Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide (tomorrow) : in 56m at 12:05 am (0.4 ft)
Next high tide (tomorrow) : 5:45 am (5.9 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Feb 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:176.85:485.612:03-0.27:166:01Waxing Gibbous1Tue
2Wed6:187.06:455.912:07-0.81:00-0.57:166:02Waxing Gibbous2Wed
3Thu7:127.27:376.21:05-1.01:52-0.77:156:03Full Moon3Thu
4Fri8:007.38:256.31:57-1.12:37-0.87:146:04Full Moon4Fri
5Sat8:467.29:106.42:45-1.13:19-0.87:146:04Full Moon5Sat
6Sun9:297.09:546.33:29-1.03:57-0.77:136:05Waning Gibbous6Sun
7Mon10:116.710:376.24:10-0.74:32-0.57:126:06Waning Gibbous7Mon
8Tue10:526.311:196.14:50-0.35:05-0.27:116:07Waning Gibbous8Tue
9Wed11:335.95:310.15:390.07:116:08Waning Gibbous9Wed
10Thu12:005.912:155.56:140.56:150.37:106:09Third Quarter10Thu
11Fri12:425.812:595.27:030.86:580.57:096:10Third Quarter11Fri
12Sat1:275.61:475.07:581.07:480.77:086:10Third Quarter12Sat
13Sun2:175.52:404.88:571.18:460.77:076:11Third Quarter13Sun
14Mon3:145.53:384.89:551.19:450.77:066:12Waning Crescent14Mon
15Tue4:155.74:375.010:510.910:440.57:056:13Waning Crescent15Tue
16Wed5:125.95:315.311:440.611:390.27:046:14Waning Crescent16Wed
17Thu6:036.36:185.612:330.37:036:14Waning Crescent17Thu
18Fri6:486.67:026.012:31-0.21:18-0.17:026:15New Moon18Fri
19Sat7:296.97:436.41:20-0.52:01-0.57:016:16New Moon19Sat
20Sun8:107.18:256.72:06-0.82:41-0.87:006:17New Moon20Sun
21Mon8:517.29:087.02:51-1.03:21-1.06:596:18New Moon21Mon
22Tue9:347.09:547.23:36-1.04:01-1.06:586:18Waxing Crescent22Tue
23Wed10:216.810:447.24:22-0.84:43-0.96:576:19Waxing Crescent23Wed
24Thu11:116.511:377.15:12-0.55:30-0.76:566:20Waxing Crescent24Thu
25Fri12:066.16:08-0.16:24-0.46:556:21First Quarter25Fri
26Sat12:347.01:055.87:140.37:27-0.16:546:22First Quarter26Sat
27Sun1:366.72:115.58:290.58:380.16:536:22First Quarter27Sun
28Mon2:456.63:235.49:420.59:490.16:526:23First Quarter28Mon
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 2:55 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 20% 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 Crescent (20% 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