Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 8:38 pm (0.9 ft)
Next high tide : in 2h 10m at 2:14 pm (6.6 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:28 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Apr 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:496.95:49-0.46:02-0.36:146:44Waxing Crescent1Wed
2Thu12:107.612:476.66:490.17:020.26:126:45First Quarter2Thu
3Fri1:087.21:466.37:530.58:070.56:116:46First Quarter3Fri
4Sat2:076.92:476.18:570.79:110.76:106:46First Quarter4Sat
5Sun4:086.64:496.210:560.711:110.77:097:47First Quarter5Sun
6Mon5:096.65:466.311:490.77:087:47Waxing Gibbous6Mon
7Tue6:046.66:376.612:060.612:370.67:067:48Waxing Gibbous7Tue
8Wed6:536.77:226.812:570.51:200.47:057:49Waxing Gibbous8Wed
9Thu7:376.88:037.01:430.32:000.37:047:49Waxing Gibbous9Thu
10Fri8:176.98:407.22:250.22:360.27:037:50Full Moon10Fri
11Sat8:546.99:147.23:040.13:100.27:027:51Full Moon11Sat
12Sun9:306.89:477.23:410.13:410.27:007:51Full Moon12Sun
13Mon10:046.610:187.14:150.24:120.26:597:52Full Moon13Mon
14Tue10:386.410:497.04:490.34:440.46:587:53Waning Gibbous14Tue
15Wed11:146.311:256.95:230.55:180.56:577:53Waning Gibbous15Wed
16Thu11:536.15:590.65:550.66:567:54Waning Gibbous16Thu
17Fri12:056.912:376.16:420.86:400.86:557:55Waning Gibbous17Fri
18Sat12:536.81:276.17:330.97:340.96:547:55Third Quarter18Sat
19Sun1:486.82:246.18:340.98:400.96:527:56Third Quarter19Sun
20Mon2:496.83:266.39:390.89:520.86:517:57Third Quarter20Mon
21Tue3:556.94:326.710:430.511:020.46:507:57Waning Crescent21Tue
22Wed5:037.15:377.211:430.06:497:58Waning Crescent22Wed
23Thu6:087.36:377.812:080.012:40-0.46:487:59Waning Crescent23Thu
24Fri7:077.67:328.31:11-0.41:35-0.86:477:59Waning Crescent24Fri
25Sat8:017.88:248.72:09-0.82:28-1.16:468:00New Moon25Sat
26Sun8:547.89:168.83:04-1.13:19-1.36:458:01New Moon26Sun
27Mon9:467.710:078.83:57-1.14:08-1.26:448:01New Moon27Mon
28Tue10:397.511:008.54:47-1.04:57-0.96:438:02Waxing Crescent28Tue
29Wed11:347.211:538.15:38-0.75:47-0.56:428:03Waxing Crescent29Wed
30Thu12:306.86:30-0.26:390.06:418:03Waxing Crescent30Thu
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 5:26 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 neap phase. Tonight's moon is 52% 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 minimum.

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 (52% illuminated). This places St. Simons Island, GA in a neap tide cycle, so tidal ranges are near their weekly minimum 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