31.1317’ N, 81.3967’ W

St. Simons Island, GA

81°
H -°
L 76°
S
11mph
High tide
8:41 pm

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 (tomorrow) : 3:09 am (0.5 ft)
Next high tide : in 37m at 8:41 pm (7.5 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 - May 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:457.110:058.54:00-0.64:07-0.86:418:04New Moon1Sun
2Mon10:377.010:598.34:49-0.64:57-0.76:408:04Waxing Crescent2Mon
3Tue11:336.911:558.15:40-0.45:50-0.46:398:05Waxing Crescent3Tue
4Wed12:336.86:35-0.26:48-0.16:388:06Waxing Crescent4Wed
5Thu12:557.81:356.77:350.07:530.26:378:06First Quarter5Thu
6Fri1:567.52:386.78:380.19:020.36:368:07First Quarter6Fri
7Sat2:577.23:416.89:410.110:100.46:358:08First Quarter7Sat
8Sun3:597.04:447.010:400.111:120.36:358:08Waxing Gibbous8Sun
9Mon5:006.85:437.211:340.06:348:09Waxing Gibbous9Mon
10Tue5:576.86:357.512:110.212:25-0.16:338:10Waxing Gibbous10Tue
11Wed6:496.87:237.71:050.11:12-0.16:328:10Waxing Gibbous11Wed
12Thu7:376.88:067.71:550.01:57-0.16:328:11Full Moon12Thu
13Fri8:216.78:467.72:41-0.12:38-0.16:318:12Full Moon13Fri
14Sat9:026.69:257.63:230.03:170.06:308:12Full Moon14Sat
15Sun9:426.510:027.44:020.13:520.26:308:13Full Moon15Sun
16Mon10:226.310:407.24:380.24:270.46:298:14Waning Gibbous16Mon
17Tue11:036.111:186.95:130.45:000.66:288:14Waning Gibbous17Tue
18Wed11:445.911:576.65:470.65:360.86:288:15Waning Gibbous18Wed
19Thu12:265.86:240.86:151.06:278:16Waning Gibbous19Thu
20Fri12:386.41:095.87:040.97:011.26:278:16Third Quarter20Fri
21Sat1:216.31:555.97:500.97:551.36:268:17Third Quarter21Sat
22Sun2:086.22:446.08:410.98:561.36:258:18Third Quarter22Sun
23Mon2:596.13:366.39:340.710:001.26:258:18Third Quarter23Mon
24Tue3:556.14:326.610:280.511:020.96:258:19Waning Crescent24Tue
25Wed4:546.25:287.111:220.26:248:20Waning Crescent25Wed
26Thu5:536.36:237.612:030.612:16-0.16:248:20Waning Crescent26Thu
27Fri6:496.57:158.01:020.21:10-0.56:238:21Waning Crescent27Fri
28Sat7:436.88:078.41:58-0.22:05-0.86:238:21New Moon28Sat
29Sun8:356.98:598.52:53-0.52:59-1.06:238:22New Moon29Sun
30Mon9:297.09:528.53:45-0.83:52-1.16:228:23New Moon30Mon
31Tue10:257.010:478.44:37-0.94:45-1.06:228:23Waxing Crescent31Tue
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