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 4h 52m 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 - Jan 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:367.15:076.311:19-0.311:34-1.17:245:34Waxing Gibbous1Wed
2Thu5:397.56:086.512:22-0.77:245:35Waxing Gibbous2Thu
3Fri6:377.97:056.812:33-1.41:20-1.17:245:36Full Moon3Fri
4Sat7:328.18:007.01:30-1.72:14-1.47:245:36Full Moon4Sat
5Sun8:258.18:547.02:25-1.93:05-1.57:245:37Full Moon5Sun
6Mon9:188.09:486.93:17-1.83:54-1.57:245:38Waning Gibbous6Mon
7Tue10:107.710:426.74:08-1.64:42-1.37:245:39Waning Gibbous7Tue
8Wed11:037.311:366.54:59-1.25:31-1.07:245:40Waning Gibbous8Wed
9Thu11:556.85:52-0.76:21-0.67:245:40Waning Gibbous9Thu
10Fri12:306.312:466.46:49-0.27:14-0.37:245:41Third Quarter10Fri
11Sat1:226.11:376.07:480.18:07-0.17:245:42Third Quarter11Sat
12Sun2:166.02:305.78:470.38:590.17:245:43Third Quarter12Sun
13Mon3:105.93:245.59:440.49:500.17:245:44Third Quarter13Mon
14Tue4:055.94:195.410:370.410:380.17:245:45Waning Crescent14Tue
15Wed4:576.05:115.511:270.311:250.07:245:46Waning Crescent15Wed
16Thu5:466.25:595.612:140.17:245:46Waning Crescent16Thu
17Fri6:306.46:435.712:11-0.212:58-0.17:235:47Waning Crescent17Fri
18Sat7:106.57:235.812:54-0.31:38-0.27:235:48New Moon18Sat
19Sun7:476.68:005.91:35-0.52:16-0.47:235:49New Moon19Sun
20Mon8:226.68:355.92:14-0.62:52-0.57:225:50New Moon20Mon
21Tue8:566.69:106.02:51-0.63:26-0.57:225:51New Moon21Tue
22Wed9:306.59:476.03:27-0.64:01-0.57:225:52Waxing Crescent22Wed
23Thu10:086.410:286.14:04-0.54:38-0.57:215:53Waxing Crescent23Thu
24Fri10:506.311:146.24:45-0.45:18-0.57:215:54Waxing Crescent24Fri
25Sat11:376.25:31-0.26:04-0.47:205:55Waxing Crescent25Sat
26Sun12:046.212:296.06:260.06:58-0.47:205:55First Quarter26Sun
27Mon1:006.31:275.87:310.18:01-0.47:195:56First Quarter27Mon
28Tue2:016.42:325.78:450.19:08-0.57:195:57First Quarter28Tue
29Wed3:086.63:425.89:570.010:14-0.77:185:58Waxing Gibbous29Wed
30Thu4:186.84:526.011:05-0.311:19-1.07:185:59Waxing Gibbous30Thu
31Fri5:247.25:566.312:07-0.77:176:00Waxing Gibbous31Fri
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