Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 2h 51m at 3:58 pm (0.3 ft)
Next high tide : 10:11 pm (6.8 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:25 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jul 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:405.57:047.112:530.812:490.16:258:33Waning Crescent1Sun
2Mon7:295.77:517.41:450.51:41-0.16:268:33New Moon2Mon
3Tue8:156.08:377.62:340.22:32-0.46:268:33New Moon3Tue
4Wed9:026.29:247.83:21-0.13:22-0.56:268:33New Moon4Wed
5Thu9:506.410:127.84:07-0.44:12-0.66:278:33New Moon5Thu
6Fri10:426.511:037.74:52-0.55:01-0.66:278:33Waxing Crescent6Fri
7Sat11:366.711:567.55:38-0.65:54-0.46:288:33Waxing Crescent7Sat
8Sun12:326.96:26-0.66:50-0.26:288:32Waxing Crescent8Sun
9Mon12:497.21:287.07:17-0.67:530.16:298:32First Quarter9Mon
10Tue1:446.92:267.18:12-0.58:590.36:298:32First Quarter10Tue
11Wed2:416.53:257.19:10-0.410:060.46:308:32First Quarter11Wed
12Thu3:406.24:267.210:09-0.311:090.46:308:31Waxing Gibbous12Thu
13Fri4:426.05:287.211:08-0.26:318:31Waxing Gibbous13Fri
14Sat5:455.96:277.312:100.312:06-0.26:318:31Waxing Gibbous14Sat
15Sun6:436.07:217.41:080.21:03-0.16:328:30Waxing Gibbous15Sun
16Mon7:376.18:117.42:010.11:56-0.16:338:30Full Moon16Mon
17Tue8:266.18:567.32:500.02:46-0.16:338:30Full Moon17Tue
18Wed9:126.29:397.23:340.03:300.06:348:29Full Moon18Wed
19Thu9:566.210:207.04:140.04:110.26:348:29Full Moon19Thu
20Fri10:396.211:006.84:500.14:490.46:358:28Waning Gibbous20Fri
21Sat11:216.111:396.55:240.25:250.76:368:28Waning Gibbous21Sat
22Sun12:026.15:560.46:030.96:368:27Waning Gibbous22Sun
23Mon12:186.212:436.16:300.56:421.26:378:27Waning Gibbous23Mon
24Tue12:575.91:246.17:060.67:281.46:378:26Third Quarter24Tue
25Wed1:375.72:066.27:470.78:201.56:388:25Third Quarter25Wed
26Thu2:215.52:526.38:350.89:191.66:398:25Third Quarter26Thu
27Fri3:105.43:436.49:280.810:201.56:398:24Third Quarter27Fri
28Sat4:055.44:406.610:240.711:201.36:408:23Waning Crescent28Sat
29Sun5:055.45:386.911:210.56:418:23Waning Crescent29Sun
30Mon6:045.76:347.312:191.012:190.26:418:22Waning Crescent30Mon
31Tue6:596.07:277.61:150.61:17-0.16:428:21Waning Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8677344)

Common Questions About St. Simons Island, GA Tides

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

Slack tide in St. Simons Island, GA is approximately 7:04 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 spring phase. Tonight's moon is 97% 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 (97% 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