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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in St. Marys, St. Marys River, GA.
Next low tide : in 2h 58m at 8:43 pm (0.3 ft)
Next high tide (tomorrow) : 2:54 am (5.9 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 6:23 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Aug 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:046.19:456.83:05-0.43:09-0.66:448:20Full Moon1Wed
2Thu9:556.210:306.63:53-0.44:00-0.46:448:19Full Moon2Thu
3Fri10:446.211:146.44:37-0.44:47-0.26:458:19Full Moon3Fri
4Sat11:326.111:556.15:19-0.25:320.16:468:18Waning Gibbous4Sat
5Sun12:176.16:000.06:160.46:468:17Waning Gibbous5Sun
6Mon12:355.91:026.06:400.27:020.76:478:16Waning Gibbous6Mon
7Tue1:155.71:465.97:210.47:501.06:488:15Waning Gibbous7Tue
8Wed1:565.52:315.98:060.68:431.26:488:14Third Quarter8Wed
9Thu2:415.43:195.88:550.79:391.36:498:13Third Quarter9Thu
10Fri3:315.34:125.89:460.710:341.26:498:12Third Quarter10Fri
11Sat4:265.35:085.910:380.611:271.16:508:12Third Quarter11Sat
12Sun5:245.36:046.111:290.56:518:11Waning Crescent12Sun
13Mon6:205.46:566.312:181.012:190.46:518:10Waning Crescent13Mon
14Tue7:125.67:436.51:070.81:090.26:528:09Waning Crescent14Tue
15Wed7:595.88:266.71:530.61:580.06:528:08Waning Crescent15Wed
16Thu8:435.99:066.72:380.42:46-0.16:538:07New Moon16Thu
17Fri9:256.19:476.73:200.23:32-0.26:548:06New Moon17Fri
18Sat10:086.210:286.74:010.04:19-0.36:548:05New Moon18Sat
19Sun10:546.311:126.54:42-0.15:06-0.26:558:03Waxing Crescent19Sun
20Mon11:446.45:25-0.25:550.06:558:02Waxing Crescent20Mon
21Tue12:006.412:386.56:10-0.26:490.26:568:01Waxing Crescent21Tue
22Wed12:526.21:356.57:00-0.17:490.56:578:00Waxing Crescent22Wed
23Thu1:476.02:366.57:560.08:540.66:577:59First Quarter23Thu
24Fri2:465.93:416.68:590.110:010.66:587:58First Quarter24Fri
25Sat3:505.84:506.610:040.111:040.56:587:57First Quarter25Sat
26Sun4:585.85:566.811:070.16:597:56Waxing Gibbous26Sun
27Mon6:036.06:556.912:030.312:070.07:007:54Waxing Gibbous27Mon
28Tue7:036.37:477.012:580.21:05-0.17:007:53Waxing Gibbous28Tue
29Wed7:566.58:347.01:500.02:00-0.17:017:52Waxing Gibbous29Wed
30Thu8:446.79:166.82:39-0.12:51-0.17:017:51Full Moon30Thu
31Fri9:296.79:566.63:24-0.13:390.07:027:50Full Moon31Fri
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 11:48 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 37% 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 (37% 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