Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 3h 16m at 8:07 am (0.1 ft)
Next high tide : 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 - Jan 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:256.510:445.74:08-0.14:490.07:235:34Waxing Crescent1Fri
2Sat11:056.211:265.54:440.25:240.27:245:35Waxing Crescent2Sat
3Sun11:475.95:220.56:030.47:245:35Waxing Crescent3Sun
4Mon12:095.412:295.66:050.76:460.57:245:36First Quarter4Mon
5Tue12:545.41:135.46:560.97:340.57:245:37First Quarter5Tue
6Wed1:415.52:025.37:550.98:260.47:245:38First Quarter6Wed
7Thu2:315.62:565.28:570.99:200.27:245:38First Quarter7Thu
8Fri3:265.83:535.39:580.710:140.07:245:39Waxing Gibbous8Fri
9Sat4:226.24:505.510:570.411:08-0.37:245:40Waxing Gibbous9Sat
10Sun5:176.65:445.711:530.07:245:41Waxing Gibbous10Sun
11Mon6:087.06:346.012:02-0.712:47-0.47:245:42Waxing Gibbous11Mon
12Tue6:587.47:236.312:55-1.11:39-0.87:245:43Full Moon12Tue
13Wed7:467.78:116.51:47-1.42:28-1.17:245:43Full Moon13Wed
14Thu8:367.89:026.72:37-1.63:15-1.37:245:44Full Moon14Thu
15Fri9:277.89:556.73:27-1.74:03-1.47:245:45Waning Gibbous15Fri
16Sat10:207.610:516.74:18-1.54:52-1.37:245:46Waning Gibbous16Sat
17Sun11:157.311:486.65:12-1.35:44-1.17:235:47Waning Gibbous17Sun
18Mon12:116.96:11-0.96:40-0.97:235:48Third Quarter18Mon
19Tue12:476.61:086.57:15-0.57:39-0.77:235:49Third Quarter19Tue
20Wed1:476.52:076.28:22-0.38:41-0.67:235:50Third Quarter20Wed
21Thu2:496.43:085.99:28-0.29:41-0.57:225:51Third Quarter21Thu
22Fri3:526.54:115.810:30-0.210:38-0.57:225:51Waning Crescent22Fri
23Sat4:536.55:105.811:28-0.311:33-0.57:215:52Waning Crescent23Sat
24Sun5:486.76:035.812:22-0.47:215:53Waning Crescent24Sun
25Mon6:376.86:515.912:25-0.61:11-0.57:215:54Waning Crescent25Mon
26Tue7:216.87:356.01:12-0.61:55-0.57:205:55New Moon26Tue
27Wed8:026.88:166.01:55-0.62:34-0.67:205:56New Moon27Wed
28Thu8:416.78:556.02:34-0.63:10-0.57:195:57New Moon28Thu
29Fri9:196.59:335.93:10-0.53:43-0.47:195:58New Moon29Fri
30Sat9:556.310:105.83:43-0.34:15-0.37:185:59Waxing Crescent30Sat
31Sun10:316.110:475.74:16-0.14:46-0.17:175:59Waxing Crescent31Sun
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 11:10 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 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