Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 1h 24m at 2:00 pm (0.3 ft)
Next high tide : 8:20 pm (7.0 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:24 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Mar 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:526.111:156.94:55-0.15:10-0.36:516:24Waxing Crescent1Sun
2Mon11:425.95:450.26:00-0.16:506:24First Quarter2Mon
3Tue12:106.812:405.76:460.57:020.16:496:25First Quarter3Tue
4Wed1:126.71:455.68:000.78:140.26:486:26First Quarter4Wed
5Thu2:206.62:585.69:160.69:290.16:476:26First Quarter5Thu
6Fri3:346.74:135.810:260.410:39-0.26:456:27Waxing Gibbous6Fri
7Sat4:466.95:206.311:280.011:44-0.66:446:28Waxing Gibbous7Sat
8Sun6:487.27:196.81:24-0.47:437:29Waxing Gibbous8Sun
9Mon7:437.58:117.31:43-0.92:15-0.87:427:29Full Moon9Mon
10Tue8:327.68:587.62:36-1.13:01-1.07:417:30Full Moon10Tue
11Wed9:177.59:437.73:26-1.23:43-1.17:397:31Full Moon11Wed
12Thu10:017.310:277.64:12-1.14:23-0.97:387:31Full Moon12Thu
13Fri10:457.011:097.44:55-0.85:00-0.67:377:32Waning Gibbous13Fri
14Sat11:286.611:527.15:37-0.35:36-0.27:367:33Waning Gibbous14Sat
15Sun12:126.26:190.26:130.27:347:33Waning Gibbous15Sun
16Mon12:366.712:575.87:020.66:530.67:337:34Waning Gibbous16Mon
17Tue1:216.41:455.57:511.17:391.07:327:35Third Quarter17Tue
18Wed2:106.12:365.38:471.38:361.27:317:35Third Quarter18Wed
19Thu3:055.83:315.39:461.49:401.37:297:36Third Quarter19Thu
20Fri4:055.84:315.310:431.410:431.27:287:37Third Quarter20Fri
21Sat5:065.85:295.611:361.211:411.07:277:37Waning Crescent21Sat
22Sun6:016.06:215.912:240.97:267:38Waning Crescent22Sun
23Mon6:496.37:066.312:340.81:080.67:247:39Waning Crescent23Mon
24Tue7:316.57:466.81:240.51:500.27:237:39Waning Crescent24Tue
25Wed8:106.78:247.22:100.22:30-0.17:227:40New Moon25Wed
26Thu8:476.89:017.52:53-0.13:08-0.37:217:41New Moon26Thu
27Fri9:256.89:407.73:35-0.23:47-0.47:197:41New Moon27Fri
28Sat10:056.710:227.84:17-0.34:26-0.47:187:42Waxing Crescent28Sat
29Sun10:506.611:097.75:00-0.25:08-0.37:177:43Waxing Crescent29Sun
30Mon11:396.45:470.05:55-0.17:167:43Waxing Crescent30Mon
31Tue12:027.612:346.26:400.36:490.17:147:44Waxing Crescent31Tue
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 5:10 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 98% 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 Full Moon (98% 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