Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 13m at 7:18 am (0.2 ft)
Next high tide : 1:22 pm (6.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:27 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Oct 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:098.211:367.45:120.35:420.77:197:10Waning Gibbous1Wed
2Thu12:018.25:580.56:351.07:207:09Waning Gibbous2Thu
3Fri12:317.212:598.16:520.77:361.27:207:07Third Quarter3Fri
4Sat1:317.02:008.07:540.88:451.27:217:06Third Quarter4Sat
5Sun2:357.03:057.99:040.99:551.27:227:05Third Quarter5Sun
6Mon3:427.14:127.910:140.810:590.97:227:04Third Quarter6Mon
7Tue4:517.35:188.011:190.611:580.67:237:02Waning Crescent7Tue
8Wed5:557.66:198.212:210.37:247:01Waning Crescent8Wed
9Thu6:528.07:138.312:530.31:180.17:247:00Waning Crescent9Thu
10Fri7:448.38:038.41:450.12:120.07:256:59New Moon10Fri
11Sat8:328.58:498.32:33-0.13:02-0.17:266:58New Moon11Sat
12Sun9:178.59:348.13:17-0.13:490.07:266:57New Moon12Sun
13Mon10:018.410:187.83:580.14:320.37:276:55New Moon13Mon
14Tue10:448.211:027.44:370.45:140.67:286:54Waxing Crescent14Tue
15Wed11:287.911:477.15:140.75:551.07:286:53Waxing Crescent15Wed
16Thu12:127.55:511.16:371.47:296:52Waxing Crescent16Thu
17Fri12:336.712:587.26:311.47:231.77:306:51First Quarter17Fri
18Sat1:216.51:467.07:161.78:141.97:306:50First Quarter18Sat
19Sun2:106.42:366.88:081.99:081.97:316:49First Quarter19Sun
20Mon3:016.33:286.89:071.910:011.87:326:48First Quarter20Mon
21Tue3:546.44:226.810:061.810:511.67:336:47First Quarter21Tue
22Wed4:486.65:156.911:021.611:391.37:336:46Waxing Gibbous22Wed
23Thu5:396.96:057.111:551.47:346:45Waxing Gibbous23Thu
24Fri6:267.36:517.312:251.012:461.17:356:44Waxing Gibbous24Fri
25Sat7:107.77:337.51:110.71:350.87:366:43Full Moon25Sat
26Sun7:528.18:157.61:550.32:230.57:366:42Full Moon26Sun
27Mon8:338.48:577.72:390.13:100.37:376:41Full Moon27Mon
28Tue9:168.69:417.63:23-0.13:560.27:386:40Full Moon28Tue
29Wed10:038.610:307.54:08-0.24:430.27:396:39Waning Gibbous29Wed
30Thu10:538.511:237.34:54-0.15:320.37:396:38Waning Gibbous30Thu
31Fri11:488.35:440.16:260.57:406:37Waning Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8677344)

Common Questions About St. Simons Island, GA Tides

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What time does the tide turn (slack tide) in St. Simons Island, GA today?

Slack tide in St. Simons Island, GA is approximately 10:20 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in St. Simons Island, GA?

St. Simons Island, GA is currently in a transitional phase. Tonight's moon is 62% 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 shifting between spring and neap.

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 Third Quarter (62% illuminated). This places St. Simons Island, GA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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