Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 1h 27m at 9:29 am (0.1 ft)
Next high tide : 3:40 pm (6.6 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 6:22 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jan 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:507.25:216.311:33-0.411:45-1.17:245:34Waxing Gibbous1Sun
2Mon5:507.46:196.512:33-0.77:245:35Waxing Gibbous2Mon
3Tue6:457.67:136.612:42-1.31:27-0.97:245:35Full Moon3Tue
4Wed7:367.78:036.61:35-1.42:18-1.17:245:36Full Moon4Wed
5Thu8:257.68:526.62:25-1.43:04-1.17:245:37Full Moon5Thu
6Fri9:117.49:396.43:11-1.23:47-0.97:245:38Waning Gibbous6Fri
7Sat9:577.110:266.23:55-1.04:28-0.77:245:39Waning Gibbous7Sat
8Sun10:426.711:136.04:38-0.65:07-0.47:245:39Waning Gibbous8Sun
9Mon11:276.411:595.85:21-0.25:47-0.17:245:40Waning Gibbous9Mon
10Tue12:126.06:070.26:280.27:245:41Third Quarter10Tue
11Wed12:455.712:585.76:570.57:120.37:245:42Third Quarter11Wed
12Thu1:325.61:455.47:510.78:010.47:245:43Third Quarter12Thu
13Fri2:215.52:365.38:480.88:520.47:245:44Third Quarter13Fri
14Sat3:145.63:305.29:440.79:440.37:245:44Waning Crescent14Sat
15Sun4:085.74:255.310:370.610:350.17:245:45Waning Crescent15Sun
16Mon5:006.05:175.411:290.311:26-0.17:245:46Waning Crescent16Mon
17Tue5:486.36:045.712:180.07:235:47Waning Crescent17Tue
18Wed6:326.66:485.912:16-0.41:04-0.37:235:48New Moon18Wed
19Thu7:146.87:306.21:04-0.71:49-0.67:235:49New Moon19Thu
20Fri7:547.18:116.41:49-0.92:31-0.97:235:50New Moon20Fri
21Sat8:367.28:546.52:34-1.13:13-1.17:225:51New Moon21Sat
22Sun9:207.29:406.63:18-1.23:55-1.17:225:52Waxing Crescent22Sun
23Mon10:067.110:306.74:04-1.14:39-1.17:215:52Waxing Crescent23Mon
24Tue10:576.911:236.74:53-0.95:26-1.07:215:53Waxing Crescent24Tue
25Wed11:516.65:47-0.76:19-0.97:215:54First Quarter25Wed
26Thu12:206.712:486.36:49-0.47:18-0.77:205:55First Quarter26Thu
27Fri1:196.61:496.07:58-0.18:23-0.67:205:56First Quarter27Fri
28Sat2:236.62:555.89:10-0.19:28-0.77:195:57First Quarter28Sat
29Sun3:296.64:035.810:17-0.210:31-0.87:195:58Waxing Gibbous29Sun
30Mon4:366.85:095.911:20-0.411:31-0.97:185:59Waxing Gibbous30Mon
31Tue5:387.06:076.212:18-0.67:176:00Waxing Gibbous31Tue
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 12:34 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 neap phase. Tonight's moon is 58% 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 First Quarter (58% 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