Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 9:48 pm (0.8 ft)
Next high tide : in 2h 17m at 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 - Jun 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:216.98:488.22:44-0.52:43-0.86:228:24Full Moon1Sat
2Sun9:127.09:398.33:34-0.83:35-0.96:218:25Full Moon2Sun
3Mon10:057.110:328.24:25-0.94:26-0.96:218:25Waning Gibbous3Mon
4Tue11:017.011:298.05:15-0.95:19-0.86:218:26Waning Gibbous4Tue
5Wed12:007.06:08-0.86:15-0.56:218:26Waning Gibbous5Wed
6Thu12:277.81:006.97:03-0.77:17-0.26:218:27Waning Gibbous6Thu
7Fri1:267.42:006.98:02-0.58:230.16:218:27Third Quarter7Fri
8Sat2:257.13:007.09:01-0.59:310.26:218:28Third Quarter8Sat
9Sun3:246.83:597.09:59-0.410:350.36:218:28Third Quarter9Sun
10Mon4:236.64:577.110:54-0.411:350.26:218:29Waning Crescent10Mon
11Tue5:226.45:537.311:46-0.46:218:29Waning Crescent11Tue
12Wed6:176.46:437.412:300.212:36-0.46:218:29Waning Crescent12Wed
13Thu7:076.37:307.51:230.11:24-0.36:218:30Waning Crescent13Thu
14Fri7:546.38:137.52:110.02:09-0.36:218:30New Moon14Fri
15Sat8:386.38:537.42:550.02:51-0.26:218:31New Moon15Sat
16Sun9:206.29:327.33:350.03:31-0.16:218:31New Moon16Sun
17Mon10:006.110:117.14:110.14:080.16:218:31New Moon17Mon
18Tue10:415.910:496.94:450.24:440.36:218:31Waxing Crescent18Tue
19Wed11:215.811:286.75:180.35:200.56:218:32Waxing Crescent19Wed
20Thu12:015.75:510.45:570.76:228:32Waxing Crescent20Thu
21Fri12:076.512:415.76:260.56:390.96:228:32Waxing Crescent21Fri
22Sat12:486.31:225.87:060.57:271.06:228:32First Quarter22Sat
23Sun1:316.22:075.97:510.58:231.16:228:33First Quarter23Sun
24Mon2:186.12:556.18:410.49:241.06:238:33First Quarter24Mon
25Tue3:106.03:496.49:350.310:260.86:238:33First Quarter25Tue
26Wed4:076.04:466.810:310.111:270.56:238:33Waxing Gibbous26Wed
27Thu5:076.15:457.211:29-0.26:238:33Waxing Gibbous27Thu
28Fri6:076.36:427.612:270.212:27-0.56:248:33Waxing Gibbous28Fri
29Sat7:056.67:378.01:26-0.21:26-0.86:248:33Full Moon29Sat
30Sun8:006.98:318.22:23-0.62:24-1.06:258:33Full Moon30Sun
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 6:29 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