Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Friday, June 26, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide (tomorrow) : 1:33 am (0.6 ft)
Next high tide : in 5h 48m at 6:58 pm (6.9 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Dec 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:257.05:436.511:570.511:590.07:065:22Waning Crescent1Sat
2Sun6:117.46:316.712:490.17:075:22New Moon2Sun
3Mon6:577.87:186.812:48-0.31:40-0.27:085:22New Moon3Mon
4Tue7:448.08:066.81:37-0.62:30-0.47:095:22New Moon4Tue
5Wed8:338.18:566.72:27-0.73:19-0.47:105:23New Moon5Wed
6Thu9:258.09:506.63:16-0.74:10-0.47:105:23Waxing Crescent6Thu
7Fri10:227.810:496.54:08-0.65:03-0.37:115:23Waxing Crescent7Fri
8Sat11:227.511:506.45:04-0.46:00-0.17:125:23Waxing Crescent8Sat
9Sun12:237.26:06-0.17:010.07:125:23First Quarter9Sun
10Mon12:536.41:246.97:140.28:030.07:135:23First Quarter10Mon
11Tue1:566.52:266.78:260.39:02-0.17:145:23First Quarter11Tue
12Wed2:596.63:276.59:330.39:58-0.37:155:24First Quarter12Wed
13Thu3:596.84:266.310:350.210:49-0.47:155:24Waxing Gibbous13Thu
14Fri4:567.05:216.311:310.111:39-0.47:165:24Waxing Gibbous14Fri
15Sat5:477.26:116.212:240.07:165:25Waxing Gibbous15Sat
16Sun6:337.36:566.212:26-0.51:13-0.17:175:25Full Moon16Sun
17Mon7:167.47:396.11:11-0.41:57-0.17:185:25Full Moon17Mon
18Tue7:567.38:206.01:52-0.42:37-0.17:185:26Full Moon18Tue
19Wed8:357.29:005.92:31-0.33:140.17:195:26Full Moon19Wed
20Thu9:146.99:395.73:08-0.23:480.27:195:27Waning Gibbous20Thu
21Fri9:536.710:195.53:430.04:210.47:205:27Waning Gibbous21Fri
22Sat10:326.510:595.44:190.24:540.57:205:28Waning Gibbous22Sat
23Sun11:126.211:395.34:560.55:300.67:215:28Waning Gibbous23Sun
24Mon11:546.05:370.76:100.77:215:29Third Quarter24Mon
25Tue12:225.312:375.96:250.86:550.67:215:30Third Quarter25Tue
26Wed1:075.41:245.77:210.97:450.57:225:30Third Quarter26Wed
27Thu1:565.52:155.68:230.98:390.47:225:31Third Quarter27Thu
28Fri2:505.83:115.69:260.89:340.17:235:31Waning Crescent28Fri
29Sat3:486.14:115.610:280.510:30-0.17:235:32Waning Crescent29Sat
30Sun4:466.65:095.811:280.211:26-0.57:235:33Waning Crescent30Sun
31Mon5:437.06:056.012:26-0.27:235:33Waning 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 10:15 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 90% 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 (90% 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