Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 39m at 8:38 pm (0.9 ft)
Next high tide (tomorrow) : 2:31 am (6.1 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:28 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Mar 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:317.67:547.11:33-1.12:04-0.96:506:24Full Moon1Wed
2Thu8:187.88:417.42:23-1.42:50-1.26:496:25Full Moon2Thu
3Fri9:067.89:317.63:12-1.53:34-1.36:486:25Waning Gibbous3Fri
4Sat9:567.610:227.64:02-1.44:20-1.26:476:26Waning Gibbous4Sat
5Sun10:487.311:177.54:53-1.15:08-1.06:466:27Waning Gibbous5Sun
6Mon11:436.95:49-0.76:01-0.66:456:28Waning Gibbous6Mon
7Tue12:147.312:416.56:51-0.27:00-0.36:436:28Third Quarter7Tue
8Wed1:147.01:416.27:580.18:070.06:426:29Third Quarter8Wed
9Thu2:186.82:465.99:060.39:150.26:416:30Third Quarter9Thu
10Fri3:266.63:525.910:110.310:200.26:406:30Waning Crescent10Fri
11Sat4:336.64:556.111:100.211:200.16:396:31Waning Crescent11Sat
12Sun6:336.86:516.31:030.07:377:32Waning Crescent12Sun
13Mon7:246.97:406.61:150.01:52-0.17:367:32Waning Crescent13Mon
14Tue8:097.08:236.82:05-0.22:35-0.27:357:33New Moon14Tue
15Wed8:497.09:036.92:49-0.23:13-0.37:347:34New Moon15Wed
16Thu9:276.99:407.03:28-0.23:48-0.37:327:34New Moon16Thu
17Fri10:046.810:156.94:04-0.14:20-0.27:317:35New Moon17Fri
18Sat10:396.610:506.84:380.04:500.07:307:36Waxing Crescent18Sat
19Sun11:156.311:246.75:090.25:200.27:297:36Waxing Crescent19Sun
20Mon11:506.05:420.55:520.47:277:37Waxing Crescent20Mon
21Tue12:006.612:275.86:160.76:280.77:267:38Waxing Crescent21Tue
22Wed12:396.41:075.66:571.07:100.97:257:38First Quarter22Wed
23Thu1:236.31:535.57:461.28:031.07:247:39First Quarter23Thu
24Fri2:136.32:465.48:461.39:051.07:227:40First Quarter24Fri
25Sat3:116.33:475.59:531.210:120.97:217:40First Quarter25Sat
26Sun4:156.54:525.810:580.911:170.57:207:41Waxing Gibbous26Sun
27Mon5:206.85:556.311:580.57:197:42Waxing Gibbous27Mon
28Tue6:217.26:516.912:190.112:540.17:177:42Waxing Gibbous28Tue
29Wed7:167.67:437.51:18-0.41:47-0.47:167:43Waxing Gibbous29Wed
30Thu8:077.98:338.02:14-0.82:37-0.87:157:44Full Moon30Thu
31Fri8:578.09:228.33:07-1.23:25-1.17:147:44Full 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 11:34 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 52% 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 (52% 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