Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide (tomorrow) : 7:18 am (0.2 ft)
Next high tide (tomorrow) : in 1h 55m at 12:48 am (6.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jan 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:055.412:235.76:050.76:490.57:245:34First Quarter1Mon
2Tue12:515.51:115.67:000.87:410.47:245:35First Quarter2Tue
3Wed1:425.72:045.58:040.88:370.27:245:36First Quarter3Wed
4Thu2:385.93:045.59:110.69:340.07:245:36First Quarter4Thu
5Fri3:386.34:075.610:170.410:32-0.47:245:37Waxing Gibbous5Fri
6Sat4:396.75:095.811:200.011:31-0.77:245:38Waxing Gibbous6Sat
7Sun5:387.26:076.112:21-0.47:245:39Waxing Gibbous7Sun
8Mon6:347.67:016.412:28-1.11:18-0.87:245:39Full Moon8Mon
9Tue7:287.97:556.61:25-1.52:12-1.17:245:40Full Moon9Tue
10Wed8:218.08:486.72:19-1.73:03-1.47:245:41Full Moon10Wed
11Thu9:158.09:446.73:12-1.83:53-1.47:245:42Waning Gibbous11Thu
12Fri10:107.810:416.74:04-1.74:43-1.37:245:43Waning Gibbous12Fri
13Sat11:057.411:386.64:58-1.45:34-1.17:245:44Waning Gibbous13Sat
14Sun12:007.05:55-1.06:28-0.97:245:45Waning Gibbous14Sun
15Mon12:356.512:556.66:57-0.57:25-0.67:245:45Third Quarter15Mon
16Tue1:336.41:506.28:02-0.28:22-0.47:245:46Third Quarter16Tue
17Wed2:306.32:465.89:050.09:18-0.37:245:47Third Quarter17Wed
18Thu3:296.23:445.610:050.110:12-0.27:235:48Waning Crescent18Thu
19Fri4:266.24:415.511:010.111:03-0.27:235:49Waning Crescent19Fri
20Sat5:206.35:335.511:530.011:51-0.27:235:50Waning Crescent20Sat
21Sun6:086.46:215.612:41-0.17:225:51Waning Crescent21Sun
22Mon6:526.57:055.712:37-0.31:25-0.27:225:52New Moon22Mon
23Tue7:336.67:455.71:20-0.32:05-0.27:225:53New Moon23Tue
24Wed8:116.68:235.81:59-0.42:41-0.37:215:53New Moon24Wed
25Thu8:476.58:595.72:36-0.43:14-0.37:215:54New Moon25Thu
26Fri9:216.49:345.73:10-0.33:46-0.27:205:55Waxing Crescent26Fri
27Sat9:556.210:095.63:43-0.24:18-0.27:205:56Waxing Crescent27Sat
28Sun10:296.010:465.64:17-0.14:50-0.17:195:57Waxing Crescent28Sun
29Mon11:055.911:265.74:540.15:260.07:195:58Waxing Crescent29Mon
30Tue11:465.75:360.36:080.07:185:59First Quarter30Tue
31Wed12:115.812:335.56:260.46:570.17:176:00First Quarter31Wed
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 4:03 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 transitional phase. Tonight's moon is 72% 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 shifting between spring and neap.

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 (72% illuminated). This places St. Simons Island, GA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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