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

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide : 10:54 am (0.4 ft)
Next high tide : in 2h 29m at 4:36 am (5.2 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 6:38 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Dec 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:396.45:405.811:470.911:500.47:065:24Waning Crescent1Fri
2Sat6:266.66:255.812:360.87:075:24Waning Crescent2Sat
3Sun7:106.77:095.812:330.41:230.77:075:24Waning Crescent3Sun
4Mon7:526.77:525.81:160.32:080.67:085:24New Moon4Mon
5Tue8:336.78:355.71:570.32:500.67:095:24New Moon5Tue
6Wed9:136.69:175.62:360.33:300.67:105:24New Moon6Wed
7Thu9:536.59:595.53:140.34:080.67:105:24New Moon7Thu
8Fri10:316.410:415.53:510.34:450.77:115:24Waxing Crescent8Fri
9Sat11:086.311:235.54:290.35:230.77:125:25Waxing Crescent9Sat
10Sun11:456.25:100.46:030.77:135:25Waxing Crescent10Sun
11Mon12:065.512:256.15:560.56:480.77:135:25Waxing Crescent11Mon
12Tue12:515.61:086.06:500.67:380.67:145:25First Quarter12Tue
13Wed1:415.81:585.97:530.78:320.47:155:26First Quarter13Wed
14Thu2:375.92:545.89:010.89:290.27:155:26First Quarter14Thu
15Fri3:426.13:595.610:070.710:260.07:165:26Waxing Gibbous15Fri
16Sat4:516.45:075.611:130.611:24-0.37:175:27Waxing Gibbous16Sat
17Sun5:596.76:135.712:160.47:175:27Waxing Gibbous17Sun
18Mon7:017.07:145.712:23-0.51:180.17:185:27Waxing Gibbous18Mon
19Tue7:597.28:125.81:21-0.72:16-0.17:185:28Full Moon19Tue
20Wed8:557.39:105.92:17-0.83:09-0.27:195:28Full Moon20Wed
21Thu9:507.210:085.93:11-0.84:00-0.37:195:29Full Moon21Thu
22Fri10:427.011:025.94:03-0.74:48-0.27:205:29Waning Gibbous22Fri
23Sat11:306.811:545.94:54-0.55:35-0.17:205:30Waning Gibbous23Sat
24Sun12:156.55:45-0.16:220.17:215:30Waning Gibbous24Sun
25Mon12:435.912:586.16:380.37:090.37:215:31Third Quarter25Mon
26Tue1:305.81:395.87:330.67:580.47:225:32Third Quarter26Tue
27Wed2:195.72:235.58:300.88:470.57:225:32Third Quarter27Wed
28Thu3:105.73:115.39:260.99:350.57:225:33Third Quarter28Thu
29Fri4:055.74:045.210:211.010:230.57:235:33Waning Crescent29Fri
30Sat5:015.84:595.211:140.911:110.47:235:34Waning Crescent30Sat
31Sun5:555.95:545.212:060.87:235:35Waning Crescent31Sun
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 7:45 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. Marys, St. Marys River, GA?

St. Marys, St. Marys River, GA is currently in a transitional phase. Tonight's moon is 71% 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 Waxing Gibbous (71% 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