31.1317’ N, 81.3967’ W

St. Simons Island, GA

77°
H 87°
L 76°
SW
7mph
High tide
8:18 am

Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Thursday, August 27, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 2:33 pm (0.6 ft)
Next high tide : in 2h 54m at 8:18 am (6.7 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:58 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Nov 1919

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:236.41:476.97:351.68:281.56:405:38First Quarter1Sat
2Sun2:196.62:466.98:401.59:241.16:415:37First Quarter2Sun
3Mon3:177.03:467.19:451.210:190.76:425:36Waxing Gibbous3Mon
4Tue4:167.44:457.310:470.811:130.36:425:35Waxing Gibbous4Tue
5Wed5:138.05:417.511:470.46:435:34Waxing Gibbous5Wed
6Thu6:078.56:347.812:06-0.112:440.16:445:34Full Moon6Thu
7Fri6:588.97:267.912:59-0.51:40-0.26:455:33Full Moon7Fri
8Sat7:509.18:187.81:51-0.72:33-0.46:465:32Full Moon8Sat
9Sun8:429.19:127.72:43-0.83:25-0.46:475:31Waning Gibbous9Sun
10Mon9:378.910:097.53:35-0.74:18-0.26:475:31Waning Gibbous10Mon
11Tue10:358.511:097.24:28-0.45:130.16:485:30Waning Gibbous11Tue
12Wed11:348.15:24-0.16:110.46:495:29Waning Gibbous12Wed
13Thu12:117.012:347.76:260.47:120.66:505:29Third Quarter13Thu
14Fri1:126.91:337.47:320.78:140.76:515:28Third Quarter14Fri
15Sat2:136.92:317.18:380.89:120.76:525:28Third Quarter15Sat
16Sun3:126.93:286.99:400.910:040.66:535:27Waning Crescent16Sun
17Mon4:097.04:236.810:360.810:520.66:535:27Waning Crescent17Mon
18Tue5:017.25:146.811:280.711:360.56:545:26Waning Crescent18Tue
19Wed5:487.46:006.812:160.66:555:26Waning Crescent19Wed
20Thu6:307.56:436.812:190.41:000.56:565:25New Moon20Thu
21Fri7:107.67:236.712:580.41:410.56:575:25New Moon21Fri
22Sat7:477.58:016.61:360.42:200.56:585:25New Moon22Sat
23Sun8:237.48:386.52:120.42:560.56:595:24New Moon23Sun
24Mon8:577.39:146.32:460.43:300.66:595:24New Moon24Mon
25Tue9:327.19:506.23:200.54:040.77:005:24Waxing Crescent25Tue
26Wed10:076.910:296.13:550.64:390.87:015:23Waxing Crescent26Wed
27Thu10:466.811:116.04:320.85:170.97:025:23Waxing Crescent27Thu
28Fri11:296.711:576.15:130.96:000.97:035:23Waxing Crescent28Fri
29Sat12:176.66:021.06:510.87:045:23First Quarter29Sat
30Sun12:486.21:096.57:011.07:460.77:045:23First Quarter30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8677344)

Common Questions About St. Simons Island, GA Tides

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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 100% 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 Full Moon (100% 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