Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 9:48 pm (0.8 ft)
Next high tide : in 5h 04m at 3:10 pm (6.9 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 6:28 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Mar 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:446.85:096.111:25-0.111:34-0.46:516:24Waning Crescent1Thu
2Fri5:487.16:086.412:23-0.46:506:24Waning Crescent2Fri
3Sat6:437.37:016.812:33-0.61:15-0.76:486:25New Moon3Sat
4Sun7:327.47:487.01:27-0.82:02-0.86:476:26New Moon4Sun
5Mon8:177.48:337.12:16-0.92:44-0.96:466:27New Moon5Mon
6Tue9:007.39:157.13:00-0.83:23-0.86:456:27New Moon6Tue
7Wed9:417.09:577.03:41-0.64:00-0.66:446:28Waxing Crescent7Wed
8Thu10:226.610:376.84:19-0.34:34-0.36:436:29Waxing Crescent8Thu
9Fri11:036.311:176.64:570.15:080.16:416:29Waxing Crescent9Fri
10Sat11:455.911:596.45:350.55:440.46:406:30Waxing Crescent10Sat
11Sun1:285.67:160.97:250.77:397:31First Quarter11Sun
12Mon1:426.22:145.38:041.28:141.07:387:32First Quarter12Mon
13Tue2:306.03:055.29:011.39:111.17:367:32First Quarter13Tue
14Wed3:245.94:025.210:021.410:121.07:357:33First Quarter14Wed
15Thu4:235.95:015.311:011.211:120.97:347:34Waxing Gibbous15Thu
16Fri5:236.15:575.611:561.07:337:34Waxing Gibbous16Fri
17Sat6:186.46:476.012:080.612:470.77:317:35Waxing Gibbous17Sat
18Sun7:076.87:326.51:020.21:340.37:307:36Waxing Gibbous18Sun
19Mon7:517.18:136.91:52-0.22:19-0.17:297:36Full Moon19Mon
20Tue8:347.48:557.32:40-0.53:01-0.57:287:37Full Moon20Tue
21Wed9:177.59:377.63:26-0.83:43-0.77:277:38Full Moon21Wed
22Thu10:017.510:227.84:12-0.94:24-0.87:257:38Full Moon22Thu
23Fri10:487.311:117.84:58-0.85:08-0.77:247:39Waning Gibbous23Fri
24Sat11:387.05:47-0.65:54-0.57:237:39Waning Gibbous24Sat
25Sun12:037.712:336.76:41-0.26:46-0.27:217:40Waning Gibbous25Sun
26Mon1:017.41:316.47:430.27:470.27:207:41Third Quarter26Mon
27Tue2:037.22:346.28:520.48:580.47:197:41Third Quarter27Tue
28Wed3:107.03:426.110:020.510:110.57:187:42Third Quarter28Wed
29Thu4:216.94:526.211:080.411:200.37:167:43Waning Crescent29Thu
30Fri5:316.95:576.512:070.27:157:43Waning Crescent30Fri
31Sat6:327.16:546.812:230.11:020.07:147:44Waning Crescent31Sat
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 6:29 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 41% 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 (41% 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