Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in St. Simons Island, GA.
Next low tide (tomorrow) : in 6h 42m at 12:05 am (0.4 ft)
Next high tide (tomorrow) : 5:45 am (5.9 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Oct 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:536.21:156.96:491.77:502.27:197:09First Quarter1Fri
2Sat1:416.12:076.97:411.88:522.27:207:08First Quarter2Sat
3Sun2:356.13:077.08:451.89:572.17:217:07First Quarter3Sun
4Mon3:356.24:117.29:531.610:571.77:217:06First Quarter4Mon
5Tue4:396.55:147.510:591.311:521.37:227:05Waxing Gibbous5Tue
6Wed5:407.06:137.812:010.97:237:03Waxing Gibbous6Wed
7Thu6:367.67:068.212:450.71:010.57:237:02Waxing Gibbous7Thu
8Fri7:288.37:568.41:350.21:570.17:247:01Full Moon8Fri
9Sat8:188.88:448.42:24-0.22:52-0.17:247:00Full Moon9Sat
10Sun9:079.19:348.33:11-0.53:44-0.27:256:59Full Moon10Sun
11Mon9:579.210:258.03:59-0.54:35-0.17:266:57Waning Gibbous11Mon
12Tue10:509.011:207.64:46-0.45:280.27:266:56Waning Gibbous12Tue
13Wed11:468.75:36-0.16:230.67:276:55Waning Gibbous13Wed
14Thu12:177.212:448.36:300.47:241.07:286:54Third Quarter14Thu
15Fri1:186.91:457.97:300.88:311.47:296:53Third Quarter15Fri
16Sat2:216.62:487.68:381.29:391.57:296:52Third Quarter16Sat
17Sun3:256.53:517.49:471.310:401.57:306:51Third Quarter17Sun
18Mon4:296.64:537.310:501.311:341.37:316:49Waning Crescent18Mon
19Tue5:296.85:487.311:471.27:316:48Waning Crescent19Tue
20Wed6:217.06:377.312:221.212:391.17:326:47Waning Crescent20Wed
21Thu7:077.37:207.41:051.01:271.07:336:46Waning Crescent21Thu
22Fri7:487.58:007.31:440.92:110.97:346:45New Moon22Fri
23Sat8:257.78:377.22:200.82:510.97:346:44New Moon23Sat
24Sun9:007.79:137.12:530.83:290.97:356:43New Moon24Sun
25Mon9:337.79:486.93:250.84:041.07:366:42New Moon25Mon
26Tue10:057.510:236.63:560.94:381.27:376:41Waxing Crescent26Tue
27Wed10:387.410:586.44:271.15:121.47:376:40Waxing Crescent27Wed
28Thu11:137.211:376.25:001.25:481.67:386:39Waxing Crescent28Thu
29Fri11:547.15:371.36:301.77:396:39Waxing Crescent29Fri
30Sat12:206.112:417.06:191.57:201.87:406:38First Quarter30Sat
31Sun1:106.01:356.97:121.68:201.87:406:37First Quarter31Sun
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 2:55 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 20% 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 Crescent (20% 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