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 4h 09m 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 - May 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:396.82:105.78:020.08:120.06:418:05First Quarter1Thu
2Fri2:366.63:125.79:040.19:180.16:408:05First Quarter2Fri
3Sat3:386.44:185.810:060.110:250.16:398:06First Quarter3Sat
4Sun4:456.35:266.011:050.011:290.16:388:07First Quarter4Sun
5Mon5:506.26:306.312:02-0.26:378:07Waxing Gibbous5Mon
6Tue6:496.27:276.612:31-0.112:55-0.36:378:08Waxing Gibbous6Tue
7Wed7:426.28:176.81:29-0.21:46-0.46:368:09Waxing Gibbous7Wed
8Thu8:296.19:047.02:23-0.32:34-0.46:358:09Full Moon8Thu
9Fri9:136.09:486.93:14-0.43:18-0.46:348:10Full Moon9Fri
10Sat9:555.910:296.84:00-0.34:00-0.36:348:11Full Moon10Sat
11Sun10:365.811:106.64:43-0.24:38-0.16:338:11Full Moon11Sun
12Mon11:185.611:496.45:240.05:160.16:328:12Waning Gibbous12Mon
13Tue12:005.56:040.25:520.36:328:13Waning Gibbous13Tue
14Wed12:276.212:445.46:450.46:300.66:318:13Waning Gibbous14Wed
15Thu1:066.01:295.47:280.67:120.86:308:14Waning Gibbous15Thu
16Fri1:475.82:155.38:140.78:011.06:308:15Third Quarter16Fri
17Sat2:325.73:055.39:040.88:591.16:298:15Third Quarter17Sat
18Sun3:215.63:585.39:550.810:001.16:298:16Third Quarter18Sun
19Mon4:165.54:565.410:460.710:591.06:288:17Third Quarter19Mon
20Tue5:155.55:535.711:350.511:570.86:278:17Waning Crescent20Tue
21Wed6:135.56:486.012:240.36:278:18Waning Crescent21Wed
22Thu7:065.67:386.312:530.51:120.06:278:18Waning Crescent22Thu
23Fri7:555.78:256.61:470.32:00-0.26:268:19Waning Crescent23Fri
24Sat8:425.89:126.82:400.02:49-0.46:268:20New Moon24Sat
25Sun9:305.810:007.03:31-0.23:36-0.66:258:20New Moon25Sun
26Mon10:215.810:517.14:21-0.44:24-0.86:258:21New Moon26Mon
27Tue11:155.711:457.15:10-0.55:13-0.86:258:21Waxing Crescent27Tue
28Wed12:125.76:01-0.56:05-0.66:248:22Waxing Crescent28Wed
29Thu12:407.01:105.86:53-0.47:00-0.46:248:23Waxing Crescent29Thu
30Fri1:346.82:085.87:49-0.38:01-0.26:248:23Waxing Crescent30Fri
31Sat2:296.63:065.98:48-0.29:060.06:238:24First Quarter31Sat
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