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 1h 55m at 7:35 pm (0.8 ft)
Next high tide (tomorrow) : 1:37 am (6.2 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 - Apr 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:556.14:225.810:341.210:401.27:137:44Third Quarter1Wed
2Thu4:546.15:195.911:251.011:351.17:127:45Waning Crescent2Thu
3Fri5:496.26:116.212:130.97:117:46Waning Crescent3Fri
4Sat6:396.46:576.512:260.912:570.67:097:46Waning Crescent4Sat
5Sun7:226.67:386.81:140.61:390.47:087:47Waning Crescent5Sun
6Mon8:026.88:157.11:590.42:190.17:077:48New Moon6Mon
7Tue8:396.98:517.32:410.12:57-0.17:067:48New Moon7Tue
8Wed9:146.99:267.53:210.03:34-0.27:057:49New Moon8Wed
9Thu9:506.810:037.63:59-0.14:11-0.27:037:50New Moon9Thu
10Fri10:296.710:447.64:39-0.14:49-0.27:027:50Waxing Crescent10Fri
11Sat11:136.611:317.65:200.05:310.07:017:51Waxing Crescent11Sat
12Sun12:026.56:060.26:180.17:007:52Waxing Crescent12Sun
13Mon12:237.512:576.46:590.47:140.36:597:52First Quarter13Mon
14Tue1:207.41:576.38:010.68:210.56:587:53First Quarter14Tue
15Wed2:227.23:036.49:110.69:330.56:567:54First Quarter15Wed
16Thu3:297.24:126.610:190.410:440.36:557:54First Quarter16Thu
17Fri4:387.25:216.911:230.111:500.06:547:55Waxing Gibbous17Fri
18Sat5:457.36:237.412:21-0.26:537:56Waxing Gibbous18Sat
19Sun6:457.57:187.812:51-0.31:16-0.56:527:56Waxing Gibbous19Sun
20Mon7:387.78:098.11:48-0.62:07-0.76:517:57Full Moon20Mon
21Tue8:287.78:568.32:41-0.82:54-0.86:507:58Full Moon21Tue
22Wed9:157.69:418.23:30-0.83:38-0.76:497:58Full Moon22Wed
23Thu10:017.310:258.04:16-0.74:20-0.56:487:59Full Moon23Thu
24Fri10:477.011:107.75:00-0.45:00-0.16:478:00Waning Gibbous24Fri
25Sat11:336.711:557.35:430.05:390.36:468:00Waning Gibbous25Sat
26Sun12:206.46:250.46:190.76:458:01Waning Gibbous26Sun
27Mon12:417.01:086.17:100.87:021.16:448:02Waning Gibbous27Mon
28Tue1:286.61:575.97:591.17:531.46:438:02Third Quarter28Tue
29Wed2:176.32:475.88:511.28:521.56:428:03Third Quarter29Wed
30Thu3:096.23:405.99:441.29:521.56:418:04Third Quarter30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8677344)

Common Questions About St. Simons Island, GA Tides

Show All
What time does the tide turn (slack tide) in St. Simons Island, GA today?

Slack tide in St. Simons Island, GA is approximately 10:36 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 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