31.1317’ N, 81.3967’ W

St. Simons Island, GA

59°
H -°
L 54°
N
6mph
High tide
3:50 am

Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Monday, October 19, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide (tomorrow) : 10:02 am (1.9 ft)
Next high tide (tomorrow) : in 4h 58m at 3:50 am (6.2 ft)
Sunset today : 6:49 pm
Sunrise tomorrow : 7:31 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Feb 1808

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:185.811:365.95:040.15:25-0.17:226:04Waxing Crescent1Mon
2Tue11:575.55:420.46:020.17:216:05First Quarter2Tue
3Wed12:175.812:395.36:250.76:450.37:216:06First Quarter3Wed
4Thu1:015.71:255.17:170.97:370.47:206:07First Quarter4Thu
5Fri1:495.62:165.08:170.98:340.47:196:07First Quarter5Fri
6Sat2:445.73:145.09:200.99:330.37:196:08First Quarter6Sat
7Sun3:435.84:155.110:210.710:320.07:186:09Waxing Gibbous7Sun
8Mon4:436.25:125.511:180.311:30-0.37:176:10Waxing Gibbous8Mon
9Tue5:386.66:045.912:12-0.17:166:11Waxing Gibbous9Tue
10Wed6:287.06:526.312:25-0.71:02-0.57:166:12Full Moon10Wed
11Thu7:167.37:396.81:17-1.11:50-1.07:156:13Full Moon11Thu
12Fri8:027.58:267.12:07-1.42:35-1.37:146:13Full Moon12Fri
13Sat8:497.69:147.32:56-1.63:20-1.57:136:14Full Moon13Sat
14Sun9:387.510:057.43:45-1.64:05-1.57:126:15Waning Gibbous14Sun
15Mon10:297.210:597.34:35-1.34:52-1.37:116:16Waning Gibbous15Mon
16Tue11:236.811:557.15:29-1.05:43-1.07:106:17Waning Gibbous16Tue
17Wed12:206.56:28-0.66:40-0.77:096:18Third Quarter17Wed
18Thu12:556.91:196.17:34-0.27:45-0.47:086:18Third Quarter18Thu
19Fri1:576.62:225.98:430.08:53-0.27:076:19Third Quarter19Fri
20Sat3:046.53:295.79:500.19:59-0.27:066:20Waning Crescent20Sat
21Sun4:126.54:345.810:510.011:01-0.27:056:21Waning Crescent21Sun
22Mon5:156.65:336.011:47-0.211:58-0.37:046:22Waning Crescent22Mon
23Tue6:096.76:256.312:37-0.47:036:22Waning Crescent23Tue
24Wed6:556.87:106.512:50-0.51:23-0.57:026:23New Moon24Wed
25Thu7:376.97:516.71:36-0.52:03-0.67:016:24New Moon25Thu
26Fri8:176.88:306.72:17-0.52:40-0.67:006:25New Moon26Fri
27Sat8:546.79:076.72:54-0.53:13-0.56:596:25New Moon27Sat
28Sun9:306.59:426.63:29-0.33:44-0.46:586:26Waxing Crescent28Sun
29Mon10:056.210:176.54:01-0.14:14-0.26:576:27Waxing Crescent29Mon
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 neap phase. Tonight's moon is 59% 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 minimum.

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 (59% illuminated). This places St. Simons Island, GA in a neap tide cycle, so tidal ranges are near their weekly minimum 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