31.1317’ N, 81.3967’ W

St. Simons Island, GA

74°
H -°
L 63°
NNE
11mph
High tide
7:29 pm

Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Thursday, September 24, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide (tomorrow) : 1:52 am (0.8 ft)
Next high tide : in 3h 43m at 7:29 pm (7.5 ft)
Sunset today : 7:19 pm
Sunrise tomorrow : 7:15 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Apr 1866

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:566.89:157.23:08-0.13:090.06:186:48Full Moon1Sun
2Mon9:336.69:497.03:420.13:390.26:166:49Waning Gibbous2Mon
3Tue10:096.410:236.84:140.34:100.46:156:50Waning Gibbous3Tue
4Wed10:466.110:596.64:480.64:430.66:146:50Waning Gibbous4Wed
5Thu11:266.011:396.55:250.85:200.86:136:51Waning Gibbous5Thu
6Fri12:085.86:071.06:051.06:126:51Third Quarter6Fri
7Sat12:246.412:565.86:581.17:001.16:106:52Third Quarter7Sat
8Sun1:156.31:505.97:581.18:041.16:096:53Third Quarter8Sun
9Mon2:146.42:496.19:001.09:120.96:086:53Third Quarter9Mon
10Tue3:176.53:516.410:000.710:180.66:076:54Waning Crescent10Tue
11Wed4:226.84:527.010:570.311:200.26:066:55Waning Crescent11Wed
12Thu5:227.15:477.611:52-0.26:046:55Waning Crescent12Thu
13Fri6:177.46:408.112:19-0.312:45-0.66:036:56New Moon13Fri
14Sat7:087.77:308.51:16-0.71:36-1.06:026:57New Moon14Sat
15Sun7:597.88:208.82:09-1.02:25-1.26:016:57New Moon15Sun
16Mon8:517.79:128.83:01-1.13:15-1.26:006:58New Moon16Mon
17Tue9:457.510:068.53:52-1.04:04-1.05:596:59Waxing Crescent17Tue
18Wed10:417.311:038.24:45-0.74:57-0.75:576:59Waxing Crescent18Wed
19Thu11:407.05:40-0.45:53-0.25:567:00Waxing Crescent19Thu
20Fri12:017.812:406.76:400.06:560.25:557:01First Quarter20Fri
21Sat1:007.41:416.67:440.38:030.55:547:01First Quarter21Sat
22Sun2:017.12:436.58:480.49:080.65:537:02First Quarter22Sun
23Mon3:016.83:446.69:460.510:090.65:527:02First Quarter23Mon
24Tue4:016.74:416.710:380.411:040.55:517:03Waxing Gibbous24Tue
25Wed4:566.75:327.011:260.311:560.45:507:04Waxing Gibbous25Wed
26Thu5:466.76:177.212:100.35:497:04Waxing Gibbous26Thu
27Fri6:306.86:587.412:430.312:510.25:487:05Waxing Gibbous27Fri
28Sat7:116.87:367.51:260.21:290.25:477:06Full Moon28Sat
29Sun7:506.78:117.42:060.12:040.25:467:07Full Moon29Sun
30Mon8:276.68:457.42:420.22:370.25:457:07Full Moon30Mon
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 95% 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 (95% 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