Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Saturday, June 13, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide (tomorrow) : in 2h 39m at 2:24 am (-0.3 ft)
Next high tide (tomorrow) : 8:04 am (6.5 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:21 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jul 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:525.710:116.84:120.33:580.36:258:33Full Moon1Wed
2Thu10:305.710:466.74:460.34:350.46:258:33Waning Gibbous2Thu
3Fri11:085.711:236.65:210.35:120.56:268:33Waning Gibbous3Fri
4Sat11:505.95:560.35:530.66:268:33Waning Gibbous4Sat
5Sun12:046.512:346.16:340.26:400.76:278:33Waning Gibbous5Sun
6Mon12:486.41:226.37:180.27:350.86:278:33Third Quarter6Mon
7Tue1:376.22:146.68:070.18:380.96:288:33Third Quarter7Tue
8Wed2:316.13:106.99:020.09:480.86:288:32Third Quarter8Wed
9Thu3:315.94:117.110:01-0.110:570.76:298:32Waning Crescent9Thu
10Fri4:375.95:167.411:04-0.26:298:32Waning Crescent10Fri
11Sat5:455.96:217.712:050.412:07-0.46:308:32Waning Crescent11Sat
12Sun6:506.17:228.01:090.11:10-0.66:308:31Waning Crescent12Sun
13Mon7:506.48:208.22:10-0.22:12-0.96:318:31New Moon13Mon
14Tue8:486.69:158.23:07-0.53:10-1.06:318:31New Moon14Tue
15Wed9:456.710:098.13:59-0.74:05-1.06:328:30New Moon15Wed
16Thu10:416.811:027.84:47-0.84:57-0.86:328:30Waxing Crescent16Thu
17Fri11:366.911:537.45:34-0.75:49-0.46:338:30Waxing Crescent17Fri
18Sat12:306.86:21-0.56:420.06:348:29Waxing Crescent18Sat
19Sun12:437.01:226.87:07-0.27:380.46:348:29First Quarter19Sun
20Mon1:326.62:116.77:540.08:350.86:358:28First Quarter20Mon
21Tue2:206.23:016.68:420.39:331.06:358:28First Quarter21Tue
22Wed3:105.83:516.59:310.510:291.16:368:27First Quarter22Wed
23Thu4:015.64:436.510:190.611:211.16:378:27Waxing Gibbous23Thu
24Fri4:555.55:356.611:080.76:378:26Waxing Gibbous24Fri
25Sat5:495.56:266.712:111.111:56 AM0.76:388:25Waxing Gibbous25Sat
26Sun6:395.67:126.812:591.012:450.66:388:25Waxing Gibbous26Sun
27Mon7:265.87:556.91:450.81:320.56:398:24Full Moon27Mon
28Tue8:085.98:347.02:270.62:160.46:408:24Full Moon28Tue
29Wed8:486.09:107.13:070.52:580.36:408:23Full Moon29Wed
30Thu9:256.19:457.13:430.33:370.36:418:22Full Moon30Thu
31Fri10:026.310:207.04:180.24:160.36:428:21Waning 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 5:14 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 spring phase. Tonight's moon is 3% 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 New Moon (3% 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