Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 7:35 pm (0.8 ft)
Next high tide : in 4h 07m at 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 - Apr 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:416.55:596.512:030.56:136:45Waning Crescent1Sat
2Sun7:256.87:427.012:180.41:480.17:127:45Waning Crescent2Sun
3Mon8:077.18:227.42:060.02:31-0.27:117:46New Moon3Mon
4Tue8:477.29:037.72:52-0.33:12-0.57:097:46New Moon4Tue
5Wed9:287.39:457.93:37-0.53:53-0.67:087:47New Moon5Wed
6Thu10:127.210:308.04:21-0.54:35-0.67:077:48Waxing Crescent6Thu
7Fri11:007.011:198.05:07-0.45:20-0.57:067:48Waxing Crescent7Fri
8Sat11:526.85:56-0.26:09-0.37:047:49Waxing Crescent8Sat
9Sun12:147.812:496.56:520.17:050.17:037:50Waxing Crescent9Sun
10Mon1:127.61:506.47:550.48:100.37:027:50First Quarter10Mon
11Tue2:157.32:566.39:050.59:220.47:017:51First Quarter11Tue
12Wed3:227.14:056.310:140.510:330.47:007:52First Quarter12Wed
13Thu4:317.15:146.611:180.311:380.26:597:52Waxing Gibbous13Thu
14Fri5:377.16:156.912:150.16:577:53Waxing Gibbous14Fri
15Sat6:367.37:097.312:39-0.11:08-0.16:567:54Waxing Gibbous15Sat
16Sun7:277.47:577.61:34-0.31:56-0.36:557:54Waxing Gibbous16Sun
17Mon8:147.48:417.82:25-0.42:40-0.46:547:55Full Moon17Mon
18Tue8:577.39:227.83:11-0.53:20-0.36:537:56Full Moon18Tue
19Wed9:387.110:017.73:54-0.43:57-0.26:527:56Full Moon19Wed
20Thu10:196.910:397.54:33-0.24:310.16:517:57Full Moon20Thu
21Fri11:006.611:187.25:100.15:030.36:507:58Waning Gibbous21Fri
22Sat11:416.311:576.95:470.55:360.76:497:58Waning Gibbous22Sat
23Sun12:246.06:240.86:120.96:487:59Waning Gibbous23Sun
24Mon12:386.71:085.87:051.16:541.26:478:00Waning Gibbous24Mon
25Tue1:236.41:545.77:521.37:441.46:468:00Third Quarter25Tue
26Wed2:106.22:445.78:461.48:441.56:458:01Third Quarter26Wed
27Thu3:036.13:385.89:431.39:481.46:448:02Third Quarter27Thu
28Fri4:006.14:346.010:371.110:501.26:438:02Third Quarter28Fri
29Sat4:586.35:286.411:290.811:480.96:428:03Waning Crescent29Sat
30Sun5:536.56:196.912:180.46:418:04Waning Crescent30Sun
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 4:28 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