Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 1h 59m at 8:38 pm (0.9 ft)
Next high tide (tomorrow) : 2:31 am (6.1 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:28 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Oct 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:477.69:007.62:450.83:090.87:197:10New Moon1Wed
2Thu9:217.69:357.43:190.83:460.97:207:09New Moon2Thu
3Fri9:537.610:097.33:510.84:211.07:207:08New Moon3Fri
4Sat10:257.510:447.14:230.94:561.17:217:07Waxing Crescent4Sat
5Sun11:017.511:226.94:570.95:341.37:217:05Waxing Crescent5Sun
6Mon11:417.55:341.06:151.47:227:04Waxing Crescent6Mon
7Tue12:066.812:297.46:161.27:051.67:237:03Waxing Crescent7Tue
8Wed12:576.71:227.47:071.38:041.67:237:02First Quarter8Wed
9Thu1:526.82:227.58:091.39:111.57:247:01First Quarter9Thu
10Fri2:546.93:277.69:181.210:171.27:256:59First Quarter10Fri
11Sat3:597.14:357.810:291.011:180.87:256:58Waxing Gibbous11Sat
12Sun5:057.55:408.011:360.67:266:57Waxing Gibbous12Sun
13Mon6:088.06:418.312:170.312:390.27:276:56Waxing Gibbous13Mon
14Tue7:068.67:368.61:12-0.11:39-0.17:276:55Full Moon14Tue
15Wed8:009.08:288.62:05-0.52:35-0.47:286:54Full Moon15Wed
16Thu8:519.29:198.52:56-0.73:29-0.57:296:52Full Moon16Thu
17Fri9:429.210:118.33:45-0.74:20-0.47:296:51Full Moon17Fri
18Sat10:349.011:037.94:33-0.55:10-0.17:306:50Waning Gibbous18Sat
19Sun11:268.711:577.55:21-0.26:010.47:316:49Waning Gibbous19Sun
20Mon12:208.26:100.36:540.87:326:48Waning Gibbous20Mon
21Tue12:527.21:137.87:030.87:501.27:326:47Third Quarter21Tue
22Wed1:476.92:077.58:001.28:491.57:336:46Third Quarter22Wed
23Thu2:436.73:027.29:001.49:461.67:346:45Third Quarter23Thu
24Fri3:396.63:577.19:591.510:381.57:356:44Third Quarter24Fri
25Sat4:346.64:517.010:541.511:251.47:356:43Waning Crescent25Sat
26Sun4:276.84:427.010:451.411:091.26:365:42Waning Crescent26Sun
27Mon5:167.05:297.111:331.211:501.16:375:41Waning Crescent27Mon
28Tue6:007.36:137.212:181.06:385:40Waning Crescent28Tue
29Wed6:407.56:537.312:290.91:010.96:385:39New Moon29Wed
30Thu7:167.67:307.31:080.71:420.86:395:38New Moon30Thu
31Fri7:507.78:057.21:440.62:210.76:405:37New Moon31Fri
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 11:34 pm — 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 neap phase. Tonight's moon is 52% 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 Third Quarter (52% 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