Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 4:35 pm (0.4 ft)
Next high tide : in 0m at 10:30 am (5.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:25 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jan 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:586.88:195.81:55-0.42:32-0.17:235:34Full Moon1Wed
2Thu8:346.88:545.82:34-0.43:07-0.27:245:34Full Moon2Thu
3Fri9:106.89:305.83:12-0.43:42-0.37:245:35Waning Gibbous3Fri
4Sat9:496.710:115.93:50-0.44:18-0.37:245:36Waning Gibbous4Sat
5Sun10:316.610:566.04:31-0.34:57-0.37:245:37Waning Gibbous5Sun
6Mon11:186.411:466.15:17-0.15:41-0.37:245:37Waning Gibbous6Mon
7Tue12:096.26:110.16:31-0.37:245:38Third Quarter7Tue
8Wed12:416.21:056.07:140.27:30-0.37:245:39Third Quarter8Wed
9Thu1:416.42:065.88:260.28:35-0.37:245:40Third Quarter9Thu
10Fri2:466.53:135.79:370.19:42-0.57:245:41Waning Crescent10Fri
11Sat3:566.74:225.810:45-0.110:48-0.77:245:41Waning Crescent11Sat
12Sun5:057.05:286.011:49-0.511:52-1.07:245:42Waning Crescent12Sun
13Mon6:087.36:286.312:48-0.87:245:43Waning Crescent13Mon
14Tue7:047.67:236.612:52-1.31:42-1.17:245:44New Moon14Tue
15Wed7:567.78:156.71:48-1.52:32-1.37:245:45New Moon15Wed
16Thu8:467.69:056.82:40-1.53:19-1.47:245:46New Moon16Thu
17Fri9:347.39:546.73:28-1.44:02-1.37:235:47Waxing Crescent17Fri
18Sat10:217.010:426.54:14-1.04:44-1.07:235:48Waxing Crescent18Sat
19Sun11:076.611:296.34:59-0.65:26-0.77:235:48Waxing Crescent19Sun
20Mon11:536.15:46-0.16:08-0.47:235:49Waxing Crescent20Mon
21Tue12:166.112:395.76:350.36:520.07:225:50First Quarter21Tue
22Wed1:036.01:265.37:280.67:400.27:225:51First Quarter22Wed
23Thu1:515.82:165.18:250.88:310.37:225:52First Quarter23Thu
24Fri2:435.73:114.99:220.99:240.47:215:53First Quarter24Fri
25Sat3:385.74:084.910:170.910:180.37:215:54Waxing Gibbous25Sat
26Sun4:345.85:035.011:090.711:100.17:205:55Waxing Gibbous26Sun
27Mon5:276.05:535.211:580.57:205:56Waxing Gibbous27Mon
28Tue6:136.36:375.512:00-0.112:440.27:195:57Waxing Gibbous28Tue
29Wed6:556.57:175.712:47-0.41:26-0.17:195:57Full Moon29Wed
30Thu7:346.77:545.91:31-0.62:05-0.47:185:58Full Moon30Thu
31Fri8:116.88:316.22:14-0.82:42-0.67:185:59Full Moon31Fri
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 1:32 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 spring phase. Tonight's moon is 94% 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 Waning Gibbous (94% 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