Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 1:17 pm (0.3 ft)
Next high tide : in 1h 06m at 7:10 am (5.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jan 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:397.05:566.012:16-0.37:245:34Waning Crescent1Sat
2Sun6:327.16:486.112:18-0.71:09-0.57:245:34New Moon2Sun
3Mon7:207.27:356.21:10-0.71:57-0.67:245:35New Moon3Mon
4Tue8:057.18:206.21:57-0.72:41-0.67:245:36New Moon4Tue
5Wed8:487.09:036.12:40-0.73:20-0.57:245:37New Moon5Wed
6Thu9:286.89:456.03:20-0.53:56-0.47:245:37Waxing Crescent6Thu
7Fri10:086.510:265.93:57-0.34:31-0.27:245:38Waxing Crescent7Fri
8Sat10:486.211:075.84:330.05:04-0.17:245:39Waxing Crescent8Sat
9Sun11:275.811:495.75:090.35:390.17:245:40Waxing Crescent9Sun
10Mon12:085.55:490.66:170.37:245:41First Quarter10Mon
11Tue12:315.612:505.36:360.87:010.37:245:42First Quarter11Tue
12Wed1:155.61:365.17:300.97:510.47:245:42First Quarter12Wed
13Thu2:035.62:275.08:311.08:460.37:245:43First Quarter13Thu
14Fri2:575.73:245.09:330.99:430.27:245:44Waxing Gibbous14Fri
15Sat3:556.04:245.110:330.610:40-0.17:245:45Waxing Gibbous15Sat
16Sun4:536.35:205.411:300.311:36-0.47:245:46Waxing Gibbous16Sun
17Mon5:476.76:125.712:24-0.17:245:47Waxing Gibbous17Mon
18Tue6:377.17:016.112:31-0.81:15-0.57:235:48Full Moon18Tue
19Wed7:257.47:486.41:23-1.22:03-0.97:235:49Full Moon19Wed
20Thu8:137.68:376.72:14-1.52:49-1.27:235:49Full Moon20Thu
21Fri9:017.69:276.93:03-1.63:34-1.47:225:50Waning Gibbous21Fri
22Sat9:507.510:197.03:53-1.64:20-1.47:225:51Waning Gibbous22Sat
23Sun10:427.211:146.94:44-1.35:08-1.37:225:52Waning Gibbous23Sun
24Mon11:366.85:39-1.05:59-1.17:215:53Waning Gibbous24Mon
25Tue12:106.812:326.46:40-0.66:55-0.87:215:54Third Quarter25Tue
26Wed1:096.71:306.07:47-0.27:58-0.57:205:55Third Quarter26Wed
27Thu2:116.52:325.78:550.09:03-0.47:205:56Third Quarter27Thu
28Fri3:166.43:375.510:010.010:06-0.37:195:57Waning Crescent28Fri
29Sat4:236.44:425.511:02-0.111:07-0.47:195:58Waning Crescent29Sat
30Sun5:246.55:405.711:59-0.27:185:58Waning Crescent30Sun
31Mon6:186.66:325.812:03-0.412:50-0.37:185:59Waning Crescent31Mon
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 10:13 am — 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 spring phase. Tonight's moon is 95% 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 maximum.

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 Waxing Gibbous (95% illuminated). This places St. Simons Island, GA in a spring tide cycle, so tidal ranges are near their weekly maximum 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