Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 2h 49m at 6:40 pm (0.7 ft)
Next high tide (tomorrow) : 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 - Oct 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:326.32:596.88:351.89:352.07:197:10First Quarter1Tue
2Wed3:246.43:546.99:351.810:301.87:207:08First Quarter2Wed
3Thu4:206.64:507.110:351.611:231.57:217:07Waxing Gibbous3Thu
4Fri5:156.95:457.411:331.37:217:06Waxing Gibbous4Fri
5Sat6:087.36:367.712:131.112:290.97:227:05Waxing Gibbous5Sat
6Sun6:577.87:238.01:020.71:220.67:227:03Waxing Gibbous6Sun
7Mon7:438.38:098.21:510.32:140.37:237:02Full Moon7Mon
8Tue8:308.78:558.32:38-0.13:050.07:247:01Full Moon8Tue
9Wed9:178.99:448.23:24-0.33:55-0.17:247:00Full Moon9Wed
10Thu10:069.010:358.04:11-0.44:450.07:256:59Waning Gibbous10Thu
11Fri11:008.911:307.85:00-0.35:370.27:266:57Waning Gibbous11Fri
12Sat11:578.65:510.06:330.57:266:56Waning Gibbous12Sat
13Sun12:307.512:578.46:480.37:360.87:276:55Third Quarter13Sun
14Mon1:327.31:598.17:520.68:431.07:286:54Third Quarter14Mon
15Tue2:367.23:027.99:000.89:491.07:286:53Third Quarter15Tue
16Wed3:417.14:067.710:080.810:500.97:296:52Third Quarter16Wed
17Thu4:457.35:077.711:100.811:450.77:306:51Waning Crescent17Thu
18Fri5:457.56:047.712:080.77:316:50Waning Crescent18Fri
19Sat6:387.76:547.712:360.61:020.67:316:48Waning Crescent19Sat
20Sun7:257.97:407.71:230.51:510.57:326:47New Moon20Sun
21Mon8:088.18:227.72:060.42:370.57:336:46New Moon21Mon
22Tue8:488.19:027.62:460.43:180.57:346:45New Moon22Tue
23Wed9:268.09:407.43:220.53:570.67:346:44New Moon23Wed
24Thu10:037.810:197.13:560.64:330.87:356:43Waxing Crescent24Thu
25Fri10:397.610:576.84:280.85:071.07:366:42Waxing Crescent25Fri
26Sat11:167.411:376.65:001.05:421.37:376:41Waxing Crescent26Sat
27Sun11:557.15:341.26:201.57:376:40Waxing Crescent27Sun
28Mon12:196.412:377.06:131.47:021.77:386:40Waxing Crescent28Mon
29Tue1:036.31:226.86:581.67:521.77:396:39First Quarter29Tue
30Wed1:506.32:126.87:521.78:481.77:406:38First Quarter30Wed
31Thu2:416.43:056.88:531.69:451.57:406:37First 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 9:44 pm — 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