Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 4h 58m at 11:53 pm (0.8 ft)
Next high tide (tomorrow) : 5:32 am (6.1 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - May 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:467.38:078.11:53-0.32:08-0.66:398:05New Moon1Fri
2Sat8:337.38:528.22:44-0.42:53-0.76:388:06New Moon2Sat
3Sun9:187.19:358.13:31-0.43:35-0.56:388:06New Moon3Sun
4Mon10:026.810:167.94:15-0.34:15-0.36:378:07New Moon4Mon
5Tue10:466.510:587.64:550.04:530.16:368:08Waxing Crescent5Tue
6Wed11:316.211:417.25:350.35:300.46:358:08Waxing Crescent6Wed
7Thu12:165.96:140.76:090.86:348:09Waxing Crescent7Thu
8Fri12:266.91:035.76:551.06:531.16:348:10Waxing Crescent8Fri
9Sat1:126.61:515.67:401.37:441.46:338:10First Quarter9Sat
10Sun2:006.32:415.58:311.48:421.56:328:11First Quarter10Sun
11Mon2:516.23:345.69:241.39:441.56:318:12First Quarter11Mon
12Tue3:446.14:285.810:161.210:421.46:318:12First Quarter12Tue
13Wed4:396.15:206.111:051.011:381.16:308:13Waxing Gibbous13Wed
14Thu5:336.26:096.511:520.76:298:14Waxing Gibbous14Thu
15Fri6:226.36:536.912:300.812:380.46:298:14Waxing Gibbous15Fri
16Sat7:096.57:347.41:210.51:230.16:288:15Waxing Gibbous16Sat
17Sun7:536.68:167.72:100.22:09-0.16:288:16Full Moon17Sun
18Mon8:366.78:587.92:58-0.12:54-0.36:278:16Full Moon18Mon
19Tue9:226.79:438.03:44-0.33:39-0.46:268:17Full Moon19Tue
20Wed10:106.710:328.04:31-0.44:26-0.46:268:18Waning Gibbous20Wed
21Thu11:026.611:277.85:20-0.35:16-0.36:258:18Waning Gibbous21Thu
22Fri11:596.56:12-0.26:10-0.16:258:19Waning Gibbous22Fri
23Sat12:267.61:006.47:090.07:110.26:258:20Waning Gibbous23Sat
24Sun1:277.42:026.48:100.18:210.46:248:20Third Quarter24Sun
25Mon2:297.13:056.69:130.09:320.46:248:21Third Quarter25Mon
26Tue3:326.94:086.810:13-0.110:400.46:238:21Third Quarter26Tue
27Wed4:356.85:107.111:09-0.311:430.26:238:22Waning Crescent27Wed
28Thu5:366.76:067.412:02-0.46:238:23Waning Crescent28Thu
29Fri6:316.76:587.612:410.112:52-0.56:228:23Waning Crescent29Fri
30Sat7:226.77:457.81:35-0.11:40-0.56:228:24Waning Crescent30Sat
31Sun8:096.68:287.82:25-0.22:25-0.46:228:24New Moon31Sun
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 2:42 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 transitional phase. Tonight's moon is 22% 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 shifting between spring and neap.

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 Crescent (22% illuminated). This places St. Simons Island, GA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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