Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 5h 29m at 11:05 pm (0.7 ft)
Next high tide (tomorrow) : 4:41 am (5.8 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:22 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jun 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:247.33:096.79:07-0.29:350.26:228:25First Quarter1Sun
2Mon3:257.04:116.910:07-0.210:400.26:218:25First Quarter2Mon
3Tue4:266.85:117.111:03-0.311:410.16:218:26Waxing Gibbous3Tue
4Wed5:256.76:077.311:56-0.36:218:26Waxing Gibbous4Wed
5Thu6:216.66:587.512:370.012:46-0.46:218:27Waxing Gibbous5Thu
6Fri7:126.67:447.61:30-0.11:33-0.46:218:27Waxing Gibbous6Fri
7Sat7:586.58:277.62:20-0.22:18-0.36:218:28Full Moon7Sat
8Sun8:426.59:087.53:05-0.22:59-0.26:218:28Full Moon8Sun
9Mon9:256.39:477.43:46-0.23:380.06:218:28Full Moon9Mon
10Tue10:076.210:267.14:250.04:140.26:218:29Full Moon10Tue
11Wed10:486.011:066.95:010.14:490.46:218:29Waning Gibbous11Wed
12Thu11:305.811:456.65:360.35:250.66:218:30Waning Gibbous12Thu
13Fri12:135.76:120.56:020.86:218:30Waning Gibbous13Fri
14Sat12:266.412:565.76:500.66:451.06:218:30Waning Gibbous14Sat
15Sun1:086.21:395.77:330.77:341.16:218:31Third Quarter15Sun
16Mon1:516.12:255.88:190.78:311.26:218:31Third Quarter16Mon
17Tue2:386.03:136.09:100.69:321.16:218:31Third Quarter17Tue
18Wed3:305.94:066.310:010.410:330.96:218:32Third Quarter18Wed
19Thu4:265.95:006.710:540.111:330.76:228:32Waning Crescent19Thu
20Fri5:246.05:557.111:47-0.16:228:32Waning Crescent20Fri
21Sat6:216.26:497.612:320.312:42-0.46:228:32Waning Crescent21Sat
22Sun7:156.47:418.01:30-0.11:37-0.76:228:32New Moon22Sun
23Mon8:086.68:328.32:26-0.42:31-1.06:228:33New Moon23Mon
24Tue9:016.89:258.43:19-0.73:25-1.16:238:33New Moon24Tue
25Wed9:566.910:198.34:11-0.94:18-1.16:238:33New Moon25Wed
26Thu10:536.911:168.15:02-1.05:12-1.06:238:33Waxing Crescent26Thu
27Fri11:536.95:54-0.96:08-0.86:248:33Waxing Crescent27Fri
28Sat12:137.812:536.96:48-0.87:08-0.46:248:33Waxing Crescent28Sat
29Sun1:117.51:526.97:45-0.68:12-0.16:248:33First Quarter29Sun
30Mon2:087.12:506.98:43-0.59:170.16:258:33First Quarter30Mon
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 1:53 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 transitional phase. Tonight's moon is 67% 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 shifting between spring and neap.

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 First Quarter (67% illuminated). This places St. Simons Island, GA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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