Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 10:10 pm (0.7 ft)
Next high tide : in 5h 18m at 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 - Mar 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:226.85:536.312:00-0.26:516:23Waxing Gibbous1Wed
2Thu6:157.06:436.612:13-0.512:50-0.46:506:24Waxing Gibbous2Thu
3Fri7:027.17:286.81:04-0.71:35-0.56:496:25Full Moon3Fri
4Sat7:457.18:096.91:50-0.72:15-0.56:486:26Full Moon4Sat
5Sun8:257.18:476.92:32-0.72:51-0.56:476:26Full Moon5Sun
6Mon9:036.99:256.83:10-0.53:23-0.46:456:27Full Moon6Mon
7Tue9:406.710:016.73:46-0.33:53-0.26:446:28Waning Gibbous7Tue
8Wed10:186.410:366.54:20-0.14:230.06:436:28Waning Gibbous8Wed
9Thu10:556.111:136.34:540.34:550.36:426:29Waning Gibbous9Thu
10Fri11:355.911:526.25:300.65:300.56:416:30Waning Gibbous10Fri
11Sat12:165.76:120.86:120.76:396:31Third Quarter11Sat
12Sun12:356.02:025.58:021.08:040.87:387:31Third Quarter12Sun
13Mon2:236.02:545.59:021.19:040.97:377:32Third Quarter13Mon
14Tue3:206.03:525.610:051.010:100.87:367:33Third Quarter14Tue
15Wed4:236.14:535.811:050.811:140.57:357:33Waning Crescent15Wed
16Thu5:266.45:536.212:030.47:337:34Waning Crescent16Thu
17Fri6:256.86:486.812:150.112:570.07:327:35Waning Crescent17Fri
18Sat7:187.27:387.31:13-0.31:48-0.57:317:35Waning Crescent18Sat
19Sun8:077.68:277.82:08-0.82:38-0.97:307:36New Moon19Sun
20Mon8:557.89:158.23:00-1.13:25-1.27:287:37New Moon20Mon
21Tue9:447.810:058.33:51-1.34:12-1.47:277:37New Moon21Tue
22Wed10:357.710:578.34:40-1.24:59-1.37:267:38Waxing Crescent22Wed
23Thu11:297.411:518.15:31-1.05:48-1.07:257:39Waxing Crescent23Thu
24Fri12:257.06:25-0.66:42-0.67:237:39Waxing Crescent24Fri
25Sat12:487.81:246.77:25-0.27:42-0.27:227:40First Quarter25Sat
26Sun1:487.42:256.48:310.28:480.17:217:41First Quarter26Sun
27Mon2:507.13:296.39:390.49:560.37:207:41First Quarter27Mon
28Tue3:546.94:356.310:430.411:000.37:187:42First Quarter28Tue
29Wed4:586.85:376.411:410.411:590.27:177:42Waxing Gibbous29Wed
30Thu5:586.86:326.712:330.27:167:43Waxing Gibbous30Thu
31Fri6:506.97:216.912:530.11:210.17:157:44Waxing Gibbous31Fri
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 6:55 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