Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide : 3:58 pm (0.3 ft)
Next high tide : in 2h 36m at 9:52 am (5.7 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 - Feb 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:456.25:025.311:230.211:23-0.17:176:01Waning Crescent1Thu
2Fri5:426.35:565.412:160.17:166:01Waning Crescent2Fri
3Sat6:326.46:455.612:16-0.21:04-0.17:156:02Waning Crescent3Sat
4Sun7:166.57:285.81:05-0.31:46-0.27:156:03New Moon4Sun
5Mon7:556.68:076.01:47-0.42:23-0.37:146:04New Moon5Mon
6Tue8:326.58:446.02:26-0.42:57-0.47:136:05New Moon6Tue
7Wed9:076.49:206.03:01-0.33:27-0.37:126:06New Moon7Wed
8Thu9:416.29:546.03:34-0.23:56-0.37:126:07Waxing Crescent8Thu
9Fri10:135.910:276.04:060.04:25-0.17:116:08Waxing Crescent9Fri
10Sat10:465.711:036.04:380.24:560.07:106:08Waxing Crescent10Sat
11Sun11:225.411:416.05:140.45:310.17:096:09Waxing Crescent11Sun
12Mon12:025.25:560.66:130.37:086:10First Quarter12Mon
13Tue12:265.912:495.16:470.87:050.47:076:11First Quarter13Tue
14Wed1:176.01:445.07:510.98:080.47:076:12First Quarter14Wed
15Thu2:176.02:485.09:030.99:160.27:066:13First Quarter15Thu
16Fri3:256.23:585.210:130.610:24-0.17:056:13Waxing Gibbous16Fri
17Sat4:346.55:065.711:170.211:28-0.57:046:14Waxing Gibbous17Sat
18Sun5:377.06:056.212:16-0.37:036:15Waxing Gibbous18Sun
19Mon6:347.46:596.812:29-1.01:10-0.87:026:16Full Moon19Mon
20Tue7:267.87:517.31:26-1.41:59-1.37:016:17Full Moon20Tue
21Wed8:157.98:417.62:20-1.72:46-1.57:006:17Full Moon21Wed
22Thu9:057.89:327.73:11-1.83:32-1.66:596:18Waning Gibbous22Thu
23Fri9:557.510:247.74:01-1.64:17-1.56:586:19Waning Gibbous23Fri
24Sat10:477.011:177.44:53-1.25:04-1.16:576:20Waning Gibbous24Sat
25Sun11:396.55:47-0.65:54-0.76:566:21Waning Gibbous25Sun
26Mon12:127.112:346.16:46-0.16:49-0.26:546:21Third Quarter26Mon
27Tue1:096.71:315.77:510.37:530.36:536:22Third Quarter27Tue
28Wed2:096.32:325.48:570.68:590.56:526:23Third Quarter28Wed
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 12:55 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