Tides Today & Tomorrow in St. Simons Island, GA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in St. Simons Island, GA.
Next low tide (tomorrow) : 2:58 am (0.4 ft)
Next high tide : in 5h 08m at 8:20 pm (7.0 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:24 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8677344
Common Questions About Tides

St. Simons Island, GA Tides - Jan 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:556.111:195.74:440.25:210.17:245:34Waxing Crescent1Thu
2Fri11:375.95:270.46:030.17:245:35First Quarter2Fri
3Sat12:065.912:255.86:190.56:530.17:245:36First Quarter3Sat
4Sun12:576.01:195.67:210.67:490.07:245:36First Quarter4Sun
5Mon1:556.22:205.58:320.68:52-0.17:245:37First Quarter5Mon
6Tue2:586.53:285.49:440.49:57-0.47:245:38Waxing Gibbous6Tue
7Wed4:056.84:375.610:530.111:01-0.77:245:39Waxing Gibbous7Wed
8Thu5:127.15:425.911:58-0.37:245:39Waxing Gibbous8Thu
9Fri6:147.56:426.212:04-1.112:59-0.77:245:40Full Moon9Fri
10Sat7:117.87:386.51:05-1.41:54-1.17:245:41Full Moon10Sat
11Sun8:057.98:326.72:01-1.72:45-1.37:245:42Full Moon11Sun
12Mon8:577.99:256.82:55-1.83:33-1.47:245:43Full Moon12Mon
13Tue9:497.610:196.83:46-1.64:20-1.47:245:44Waning Gibbous13Tue
14Wed10:407.311:126.74:37-1.35:06-1.17:245:45Waning Gibbous14Wed
15Thu11:306.85:29-0.95:53-0.87:245:45Waning Gibbous15Thu
16Fri12:046.512:206.36:23-0.46:41-0.57:245:46Third Quarter16Fri
17Sat12:566.31:105.87:210.17:32-0.27:235:47Third Quarter17Sat
18Sun1:476.12:015.48:220.48:250.17:235:48Third Quarter18Sun
19Mon2:415.92:555.29:210.69:180.27:235:49Third Quarter19Mon
20Tue3:375.93:525.010:170.610:100.37:235:50Waning Crescent20Tue
21Wed4:335.94:485.111:090.511:010.27:225:51Waning Crescent21Wed
22Thu5:266.05:405.211:580.411:510.17:225:52Waning Crescent22Thu
23Fri6:146.16:275.412:440.27:225:53Waning Crescent23Fri
24Sat6:576.37:095.512:37-0.11:260.07:215:53New Moon24Sat
25Sun7:366.47:475.71:20-0.22:04-0.17:215:54New Moon25Sun
26Mon8:116.58:235.82:00-0.32:39-0.37:205:55New Moon26Mon
27Tue8:446.48:575.92:37-0.43:12-0.47:205:56New Moon27Tue
28Wed9:176.39:316.03:13-0.43:44-0.47:195:57Waxing Crescent28Wed
29Thu9:516.210:096.13:49-0.34:17-0.47:195:58Waxing Crescent29Thu
30Fri10:286.110:506.24:26-0.24:52-0.47:185:59Waxing Crescent30Fri
31Sat11:115.911:376.35:080.05:33-0.37:176:00Waxing Crescent31Sat
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 11:39 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 98% 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 (98% 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