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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide : 10:59 pm (0.9 ft)
Next high tide : in 6h 08m at 4:40 pm (5.8 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 6:37 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Feb 1974

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:065.74:265.010:460.710:57-0.18:177:02First Quarter1Fri
2Sat5:275.85:485.011:540.58:177:02Waxing Gibbous2Sat
3Sun6:456.17:035.312:04-0.412:590.28:167:03Waxing Gibbous3Sun
4Mon7:506.58:085.71:08-0.71:59-0.28:157:04Waxing Gibbous4Mon
5Tue8:476.89:056.12:10-1.02:55-0.68:157:05Full Moon5Tue
6Wed9:396.99:596.43:08-1.33:46-0.98:147:06Full Moon6Wed
7Thu10:286.910:516.64:01-1.44:33-1.18:137:07Full Moon7Thu
8Fri11:156.811:416.64:52-1.45:17-1.18:127:08Waning Gibbous8Fri
9Sat12:006.65:40-1.26:00-0.98:127:08Waning Gibbous9Sat
10Sun12:286.512:426.26:28-0.86:43-0.68:117:09Waning Gibbous10Sun
11Mon1:146.41:235.97:17-0.37:27-0.38:107:10Waning Gibbous11Mon
12Tue1:586.12:045.68:080.18:130.08:097:11Third Quarter12Tue
13Wed2:445.82:485.39:030.59:040.38:087:12Third Quarter13Wed
14Thu3:335.53:385.010:000.89:580.58:077:13Third Quarter14Thu
15Fri4:305.44:354.910:570.910:540.68:067:13Third Quarter15Fri
16Sat5:335.35:384.911:520.811:500.68:057:14Waning Crescent16Sat
17Sun6:345.46:385.112:450.78:057:15Waning Crescent17Sun
18Mon7:275.67:335.312:450.51:360.58:047:16Waning Crescent18Mon
19Tue8:155.88:225.61:360.32:220.38:037:17Waning Crescent19Tue
20Wed8:586.09:065.82:250.13:040.18:027:17New Moon20Wed
21Thu9:386.19:475.93:09-0.13:430.08:017:18New Moon21Thu
22Fri10:156.110:266.03:50-0.34:18-0.28:007:19New Moon22Fri
23Sat10:506.011:026.04:28-0.44:52-0.27:597:20New Moon23Sat
24Sun11:235.911:376.15:06-0.35:25-0.37:587:20Waxing Crescent24Sun
25Mon11:565.85:45-0.36:01-0.37:567:21Waxing Crescent25Mon
26Tue12:146.112:325.76:27-0.16:40-0.37:557:22Waxing Crescent26Tue
27Wed12:566.11:145.57:150.27:26-0.27:547:23Waxing Crescent27Wed
28Thu1:436.12:035.38:120.48:23-0.17:537:23First Quarter28Thu
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 7:49 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 62% 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 First Quarter (62% 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