Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 8:07 am (0.1 ft)
Next high tide : in 0m at 1:37 am (6.2 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:28 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Nov 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:048.79:247.72:59-0.33:39-0.16:415:36Waxing Crescent1Sun
2Mon9:518.310:127.33:420.04:250.26:425:36Waxing Crescent2Mon
3Tue10:408.011:026.94:250.45:110.66:425:35Waxing Crescent3Tue
4Wed11:297.611:526.65:080.85:591.06:435:34Waxing Crescent4Wed
5Thu12:187.25:541.26:491.36:445:33First Quarter5Thu
6Fri12:426.41:096.96:461.57:431.56:455:33First Quarter6Fri
7Sat1:346.32:006.77:431.78:361.56:465:32First Quarter7Sat
8Sun2:276.32:546.68:421.79:251.46:475:31First Quarter8Sun
9Mon3:206.43:476.69:381.610:121.26:475:30Waxing Gibbous9Mon
10Tue4:126.64:386.610:301.510:561.06:485:30Waxing Gibbous10Tue
11Wed5:016.95:256.711:201.211:400.76:495:29Waxing Gibbous11Wed
12Thu5:467.26:086.912:071.06:505:29Waxing Gibbous12Thu
13Fri6:267.56:486.912:220.512:530.76:515:28Full Moon13Fri
14Sat7:047.77:277.01:040.31:360.56:525:27Full Moon14Sat
15Sun7:427.98:057.01:450.12:190.36:535:27Full Moon15Sun
16Mon8:218.08:456.92:260.03:010.36:535:26Full Moon16Mon
17Tue9:038.09:296.83:08-0.13:440.26:545:26Waning Gibbous17Tue
18Wed9:508.010:186.73:510.04:290.36:555:26Waning Gibbous18Wed
19Thu10:427.811:146.64:390.15:200.46:565:25Waning Gibbous19Thu
20Fri11:397.75:320.36:170.56:575:25Waning Gibbous20Fri
21Sat12:136.612:397.56:340.57:200.56:585:24Third Quarter21Sat
22Sun1:166.61:417.37:440.58:260.46:595:24Third Quarter22Sun
23Mon2:226.82:467.38:550.59:280.26:595:24Third Quarter23Mon
24Tue3:287.13:507.210:010.310:26-0.17:005:23Waning Crescent24Tue
25Wed4:317.44:517.311:030.011:21-0.47:015:23Waning Crescent25Wed
26Thu5:297.85:487.312:01-0.37:025:23Waning Crescent26Thu
27Fri6:228.16:407.412:14-0.612:56-0.47:035:23New Moon27Fri
28Sat7:118.27:287.31:04-0.71:47-0.57:045:23New Moon28Sat
29Sun7:578.28:147.11:52-0.72:35-0.57:045:23New Moon29Sun
30Mon8:428.09:006.92:36-0.53:19-0.47:055:22New Moon30Mon
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 4:52 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 52% 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 (52% 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