Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide : in 4h 41m at 4:35 pm (0.4 ft)
Next high tide : 10:46 pm (6.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:25 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Feb 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:496.99:096.32:55-0.93:18-0.87:176:00Full Moon1Sat
2Sun9:296.89:506.53:36-0.93:55-0.87:166:01Waning Gibbous2Sun
3Mon10:126.610:366.64:18-0.74:35-0.87:166:02Waning Gibbous3Mon
4Tue10:596.411:276.65:05-0.55:19-0.77:156:03Waning Gibbous4Tue
5Wed11:516.25:58-0.36:09-0.67:146:04Third Quarter5Wed
6Thu12:226.612:485.97:010.07:09-0.47:146:05Third Quarter6Thu
7Fri1:236.51:505.78:120.28:18-0.37:136:05Third Quarter7Fri
8Sat2:316.42:595.69:250.29:30-0.37:126:06Third Quarter8Sat
9Sun3:446.54:105.710:330.010:39-0.57:116:07Waning Crescent9Sun
10Mon4:556.75:186.011:35-0.311:43-0.87:106:08Waning Crescent10Mon
11Tue5:587.06:176.312:33-0.77:106:09Waning Crescent11Tue
12Wed6:527.37:106.712:42-1.01:24-1.07:096:10New Moon12Wed
13Thu7:417.47:586.91:36-1.22:11-1.27:086:11New Moon13Thu
14Fri8:277.38:447.02:25-1.22:54-1.27:076:11New Moon14Fri
15Sat9:107.19:277.03:10-1.13:34-1.17:066:12New Moon15Sat
16Sun9:526.810:106.83:52-0.94:11-0.97:056:13Waxing Crescent16Sun
17Mon10:346.410:516.64:31-0.54:46-0.67:046:14Waxing Crescent17Mon
18Tue11:166.011:336.45:100.05:22-0.27:036:15Waxing Crescent18Tue
19Wed11:585.75:500.46:000.27:026:15Waxing Crescent19Wed
20Thu12:166.112:435.36:350.86:430.57:016:16First Quarter20Thu
21Fri1:025.91:315.17:261.17:350.77:006:17First Quarter21Fri
22Sat1:525.72:245.08:261.28:340.86:596:18First Quarter22Sat
23Sun2:485.73:225.09:261.29:340.76:586:19First Quarter23Sun
24Mon3:485.74:225.110:231.010:320.56:576:19Waxing Gibbous24Mon
25Tue4:465.95:165.411:160.811:270.26:566:20Waxing Gibbous25Tue
26Wed5:386.36:045.812:050.46:556:21Waxing Gibbous26Wed
27Thu6:236.66:466.212:18-0.112:500.06:546:22Waxing Gibbous27Thu
28Fri7:056.97:266.61:06-0.41:32-0.36:536:22Full Moon28Fri
29Sat7:467.18:067.01:52-0.72:12-0.76:526:23Full Moon29Sat
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 7:40 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 94% 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 Waning Gibbous (94% 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