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 (tomorrow) : in 4h 30m at 2:58 am (0.4 ft)
Next high tide (tomorrow) : 8:35 am (5.7 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 - Nov 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:448.45:330.06:230.67:416:37Waning Gibbous1Sat
2Sun12:176.911:42 AM8.05:260.56:221.06:425:36Waning Gibbous2Sun
3Mon12:176.612:417.56:260.97:251.36:425:35Third Quarter3Mon
4Tue1:176.41:407.27:321.38:281.56:435:34Third Quarter4Tue
5Wed2:176.32:386.98:381.49:241.46:445:33Third Quarter5Wed
6Thu3:176.33:356.89:381.410:141.36:455:33Waning Crescent6Thu
7Fri4:136.54:286.810:331.410:581.16:465:32Waning Crescent7Fri
8Sat5:046.85:166.811:231.211:381.06:475:31Waning Crescent8Sat
9Sun5:497.15:596.812:091.16:475:30Waning Crescent9Sun
10Mon6:297.36:406.812:160.812:530.96:485:30Waning Crescent10Mon
11Tue7:067.57:186.712:530.71:340.86:495:29New Moon11Tue
12Wed7:407.57:546.61:280.72:120.86:505:29New Moon12Wed
13Thu8:137.58:296.52:030.62:480.86:515:28New Moon13Thu
14Fri8:457.49:046.32:370.73:240.96:525:28New Moon14Fri
15Sat9:197.39:406.13:120.74:001.06:525:27Waxing Crescent15Sat
16Sun9:587.110:216.03:480.84:391.16:535:26Waxing Crescent16Sun
17Mon10:427.011:095.94:270.95:231.26:545:26Waxing Crescent17Mon
18Tue11:337.05:131.06:141.36:555:26Waxing Crescent18Tue
19Wed12:026.012:296.96:081.17:131.26:565:25First Quarter19Wed
20Thu1:006.11:286.97:151.18:140.96:575:25First Quarter20Thu
21Fri2:016.42:316.98:271.09:130.66:585:24First Quarter21Fri
22Sat3:056.83:357.09:370.710:100.26:585:24Waxing Gibbous22Sat
23Sun4:087.34:377.110:420.411:05-0.26:595:24Waxing Gibbous23Sun
24Mon5:087.95:367.211:440.011:59-0.67:005:24Waxing Gibbous24Mon
25Tue6:048.36:317.212:44-0.37:015:23Full Moon25Tue
26Wed6:568.67:237.212:52-0.81:39-0.57:025:23Full Moon26Wed
27Thu7:478.78:157.11:44-0.92:32-0.57:035:23Full Moon27Thu
28Fri8:398.69:076.92:35-0.93:23-0.47:045:23Full Moon28Fri
29Sat9:318.210:016.63:24-0.74:13-0.27:045:23Waning Gibbous29Sat
30Sun10:257.810:566.34:14-0.35:030.27:055:23Waning Gibbous30Sun
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 5:46 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 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