Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 6h 07m at 9:02 am (0.0 ft)
Next high tide : 3:10 pm (6.9 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 6:28 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Mar 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:126.312:425.86:470.66:550.36:516:23Third Quarter1Sat
2Sun1:086.31:395.87:520.68:000.36:506:24Third Quarter2Sun
3Mon2:116.42:445.89:030.59:110.16:496:25Third Quarter3Mon
4Tue3:216.63:536.110:110.310:21-0.26:486:26Waning Crescent4Tue
5Wed4:326.95:006.511:15-0.211:28-0.66:476:26Waning Crescent5Wed
6Thu5:377.36:017.112:14-0.76:466:27Waning Crescent6Thu
7Fri6:357.76:577.612:30-1.01:09-1.16:446:28New Moon7Fri
8Sat7:298.07:497.91:28-1.42:00-1.56:436:28New Moon8Sat
9Sun8:208.08:418.12:22-1.62:49-1.76:426:29New Moon9Sun
10Mon9:117.99:328.13:13-1.63:36-1.66:416:30Waxing Crescent10Mon
11Tue10:027.610:237.94:03-1.44:23-1.46:406:31Waxing Crescent11Tue
12Wed10:547.211:157.64:53-1.05:10-0.96:386:31Waxing Crescent12Wed
13Thu11:466.85:45-0.46:00-0.46:376:32Waxing Crescent13Thu
14Fri12:087.212:406.36:410.16:550.16:366:33First Quarter14Fri
15Sat1:016.81:356.07:420.57:540.46:356:33First Quarter15Sat
16Sun1:566.52:325.88:440.88:550.76:336:34First Quarter16Sun
17Mon2:546.33:325.79:420.99:530.76:326:35First Quarter17Mon
18Tue3:536.24:305.810:350.910:470.66:316:35Waxing Gibbous18Tue
19Wed4:506.35:226.111:240.711:380.56:306:36Waxing Gibbous19Wed
20Thu5:406.56:096.312:080.56:286:37Waxing Gibbous20Thu
21Fri6:256.66:516.612:250.312:490.46:276:37Waxing Gibbous21Fri
22Sat7:056.87:286.81:080.11:260.26:266:38Full Moon22Sat
23Sun7:426.88:036.91:480.02:010.06:256:39Full Moon23Sun
24Mon8:176.88:357.02:26-0.12:340.06:236:39Full Moon24Mon
25Tue8:516.79:067.03:01-0.13:060.06:226:40Full Moon25Tue
26Wed9:256.69:387.03:360.03:380.06:216:41Waning Gibbous26Wed
27Thu10:016.510:157.04:120.14:130.16:206:41Waning Gibbous27Thu
28Fri10:426.410:597.04:510.34:520.26:186:42Waning Gibbous28Fri
29Sat11:296.311:496.95:350.55:380.46:176:42Waning Gibbous29Sat
30Sun12:226.26:290.66:340.56:166:43Third Quarter30Sun
31Mon12:466.91:216.27:330.77:410.66:156:44Third Quarter31Mon
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 12:06 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 41% 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 (41% 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