Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 11m at 7:18 am (0.2 ft)
Next high tide : 1:22 pm (6.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:27 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jun 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:516.98:158.42:06-0.32:14-0.86:228:24New Moon1Thu
2Fri8:436.99:068.53:00-0.63:06-1.06:218:25New Moon2Fri
3Sat9:376.99:598.53:53-0.83:59-1.16:218:25New Moon3Sat
4Sun10:336.910:568.34:45-0.94:51-1.06:218:26Waxing Crescent4Sun
5Mon11:326.811:548.05:38-0.75:46-0.76:218:26Waxing Crescent5Mon
6Tue12:336.76:33-0.56:45-0.46:218:27Waxing Crescent6Tue
7Wed12:537.71:346.67:32-0.37:490.06:218:27First Quarter7Wed
8Thu1:527.32:356.68:32-0.28:560.26:218:28First Quarter8Thu
9Fri2:507.03:356.79:31-0.110:010.36:218:28First Quarter9Fri
10Sat3:486.74:336.810:27-0.111:010.36:218:29First Quarter10Sat
11Sun4:456.55:296.911:18-0.111:570.36:218:29Waxing Gibbous11Sun
12Mon5:406.36:207.112:06-0.16:218:30Waxing Gibbous12Mon
13Tue6:316.37:067.212:490.212:51-0.16:218:30Waxing Gibbous13Tue
14Wed7:186.27:487.31:380.11:35-0.16:218:30Waxing Gibbous14Wed
15Thu8:026.28:287.32:240.12:160.06:218:31Full Moon15Thu
16Fri8:436.19:067.23:050.12:550.16:218:31Full Moon16Fri
17Sat9:236.09:437.13:440.13:310.16:218:31Full Moon17Sat
18Sun10:025.910:206.94:200.14:060.36:218:31Full Moon18Sun
19Mon10:415.810:566.74:540.34:410.46:218:32Waning Gibbous19Mon
20Tue11:215.711:346.65:280.45:160.66:228:32Waning Gibbous20Tue
21Wed12:015.66:040.55:550.76:228:32Waning Gibbous21Wed
22Thu12:136.412:435.76:420.56:380.96:228:32Waning Gibbous22Thu
23Fri12:556.31:275.87:260.57:290.96:228:33Third Quarter23Fri
24Sat1:416.22:156.08:140.48:281.06:238:33Third Quarter24Sat
25Sun2:316.23:086.39:070.39:330.96:238:33Third Quarter25Sun
26Mon3:276.14:046.710:020.110:380.76:238:33Third Quarter26Mon
27Tue4:276.15:047.110:58-0.211:420.46:248:33Waning Crescent27Tue
28Wed5:306.26:037.611:55-0.56:248:33Waning Crescent28Wed
29Thu6:316.47:018.012:450.012:54-0.76:248:33Waning Crescent29Thu
30Fri7:296.67:578.31:46-0.41:52-1.06:258:33New Moon30Fri
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 10:20 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 62% 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 Third Quarter (62% 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