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 : in 1h 09m at 4:35 pm (0.4 ft)
Next high tide : 10:46 pm (6.7 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 - May 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:227.011:518.15:35-0.65:36-0.56:408:05Waning Gibbous1Fri
2Sat12:216.86:30-0.36:34-0.16:398:05Waning Gibbous2Sat
3Sun12:517.71:236.77:290.07:380.36:388:06Third Quarter3Sun
4Mon1:527.42:246.68:320.18:470.56:378:07Third Quarter4Mon
5Tue2:537.03:266.79:330.29:560.76:368:07Third Quarter5Tue
6Wed3:546.84:266.810:300.210:590.66:358:08Third Quarter6Wed
7Thu4:536.65:247.011:220.111:560.66:348:09Waning Crescent7Thu
8Fri5:486.56:167.212:100.16:348:09Waning Crescent8Fri
9Sat6:396.57:027.412:490.512:560.06:338:10Waning Crescent9Sat
10Sun7:256.57:447.51:370.41:380.06:328:11Waning Crescent10Sun
11Mon8:076.58:237.62:220.32:190.16:318:12New Moon11Mon
12Tue8:476.49:007.53:020.32:570.16:318:12New Moon12Tue
13Wed9:266.39:367.43:390.33:330.26:308:13New Moon13Wed
14Thu10:036.110:127.24:140.44:070.46:298:14New Moon14Thu
15Fri10:405.910:487.04:460.54:420.56:298:14Waxing Crescent15Fri
16Sat11:185.811:266.95:190.75:170.76:288:15Waxing Crescent16Sat
17Sun11:575.75:530.85:550.96:288:16Waxing Crescent17Sun
18Mon12:066.712:395.76:310.96:391.06:278:16Waxing Crescent18Mon
19Tue12:506.61:245.77:150.97:311.26:268:17First Quarter19Tue
20Wed1:386.52:145.98:050.88:321.26:268:17First Quarter20Wed
21Thu2:306.43:086.29:000.79:381.16:258:18First Quarter21Thu
22Fri3:266.44:066.69:570.410:430.86:258:19First Quarter22Fri
23Sat4:276.45:077.110:540.111:460.56:258:19Waxing Gibbous23Sat
24Sun5:296.56:067.611:51-0.26:248:20Waxing Gibbous24Sun
25Mon6:286.77:028.012:470.112:48-0.56:248:21Waxing Gibbous25Mon
26Tue7:256.97:578.41:47-0.31:46-0.86:238:21Full Moon26Tue
27Wed8:207.08:508.52:43-0.62:42-0.96:238:22Full Moon27Wed
28Thu9:157.19:458.53:37-0.83:37-1.06:238:22Full Moon28Thu
29Fri10:117.010:418.34:30-0.94:31-0.96:228:23Waning Gibbous29Fri
30Sat11:106.911:398.05:22-0.85:25-0.76:228:24Waning Gibbous30Sat
31Sun12:096.86:15-0.76:22-0.36:228:24Waning Gibbous31Sun
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 7:40 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 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