31.1317’ N, 81.3967’ W

St. Simons Island, GA

69°
H -°
L 57°
ENE
9mph
Low tide
12:25 am

Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Thursday, October 22, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide (tomorrow) : in 5h 53m at 12:25 am (1.0 ft)
Next high tide (tomorrow) : 6:26 am (7.4 ft)
Sunset today : 6:46 pm
Sunrise tomorrow : 7:33 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jun 1802

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:386.18:547.52:570.02:49-0.15:257:27New Moon1Tue
2Wed9:236.09:377.23:380.23:300.25:257:28Waxing Crescent2Wed
3Thu10:095.810:216.94:170.44:090.55:257:28Waxing Crescent3Thu
4Fri10:555.611:056.64:540.74:490.85:257:29Waxing Crescent4Fri
5Sat11:415.511:506.35:320.95:321.15:257:30Waxing Crescent5Sat
6Sun12:285.56:121.06:201.35:247:30First Quarter6Sun
7Mon12:346.11:145.56:561.07:141.45:247:31First Quarter7Mon
8Tue1:205.92:015.77:421.08:131.55:247:31First Quarter8Tue
9Wed2:075.82:505.98:290.99:121.45:247:31First Quarter9Wed
10Thu2:585.73:396.29:170.710:081.25:247:32Waxing Gibbous10Thu
11Fri3:515.64:296.510:050.511:030.95:247:32Waxing Gibbous11Fri
12Sat4:455.75:186.910:550.311:570.65:247:33Waxing Gibbous12Sat
13Sun5:375.86:067.211:460.15:247:33Waxing Gibbous13Sun
14Mon6:266.06:537.512:490.312:38-0.15:247:33Full Moon14Mon
15Tue7:156.17:417.81:410.01:30-0.35:247:34Full Moon15Tue
16Wed8:046.38:317.92:30-0.22:22-0.55:247:34Full Moon16Wed
17Thu8:556.39:237.83:19-0.43:13-0.65:247:34Waning Gibbous17Thu
18Fri9:506.410:197.74:08-0.54:05-0.55:247:35Waning Gibbous18Fri
19Sat10:486.511:157.54:58-0.55:01-0.35:257:35Waning Gibbous19Sat
20Sun11:476.65:51-0.56:01-0.15:257:35Waning Gibbous20Sun
21Mon12:127.212:466.76:46-0.47:060.25:257:36Third Quarter21Mon
22Tue1:096.91:446.97:42-0.48:140.35:257:36Third Quarter22Tue
23Wed2:066.62:437.08:38-0.49:200.45:257:36Third Quarter23Wed
24Thu3:046.33:417.29:33-0.410:220.45:267:36Waning Crescent24Thu
25Fri4:046.14:387.310:26-0.411:200.35:267:36Waning Crescent25Fri
26Sat5:026.05:317.411:18-0.35:267:36Waning Crescent26Sat
27Sun5:565.96:217.412:150.312:09-0.25:277:36Waning Crescent27Sun
28Mon6:465.97:077.41:070.212:58-0.15:277:37New Moon28Mon
29Tue7:325.97:507.31:540.21:45-0.15:277:37New Moon29Tue
30Wed8:165.88:327.22:360.22:280.15:287:37New Moon30Wed
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 86% 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 (86% 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