487.410:176.93:50-1.64:16-1.37:146:04Waning Gibbous5Wed
6Thu10:367.011:066.74:37-1.24:59-1.07:136:05Waning Gibbous6Thu
7Fri11:246.611:546.45:24-0.75:42-0.67:126:06Waning Gibbous7Fri
8Sat12:116.26:13-0.26:26-0.27:116:07Third Quarter8Sat
9Sun12:426.212:595.87:060.37:140.27:116:08Third Quarter9Sun
10Mon1:315.91:495.58:020.68:060.47:106:09Third Quarter10Mon
11Tue2:235.82:425.39:000.79:000.57:096:10Third Quarter11Tue
12Wed3:195.73:385.29:550.79:540.57:086:10Waning Crescent12Wed
13Thu4:155.84:345.310:470.610:470.37:076:11Waning Crescent13Thu
14Fri5:095.95:265.511:360.411:370.27:066:12Waning Crescent14Fri
15Sat5:586.26:135.812:220.27:056:13Waning Crescent15Sat
16Sun6:416.46:546.012:25-0.11:05-0.17:046:14Waning Crescent16Sun
17Mon7:206.67:336.31:09-0.31:45-0.37:036:14New Moon17Mon
18Tue7:566.88:096.51:51-0.52:23-0.57:026:15New Moon18Tue
19Wed8:326.88:456.62:31-0.63:00-0.77:016:16New Moon19Wed
20Thu9:086.89:246.83:10-0.73:36-0.77:006:17Waxing Crescent20Thu
21Fri9:476.710:066.83:50-0.74:14-0.76:596:18Waxing Crescent21Fri
22Sat10:316.610:536.94:32-0.54:56-0.66:586:18Waxing Crescent22Sat
23Sun11:206.411:456.95:19-0.35:43-0.56:576:19Waxing Crescent23Sun
24Mon12:146.26:130.06:38-0.36:566:20First Quarter24Mon
25Tue12:426.81:136.07:190.27:42-0.26:556:21First Quarter25Tue
26Wed1:446.82:195.98:320.38:53-0.26:546:21First Quarter26Wed
27Thu2:526.83:316.09:440.210:02-0.36:536:22Waxing Gibbous27Thu
28Fri4:046.94:416.210:51-0.111:08-0.66:526:23Waxing Gibbous28Fri
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 4:03 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 transitional phase. Tonight's moon is 72% 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 Gibbous (72% 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