31.1317’ N, 81.3967’ W

St. Simons Island, GA

76°
H 88°
L 76°
SW
5mph
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 1h 55m 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 - Oct 1919

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:226.31:476.97:171.78:162.17:187:12First Quarter1Wed
2Thu2:106.32:376.88:121.89:142.07:197:11First Quarter2Thu
3Fri3:036.33:336.99:141.810:121.87:197:09First Quarter3Fri
4Sat3:596.54:307.110:161.611:061.57:207:08Waxing Gibbous4Sat
5Sun4:566.85:277.311:161.311:581.17:217:07Waxing Gibbous5Sun
6Mon5:517.36:217.612:141.07:217:06Waxing Gibbous6Mon
7Tue6:437.87:107.912:480.71:100.67:227:04Waxing Gibbous7Tue
8Wed7:328.47:588.11:370.22:040.27:237:03Full Moon8Wed
9Thu8:208.88:468.22:26-0.12:560.07:237:02Full Moon9Thu
10Fri9:089.09:358.23:13-0.43:47-0.17:247:01Full Moon10Fri
11Sat9:589.110:278.04:01-0.44:380.07:257:00Waning Gibbous11Sat
12Sun10:528.911:227.74:51-0.35:310.27:256:58Waning Gibbous12Sun
13Mon11:498.75:42-0.16:270.57:266:57Waning Gibbous13Mon
14Tue12:227.412:508.46:390.37:290.97:276:56Third Quarter14Tue
15Wed1:257.21:528.17:430.68:351.17:276:55Third Quarter15Wed
16Thu2:287.12:557.88:510.99:411.17:286:54Third Quarter16Thu
17Fri3:337.03:587.69:590.910:411.07:296:53Third Quarter17Fri
18Sat4:367.14:587.511:020.911:360.97:296:51Waning Crescent18Sat
19Sun5:367.45:547.511:590.87:306:50Waning Crescent19Sun
20Mon6:297.66:447.512:250.712:520.77:316:49Waning Crescent20Mon
21Tue7:157.87:297.61:110.61:410.77:326:48Waning Crescent21Tue
22Wed7:578.08:107.51:530.62:250.67:326:47New Moon22Wed
23Thu8:368.08:507.42:320.63:070.77:336:46New Moon23Thu
24Fri9:138.09:277.23:070.63:450.77:346:45New Moon24Fri
25Sat9:497.810:057.03:410.74:200.97:356:44New Moon25Sat
26Sun9:247.69:426.83:130.93:541.16:355:43Waxing Crescent26Sun
27Mon10:007.410:206.63:451.04:291.36:365:42Waxing Crescent27Mon
28Tue10:387.211:016.44:191.25:051.56:375:41Waxing Crescent28Tue
29Wed11:197.011:446.34:571.45:461.76:385:40Waxing Crescent29Wed
30Thu12:046.95:411.56:351.76:385:39First Quarter30Thu
31Fri12:316.312:536.86:331.67:301.76:395:38First Quarter31Fri
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