Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 4h 41m at 5:27 am (0.1 ft)
Next high tide : 11:21 am (6.6 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 6:43 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jan 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:397.05:32-0.56:09-0.57:245:34Waning Gibbous1Sun
2Mon12:126.212:356.76:33-0.37:06-0.47:245:34Third Quarter2Mon
3Tue1:116.31:326.47:41-0.18:06-0.47:245:35Third Quarter3Tue
4Wed2:136.42:336.18:510.09:06-0.47:245:36Third Quarter4Wed
5Thu3:166.63:365.89:580.010:05-0.57:245:37Waning Crescent5Thu
6Fri4:206.74:395.811:01-0.111:03-0.67:245:37Waning Crescent6Fri
7Sat5:216.95:395.812:00-0.37:255:38Waning Crescent7Sat
8Sun6:167.06:335.812:55-0.47:255:39Waning Crescent8Sun
9Mon7:077.17:225.912:53-0.71:46-0.57:255:40New Moon9Mon
10Tue7:547.18:095.91:43-0.72:32-0.57:255:41New Moon10Tue
11Wed8:386.98:535.82:28-0.73:14-0.57:255:41New Moon11Wed
12Thu9:216.79:365.73:10-0.53:52-0.37:255:42Waxing Crescent12Thu
13Fri10:036.510:195.63:48-0.34:29-0.27:245:43Waxing Crescent13Fri
14Sat10:446.211:025.54:250.05:030.07:245:44Waxing Crescent14Sat
15Sun11:245.911:445.45:030.35:380.27:245:45Waxing Crescent15Sun
16Mon12:055.65:430.66:160.37:245:46Waxing Crescent16Mon
17Tue12:275.412:465.36:280.86:580.47:245:47First Quarter17Tue
18Wed1:115.41:315.17:221.07:450.57:245:47First Quarter18Wed
19Thu1:575.52:214.98:221.08:370.47:235:48First Quarter19Thu
20Fri2:495.63:164.89:231.09:310.37:235:49First Quarter20Fri
21Sat3:455.84:154.910:230.810:270.17:235:50Waxing Gibbous21Sat
22Sun4:426.15:115.111:200.511:22-0.27:225:51Waxing Gibbous22Sun
23Mon5:366.46:035.412:150.27:225:52Waxing Gibbous23Mon
24Tue6:276.86:515.712:17-0.51:07-0.27:225:53Full Moon24Tue
25Wed7:157.27:386.01:10-0.91:55-0.67:215:54Full Moon25Wed
26Thu8:037.58:256.32:00-1.22:41-0.97:215:55Full Moon26Thu
27Fri8:507.69:146.52:49-1.43:26-1.17:205:56Full Moon27Fri
28Sat9:397.510:056.63:38-1.54:11-1.27:205:56Waning Gibbous28Sat
29Sun10:307.310:596.74:28-1.34:57-1.27:195:57Waning Gibbous29Sun
30Mon11:226.911:546.75:21-1.05:46-1.07:195:58Waning Gibbous30Mon
31Tue12:166.56:20-0.66:39-0.87:185:59Third Quarter31Tue
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 8:24 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 84% 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 Gibbous (84% 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