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 : 10:06 am (0.4 ft)
Next high tide : in 1h 55m at 3:46 am (5.3 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 - Sep 1974

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:196.49:426.53:170.43:250.47:027:49Full Moon1Sun
2Mon9:586.410:176.33:540.44:050.47:037:48Full Moon2Mon
3Tue10:366.310:526.14:280.44:440.57:037:47Full Moon3Tue
4Wed11:146.311:285.95:020.55:230.77:047:46Waning Gibbous4Wed
5Thu11:546.25:370.56:060.97:047:45Waning Gibbous5Thu
6Fri12:085.812:396.36:160.66:541.17:057:43Waning Gibbous6Fri
7Sat12:535.61:296.37:020.67:521.37:057:42Waning Gibbous7Sat
8Sun1:455.62:266.37:580.78:571.47:067:41Third Quarter8Sun
9Mon2:445.53:306.49:040.610:041.27:067:40Third Quarter9Mon
10Tue3:525.64:406.610:120.511:071.07:077:38Third Quarter10Tue
11Wed5:055.85:496.811:170.27:087:37Waning Crescent11Wed
12Thu6:146.26:517.112:060.612:190.07:087:36Waning Crescent12Thu
13Fri7:156.77:457.31:010.21:19-0.37:097:35Waning Crescent13Fri
14Sat8:117.18:357.31:55-0.12:17-0.57:097:33New Moon14Sat
15Sun9:037.39:247.32:45-0.33:11-0.57:107:32New Moon15Sun
16Mon9:557.410:117.03:34-0.44:04-0.47:107:31New Moon16Mon
17Tue10:467.410:596.74:20-0.44:54-0.27:117:29New Moon17Tue
18Wed11:387.211:486.45:05-0.25:440.27:127:28Waxing Crescent18Wed
19Thu12:297.05:490.26:340.67:127:27Waxing Crescent19Thu
20Fri12:366.11:196.86:340.57:261.07:137:26Waxing Crescent20Fri
21Sat1:245.92:086.57:220.98:221.37:137:24First Quarter21Sat
22Sun2:135.82:576.38:151.29:191.47:147:23First Quarter22Sun
23Mon3:045.73:496.29:131.310:141.47:147:22First Quarter23Mon
24Tue3:585.74:426.210:101.411:051.37:157:20First Quarter24Tue
25Wed4:555.95:356.311:041.311:521.17:167:19Waxing Gibbous25Wed
26Thu5:506.16:256.411:551.17:167:18Waxing Gibbous26Thu
27Fri6:416.47:116.612:370.912:441.07:177:17Waxing Gibbous27Fri
28Sat7:286.67:536.71:200.81:310.87:177:15Waxing Gibbous28Sat
29Sun8:116.88:336.72:010.62:160.77:187:14Full Moon29Sun
30Mon8:516.99:106.62:410.63:000.77:197:13Full Moon30Mon
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 6:56 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 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