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 : in 59m at 11:04 am (-0.2 ft)
Next high tide : 5:16 pm (7.4 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 - Nov 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:497.79:126.62:510.73:241.06:415:37Waning Gibbous1Mon
2Tue9:257.69:486.53:260.83:591.16:425:36Waning Gibbous2Tue
3Wed10:057.510:296.44:040.84:381.26:425:35Waning Gibbous3Wed
4Thu10:517.411:176.44:451.05:221.36:435:34Waning Gibbous4Thu
5Fri11:427.45:331.16:141.36:445:33Third Quarter5Fri
6Sat12:116.412:387.36:301.17:131.26:455:33Third Quarter6Sat
7Sun1:116.61:377.37:371.18:161.06:465:32Third Quarter7Sun
8Mon2:136.92:407.38:481.09:180.76:465:31Third Quarter8Mon
9Tue3:187.23:447.49:550.710:170.36:475:31Waning Crescent9Tue
10Wed4:237.74:477.510:590.311:15-0.16:485:30Waning Crescent10Wed
11Thu5:238.25:457.712:00-0.16:495:29Waning Crescent11Thu
12Fri6:198.66:407.812:10-0.412:58-0.36:505:29New Moon12Fri
13Sat7:128.97:337.81:04-0.71:52-0.56:515:28New Moon13Sat
14Sun8:038.98:247.71:57-0.82:44-0.66:525:28New Moon14Sun
15Mon8:558.79:167.42:47-0.73:35-0.46:525:27Waxing Crescent15Mon
16Tue9:478.410:107.13:36-0.54:24-0.16:535:27Waxing Crescent16Tue
17Wed10:418.011:046.94:25-0.15:130.26:545:26Waxing Crescent17Wed
18Thu11:347.511:596.65:150.46:050.66:555:26Waxing Crescent18Thu
19Fri12:277.16:090.86:580.86:565:25First Quarter19Fri
20Sat12:526.41:196.77:081.27:521.06:575:25First Quarter20Sat
21Sun1:466.32:126.58:091.48:441.06:585:25First Quarter21Sun
22Mon2:396.33:046.39:081.59:321.06:585:24First Quarter22Mon
23Tue3:326.53:576.210:021.410:170.86:595:24Waxing Gibbous23Tue
24Wed4:236.64:486.210:521.211:010.77:005:24Waxing Gibbous24Wed
25Thu5:116.95:356.211:391.111:430.57:015:23Waxing Gibbous25Thu
26Fri5:557.16:196.312:240.97:025:23Waxing Gibbous26Fri
27Sat6:367.26:596.312:260.41:070.77:035:23Full Moon27Sat
28Sun7:147.47:376.31:070.21:480.57:045:23Full Moon28Sun
29Mon7:507.48:126.31:480.12:270.47:045:23Full Moon29Mon
30Tue8:267.58:496.32:270.13:040.47:055:23Full Moon30Tue
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 2:10 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 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