Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide (tomorrow) : in 4h 25m at 1:45 am (0.8 ft)
Next high tide (tomorrow) : 7:26 am (5.8 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:38 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jun 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:076.12:386.08:320.88:471.46:228:24Third Quarter1Sun
2Mon2:545.93:276.19:190.89:451.46:228:24Third Quarter2Mon
3Tue3:445.84:176.210:060.710:411.36:218:25Third Quarter3Tue
4Wed4:365.75:076.410:530.611:341.16:218:25Waning Crescent4Wed
5Thu5:295.75:566.711:400.46:218:26Waning Crescent5Thu
6Fri6:195.86:417.012:250.912:270.26:218:26Waning Crescent6Fri
7Sat7:055.97:257.31:150.61:150.06:218:27Waning Crescent7Sat
8Sun7:496.18:077.62:030.32:03-0.26:218:27New Moon8Sun
9Mon8:326.28:507.72:500.12:50-0.36:218:28New Moon9Mon
10Tue9:166.39:357.83:34-0.23:36-0.56:208:28New Moon10Tue
11Wed10:036.410:227.84:19-0.34:23-0.56:208:29Waxing Crescent11Wed
12Thu10:536.511:137.75:04-0.45:12-0.46:208:29Waxing Crescent12Thu
13Fri11:476.65:51-0.46:04-0.36:208:29Waxing Crescent13Fri
14Sat12:077.512:456.76:41-0.47:02-0.16:218:30Waxing Crescent14Sat
15Sun1:037.31:436.87:36-0.48:070.16:218:30First Quarter15Sun
16Mon2:007.02:426.98:35-0.49:140.26:218:31First Quarter16Mon
17Tue2:596.83:437.19:34-0.410:210.26:218:31First Quarter17Tue
18Wed4:006.64:457.310:33-0.411:240.16:218:31Waxing Gibbous18Wed
19Thu5:026.45:467.511:30-0.56:218:31Waxing Gibbous19Thu
20Fri6:036.46:437.612:24-0.112:26-0.56:218:32Waxing Gibbous20Fri
21Sat6:596.47:357.71:21-0.21:21-0.56:218:32Waxing Gibbous21Sat
22Sun7:516.48:237.72:15-0.32:12-0.56:228:32Full Moon22Sun
23Mon8:406.49:097.63:04-0.43:00-0.46:228:32Full Moon23Mon
24Tue9:276.49:537.43:49-0.43:45-0.26:228:32Full Moon24Tue
25Wed10:136.310:367.14:30-0.34:260.06:238:33Waning Gibbous25Wed
26Thu10:586.111:186.85:09-0.15:050.36:238:33Waning Gibbous26Thu
27Fri11:426.05:460.15:430.66:238:33Waning Gibbous27Fri
28Sat12:006.512:276.06:220.36:230.86:238:33Waning Gibbous28Sat
29Sun12:426.31:105.96:590.47:071.16:248:33Third Quarter29Sun
30Mon1:246.01:546.07:400.57:561.36:248:33Third Quarter30Mon
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 4:35 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 spring phase. Tonight's moon is 92% 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 Waxing Gibbous (92% 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