Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 36m at 9:48 pm (0.8 ft)
Next high tide (tomorrow) : 3:31 am (5.9 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 - Jan 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:176.31:436.37:430.08:15-0.47:245:34First Quarter1Tue
2Wed2:136.32:396.08:470.29:08-0.37:245:35First Quarter2Wed
3Thu3:106.33:355.79:480.39:59-0.27:245:36First Quarter3Thu
4Fri4:056.34:305.610:440.310:48-0.27:245:36Waxing Gibbous4Fri
5Sat4:576.45:225.511:360.311:34-0.27:245:37Waxing Gibbous5Sat
6Sun5:456.56:095.612:240.27:245:38Waxing Gibbous6Sun
7Mon6:296.66:535.612:19-0.31:080.17:245:39Waxing Gibbous7Mon
8Tue7:106.77:335.61:02-0.31:480.07:245:39Full Moon8Tue
9Wed7:496.78:115.61:43-0.42:250.07:245:40Full Moon9Wed
10Thu8:266.78:485.52:21-0.42:590.07:245:41Full Moon10Thu
11Fri9:026.69:225.52:57-0.33:310.07:245:42Full Moon11Fri
12Sat9:376.49:575.43:32-0.24:030.07:245:43Waning Gibbous12Sat
13Sun10:136.310:335.44:07-0.14:360.07:245:44Waning Gibbous13Sun
14Mon10:516.111:125.44:440.05:110.17:245:45Waning Gibbous14Mon
15Tue11:336.011:575.65:260.25:520.17:245:45Waning Gibbous15Tue
16Wed12:205.86:160.46:390.17:245:46Third Quarter16Wed
17Thu12:485.71:125.77:160.57:350.07:235:47Third Quarter17Thu
18Fri1:445.92:105.68:250.58:36-0.17:235:48Third Quarter18Fri
19Sat2:476.23:155.59:360.39:41-0.37:235:49Waning Crescent19Sat
20Sun3:556.54:235.610:440.010:45-0.67:225:50Waning Crescent20Sun
21Mon5:026.95:285.911:48-0.411:49-1.07:225:51Waning Crescent21Mon
22Tue6:057.36:286.212:49-0.87:225:52Waning Crescent22Tue
23Wed7:037.67:246.512:51-1.31:45-1.27:215:53New Moon23Wed
24Thu7:587.88:186.71:49-1.62:37-1.47:215:53New Moon24Thu
25Fri8:517.89:126.82:43-1.83:26-1.67:205:54New Moon25Fri
26Sat9:447.710:056.83:35-1.74:14-1.57:205:55Waxing Crescent26Sat
27Sun10:367.310:596.74:26-1.45:01-1.37:205:56Waxing Crescent27Sun
28Mon11:286.911:526.65:17-1.05:50-1.07:195:57Waxing Crescent28Mon
29Tue12:186.46:12-0.56:39-0.67:185:58First Quarter29Tue
30Wed12:446.41:096.07:100.07:31-0.37:185:59First Quarter30Wed
31Thu1:366.22:025.68:120.38:25-0.17:176:00First Quarter31Thu
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 12:39 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 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