Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 8:07 pm (0.3 ft)
Next high tide : in 5h 52m at 1:52 pm (6.6 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 6:22 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - May 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:346.69:477.73:480.03:460.06:408:04New Moon1Sun
2Mon10:136.410:247.54:240.24:190.26:398:05New Moon2Mon
3Tue10:536.111:017.24:590.44:520.56:388:06Waxing Crescent3Tue
4Wed11:325.911:406.95:320.75:260.76:378:06Waxing Crescent4Wed
5Thu12:145.66:071.06:031.06:378:07Waxing Crescent5Thu
6Fri12:216.712:575.56:451.26:461.36:368:08Waxing Crescent6Fri
7Sat1:066.51:435.47:311.47:381.46:358:08First Quarter7Sat
8Sun1:546.32:325.48:241.48:381.56:348:09First Quarter8Sun
9Mon2:466.23:265.69:211.39:421.46:338:10First Quarter9Mon
10Tue3:426.24:235.910:171.110:451.26:338:10First Quarter10Tue
11Wed4:406.35:196.411:090.811:440.86:328:11Waxing Gibbous11Wed
12Thu5:376.56:116.912:000.46:318:12Waxing Gibbous12Thu
13Fri6:306.77:007.512:410.512:500.06:318:12Waxing Gibbous13Fri
14Sat7:216.97:488.01:360.11:40-0.36:308:13Full Moon14Sat
15Sun8:107.08:358.32:30-0.32:29-0.66:298:14Full Moon15Sun
16Mon8:597.09:258.43:21-0.53:19-0.76:298:14Full Moon16Mon
17Tue9:516.910:178.44:12-0.64:09-0.76:288:15Full Moon17Tue
18Wed10:466.811:148.15:04-0.65:01-0.56:278:16Waning Gibbous18Wed
19Thu11:456.65:57-0.45:56-0.26:278:16Waning Gibbous19Thu
20Fri12:147.812:466.56:55-0.16:570.16:268:17Waning Gibbous20Fri
21Sat1:167.51:496.47:570.18:050.46:268:18Third Quarter21Sat
22Sun2:187.22:526.49:000.19:160.66:258:18Third Quarter22Sun
23Mon3:206.93:546.510:000.110:230.66:258:19Third Quarter23Mon
24Tue4:206.74:546.810:540.011:240.56:248:20Waning Crescent24Tue
25Wed5:186.55:497.011:45-0.16:248:20Waning Crescent25Wed
26Thu6:126.56:387.312:210.412:31-0.16:248:21Waning Crescent26Thu
27Fri7:006.47:237.41:120.31:16-0.16:238:21Waning Crescent27Fri
28Sat7:456.38:037.52:000.31:57-0.16:238:22New Moon28Sat
29Sun8:266.28:427.52:440.22:370.06:238:23New Moon29Sun
30Mon9:076.19:197.43:240.23:140.16:228:23New Moon30Mon
31Tue9:466.09:567.24:000.33:500.26:228:24New Moon31Tue
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 4:59 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 transitional phase. Tonight's moon is 37% 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 (37% 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