Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide (tomorrow) : 7:18 am (0.2 ft)
Next high tide (tomorrow) : in 1h 13m at 12:48 am (6.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Apr 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:447.58:137.71:51-0.62:14-0.57:137:45Full Moon1Tue
2Wed8:317.58:577.82:41-0.72:58-0.67:127:45Full Moon2Wed
3Thu9:157.49:397.83:27-0.73:39-0.57:107:46Full Moon3Thu
4Fri9:577.210:197.64:10-0.64:16-0.37:097:47Full Moon4Fri
5Sat10:386.910:597.44:49-0.34:51-0.17:087:47Waning Gibbous5Sat
6Sun11:206.611:397.15:270.05:240.37:077:48Waning Gibbous6Sun
7Mon12:026.36:050.45:580.67:067:49Waning Gibbous7Mon
8Tue12:206.812:456.16:440.86:360.97:047:49Waning Gibbous8Tue
9Wed1:036.51:315.97:271.17:211.27:037:50Third Quarter9Wed
10Thu1:486.32:195.78:181.38:151.47:027:50Third Quarter10Thu
11Fri2:386.13:105.79:141.39:161.47:017:51Third Quarter11Fri
12Sat3:336.14:065.810:101.210:191.37:007:52Third Quarter12Sat
13Sun4:316.15:026.111:041.011:181.16:587:52Waning Crescent13Sun
14Mon5:286.35:556.511:550.76:577:53Waning Crescent14Mon
15Tue6:216.66:437.012:140.712:440.46:567:54Waning Crescent15Tue
16Wed7:096.97:287.41:080.41:310.06:557:54Waning Crescent16Wed
17Thu7:547.18:127.91:590.02:17-0.46:547:55New Moon17Thu
18Fri8:387.38:568.22:48-0.43:03-0.66:537:56New Moon18Fri
19Sat9:237.39:428.43:35-0.63:48-0.86:527:56New Moon19Sat
20Sun10:117.310:318.44:22-0.74:34-0.86:517:57Waxing Crescent20Sun
21Mon11:037.111:248.25:11-0.65:22-0.66:507:58Waxing Crescent21Mon
22Tue11:596.96:03-0.36:15-0.36:497:58Waxing Crescent22Tue
23Wed12:208.012:586.87:00-0.17:150.06:477:59Waxing Crescent23Wed
24Thu1:207.72:016.68:030.28:220.36:468:00First Quarter24Thu
25Fri2:237.43:066.69:100.39:320.46:458:00First Quarter25Fri
26Sat3:277.24:116.710:140.210:390.36:448:01First Quarter26Sat
27Sun4:327.15:156.911:140.111:420.26:438:02Waxing Gibbous27Sun
28Mon5:347.06:137.212:080.06:438:03Waxing Gibbous28Mon
29Tue6:307.17:057.512:390.012:59-0.26:428:03Waxing Gibbous29Tue
30Wed7:207.17:517.71:32-0.11:46-0.26:418:04Waxing Gibbous30Wed
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 4:03 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 72% 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 Gibbous (72% 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