Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide (tomorrow) : 5:56 am (0.3 ft)
Next high tide : in 4h 30m at 11:23 pm (6.6 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:26 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jun 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:415.96:156.811:520.46:228:24Waxing Gibbous1Wed
2Thu6:306.07:007.112:450.712:400.26:228:25Waxing Gibbous2Thu
3Fri7:176.27:437.41:350.41:280.06:218:25Full Moon3Fri
4Sat8:016.38:257.62:230.12:16-0.26:218:26Full Moon4Sat
5Sun8:466.59:097.83:09-0.23:04-0.46:218:26Full Moon5Sun
6Mon9:326.69:557.83:55-0.43:51-0.56:218:27Full Moon6Mon
7Tue10:216.610:457.84:40-0.54:39-0.56:218:27Waning Gibbous7Tue
8Wed11:146.711:387.65:27-0.55:29-0.46:218:28Waning Gibbous8Wed
9Thu12:106.76:17-0.56:24-0.26:218:28Waning Gibbous9Thu
10Fri12:347.41:086.87:10-0.57:260.06:218:29Third Quarter10Fri
11Sat1:317.22:076.98:08-0.48:330.26:218:29Third Quarter11Sat
12Sun2:306.93:077.19:07-0.49:420.36:218:30Third Quarter12Sun
13Mon3:316.74:087.210:06-0.510:480.26:218:30Third Quarter13Mon
14Tue4:336.55:097.411:03-0.511:500.16:218:30Waning Crescent14Tue
15Wed5:346.46:077.611:58-0.66:218:31Waning Crescent15Wed
16Thu6:336.47:017.712:480.012:52-0.66:218:31Waning Crescent16Thu
17Fri7:276.47:507.81:43-0.11:44-0.66:218:31New Moon17Fri
18Sat8:166.48:367.72:34-0.22:34-0.56:218:32New Moon18Sat
19Sun9:036.49:207.63:21-0.23:19-0.46:218:32New Moon19Sun
20Mon9:496.310:037.44:03-0.24:02-0.26:228:32New Moon20Mon
21Tue10:336.110:457.14:42-0.14:420.06:228:32Waxing Crescent21Tue
22Wed11:186.011:276.85:180.15:210.36:228:32Waxing Crescent22Wed
23Thu12:025.95:530.36:000.66:228:33Waxing Crescent23Thu
24Fri12:096.512:455.86:280.46:410.96:238:33Waxing Crescent24Fri
25Sat12:516.31:285.87:050.67:281.16:238:33First Quarter25Sat
26Sun1:346.02:115.97:460.68:201.26:238:33First Quarter26Sun
27Mon2:185.92:566.08:320.69:171.36:248:33First Quarter27Mon
28Tue3:055.73:456.19:220.510:151.26:248:33First Quarter28Tue
29Wed3:575.64:366.310:140.411:111.06:248:33Waxing Gibbous29Wed
30Thu4:525.75:306.611:070.36:258:33Waxing Gibbous30Thu
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 2:39 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 88% 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 Gibbous (88% 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