Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 39m at 5:21 am (0.3 ft)
Next high tide : 11:08 am (5.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:26 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - May 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:377.08:548.12:51-0.22:54-0.46:408:05New Moon1Sat
2Sun9:206.89:357.93:35-0.23:35-0.36:398:05New Moon2Sun
3Mon10:026.610:157.74:150.04:130.06:388:06New Moon3Mon
4Tue10:446.410:557.44:530.24:500.36:378:07Waxing Crescent4Tue
5Wed11:276.111:377.15:290.55:260.66:368:07Waxing Crescent5Wed
6Thu12:115.96:050.86:040.96:358:08Waxing Crescent6Thu
7Fri12:206.812:565.86:421.06:471.26:358:09Waxing Crescent7Fri
8Sat1:046.51:425.77:251.27:371.46:348:09First Quarter8Sat
9Sun1:506.32:305.78:131.28:351.56:338:10First Quarter9Sun
10Mon2:396.13:205.89:051.29:361.56:328:11First Quarter10Mon
11Tue3:316.14:136.19:581.010:361.36:328:11First Quarter11Tue
12Wed4:266.15:066.410:490.811:331.06:318:12Waxing Gibbous12Wed
13Thu5:216.25:576.811:390.56:308:13Waxing Gibbous13Thu
14Fri6:146.36:457.312:280.712:300.26:308:13Waxing Gibbous14Fri
15Sat7:046.67:317.71:210.31:20-0.16:298:14Waxing Gibbous15Sat
16Sun7:536.78:188.12:130.02:10-0.46:288:15Full Moon16Sun
17Mon8:406.99:058.23:03-0.33:00-0.66:288:15Full Moon17Mon
18Tue9:306.99:558.33:52-0.53:50-0.76:278:16Full Moon18Tue
19Wed10:226.910:498.24:41-0.64:41-0.66:278:17Waning Gibbous19Wed
20Thu11:186.911:457.95:32-0.65:34-0.56:268:17Waning Gibbous20Thu
21Fri12:176.86:25-0.46:31-0.26:268:18Waning Gibbous21Fri
22Sat12:447.71:186.87:22-0.37:340.16:258:19Third Quarter22Sat
23Sun1:447.42:186.98:22-0.28:430.36:258:19Third Quarter23Sun
24Mon2:447.13:197.09:22-0.29:520.46:248:20Third Quarter24Mon
25Tue3:446.84:207.110:19-0.310:560.46:248:20Third Quarter25Tue
26Wed4:456.65:187.311:13-0.311:550.36:238:21Waning Crescent26Wed
27Thu5:436.56:137.512:05-0.36:238:22Waning Crescent27Thu
28Fri6:376.47:027.612:510.212:54-0.36:238:22Waning Crescent28Fri
29Sat7:266.47:477.71:420.11:41-0.36:228:23New Moon29Sat
30Sun8:126.48:297.62:300.12:26-0.26:228:23New Moon30Sun
31Mon8:556.39:107.53:130.13:08-0.16:228:24New Moon31Mon
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 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 88% 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 (88% 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