Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide (tomorrow) : 7:18 am (0.2 ft)
Next high tide (tomorrow) : in 3h 07m at 12:48 am (6.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Feb 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:015.91:265.47:270.57:550.07:176:01First Quarter1Thu
2Fri1:596.12:275.38:370.58:58-0.17:166:01First Quarter2Fri
3Sat3:036.33:355.49:490.410:04-0.37:166:02Waxing Gibbous3Sat
4Sun4:116.64:445.610:580.011:09-0.77:156:03Waxing Gibbous4Sun
5Mon5:177.05:486.012:02-0.47:146:04Waxing Gibbous5Mon
6Tue6:187.56:476.412:12-1.11:01-0.87:136:05Waxing Gibbous6Tue
7Wed7:147.87:416.81:11-1.51:55-1.27:136:06Full Moon7Wed
8Thu8:088.08:347.12:07-1.82:45-1.57:126:07Full Moon8Thu
9Fri9:008.09:277.23:00-1.93:33-1.67:116:08Full Moon9Fri
10Sat9:527.810:217.13:51-1.84:20-1.57:106:08Waning Gibbous10Sat
11Sun10:447.411:147.04:42-1.55:07-1.27:096:09Waning Gibbous11Sun
12Mon11:356.95:35-1.05:56-0.97:096:10Waning Gibbous12Mon
13Tue12:076.812:276.46:31-0.56:47-0.57:086:11Third Quarter13Tue
14Wed1:006.51:196.07:310.07:42-0.17:076:12Third Quarter14Wed
15Thu1:556.32:135.68:340.38:390.27:066:13Third Quarter15Thu
16Fri2:516.13:115.49:340.59:350.37:056:13Third Quarter16Fri
17Sat3:506.04:095.310:300.510:300.47:046:14Waning Crescent17Sat
18Sun4:486.05:055.411:230.511:220.37:036:15Waning Crescent18Sun
19Mon5:406.25:555.612:110.37:026:16Waning Crescent19Mon
20Tue6:276.36:405.812:100.212:550.27:016:17Waning Crescent20Tue
21Wed7:096.57:216.012:550.01:350.07:006:17New Moon21Wed
22Thu7:476.67:586.11:36-0.22:11-0.16:596:18New Moon22Thu
23Fri8:226.68:336.22:14-0.22:45-0.26:586:19New Moon23Fri
24Sat8:556.59:066.32:50-0.33:17-0.26:576:20New Moon24Sat
25Sun9:276.49:396.33:24-0.23:48-0.26:566:21Waxing Crescent25Sun
26Mon10:006.310:146.43:58-0.14:20-0.26:556:21Waxing Crescent26Mon
27Tue10:366.110:546.44:340.04:55-0.16:536:22Waxing Crescent27Tue
28Wed11:186.011:406.55:150.25:360.06:526:23Waxing Crescent28Wed
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 4:03 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 72% 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 Waning Gibbous (72% 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