Tides Today & Tomorrow in St. Marys, St. Marys River, GA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide : 7:28 pm (0.5 ft)
Next high tide : in 5h 14m at 1:31 pm (5.4 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Sep 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:446.510:056.43:430.33:550.47:027:49Full Moon1Wed
2Thu10:246.410:426.24:190.34:340.67:037:48Full Moon2Thu
3Fri11:046.311:196.04:530.55:110.87:037:47Waning Gibbous3Fri
4Sat11:446.211:595.85:260.65:491.07:047:45Waning Gibbous4Sat
5Sun12:266.16:000.76:291.27:047:44Waning Gibbous5Sun
6Mon12:405.71:086.16:360.97:151.47:057:43Waning Gibbous6Mon
7Tue1:235.51:546.07:201.08:101.67:067:42Third Quarter7Tue
8Wed2:115.42:456.18:131.09:111.67:067:40Third Quarter8Wed
9Thu3:045.43:436.19:141.010:131.57:077:39Third Quarter9Thu
10Fri4:045.44:466.310:180.811:121.27:077:38Third Quarter10Fri
11Sat5:095.75:496.611:190.67:087:37Waning Crescent11Sat
12Sun6:136.06:466.912:070.912:190.27:087:35Waning Crescent12Sun
13Mon7:106.57:387.11:000.51:16-0.17:097:34Waning Crescent13Mon
14Tue8:036.98:287.31:510.12:13-0.37:107:33New Moon14Tue
15Wed8:557.29:177.32:41-0.23:08-0.57:107:31New Moon15Wed
16Thu9:487.410:077.23:30-0.44:01-0.57:117:30New Moon16Thu
17Fri10:427.510:596.94:18-0.54:54-0.47:117:29New Moon17Fri
18Sat11:407.411:546.75:06-0.45:47-0.17:127:28Waxing Crescent18Sat
19Sun12:387.35:55-0.26:430.37:127:26Waxing Crescent19Sun
20Mon12:496.41:367.16:470.17:410.67:137:25Waxing Crescent20Mon
21Tue1:456.22:336.97:430.58:430.97:147:24First Quarter21Tue
22Wed2:416.03:306.78:440.89:451.07:147:23First Quarter22Wed
23Thu3:385.94:286.69:470.910:431.07:157:21First Quarter23Thu
24Fri4:376.05:246.510:461.011:350.97:157:20First Quarter24Fri
25Sat5:346.16:156.511:410.97:167:19Waxing Gibbous25Sat
26Sun6:266.47:006.612:230.812:320.87:167:17Waxing Gibbous26Sun
27Mon7:136.67:416.61:070.61:200.87:177:16Waxing Gibbous27Mon
28Tue7:566.88:196.71:500.52:060.77:187:15Waxing Gibbous28Tue
29Wed8:376.98:576.62:300.52:490.77:187:14Full Moon29Wed
30Thu9:177.09:336.53:080.53:300.77:197:12Full Moon30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8679964)

Common Questions About St. Marys, St. Marys River, GA Tides

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What time does the tide turn (slack tide) in St. Marys, St. Marys River, GA today?

Slack tide in St. Marys, St. Marys River, GA is approximately 4:29 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. Marys, St. Marys River, GA?

St. Marys, St. Marys River, 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. Marys, St. Marys River, 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. Marys, St. Marys River, GA?

Tide predictions for St. Marys, St. Marys River, 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. Marys, St. Marys River, GA?

Tide data for St. Marys, St. Marys River, GA is sourced from NOAA Station #8679964. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8679964.

What is the moon phase in St. Marys, St. Marys River, GA tonight?

Tonight the moon over St. Marys, St. Marys River, GA is Waning Gibbous (72% illuminated). This places St. Marys, St. Marys River, 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