Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide (tomorrow) : in 6h 17m at 5:21 am (0.3 ft)
Next high tide (tomorrow) : 11:08 am (5.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:25 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Dec 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:396.74:026.410:180.710:250.17:065:22Waning Crescent1Tue
2Wed4:387.25:016.511:180.411:21-0.27:075:22Waning Crescent2Wed
3Thu5:357.65:586.812:170.07:085:22Waning Crescent3Thu
4Fri6:298.06:527.012:18-0.61:13-0.47:095:22New Moon4Fri
5Sat7:238.37:457.11:14-0.92:08-0.77:105:22New Moon5Sat
6Sun8:168.48:397.12:09-1.13:00-0.87:105:23New Moon6Sun
7Mon9:118.39:347.13:02-1.13:51-0.97:115:23Waxing Crescent7Mon
8Tue10:078.110:337.03:56-1.04:43-0.87:125:23Waxing Crescent8Tue
9Wed11:057.711:326.94:51-0.75:37-0.67:125:23Waxing Crescent9Wed
10Thu12:037.35:49-0.36:33-0.47:135:23First Quarter10Thu
11Fri12:326.81:006.96:530.17:31-0.27:145:24First Quarter11Fri
12Sat1:306.71:576.58:000.38:29-0.17:155:24First Quarter12Sat
13Sun2:286.72:546.29:050.59:23-0.17:155:24First Quarter13Sun
14Mon3:266.73:516.010:050.510:15-0.17:165:24Waxing Gibbous14Mon
15Tue4:216.74:465.911:000.511:04-0.17:165:25Waxing Gibbous15Tue
16Wed5:136.85:375.911:510.411:50-0.17:175:25Waxing Gibbous16Wed
17Thu6:006.96:245.912:390.37:185:25Waxing Gibbous17Thu
18Fri6:437.07:076.012:35-0.11:220.27:185:26Full Moon18Fri
19Sat7:237.07:476.01:17-0.22:010.17:195:26Full Moon19Sat
20Sun8:027.08:255.91:57-0.22:370.17:195:27Full Moon20Sun
21Mon8:386.99:015.82:34-0.23:110.17:205:27Full Moon21Mon
22Tue9:146.89:365.73:10-0.13:420.17:205:28Waning Gibbous22Tue
23Wed9:496.610:115.63:440.04:140.27:215:28Waning Gibbous23Wed
24Thu10:256.410:485.64:190.24:460.27:215:29Waning Gibbous24Thu
25Fri11:046.311:285.74:580.35:220.27:225:30Waning Gibbous25Fri
26Sat11:466.15:410.56:040.27:225:30Third Quarter26Sat
27Sun12:135.812:336.06:320.66:520.27:225:31Third Quarter27Sun
28Mon1:036.01:255.87:330.77:480.17:235:31Third Quarter28Mon
29Tue1:596.22:245.78:410.68:49-0.17:235:32Third Quarter29Tue
30Wed3:026.43:285.79:490.49:53-0.37:235:33Waning Crescent30Wed
31Thu4:086.74:345.910:550.17:235:33Waning Crescent31Thu
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 8:14 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 94% 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 Waning Gibbous (94% 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