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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in St. Marys, St. Marys River, GA.
Next low tide : in 2h 28m at 5:25 am (-0.4 ft)
Next high tide : 11:43 am (5.9 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Sep 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:516.39:106.82:430.52:540.27:027:49New Moon1Fri
2Sat9:326.39:486.73:220.43:360.27:037:48New Moon2Sat
3Sun10:116.310:256.54:000.44:180.27:037:47New Moon3Sun
4Mon10:496.211:036.44:360.34:590.37:047:46Waxing Crescent4Mon
5Tue11:286.211:446.35:120.35:410.57:047:45Waxing Crescent5Tue
6Wed12:116.35:510.46:280.77:057:43Waxing Crescent6Wed
7Thu12:296.11:006.36:340.47:220.97:057:42Waxing Crescent7Thu
8Fri1:186.01:546.47:250.58:231.07:067:41First Quarter8Fri
9Sat2:135.92:566.48:250.59:291.07:077:40First Quarter9Sat
10Sun3:155.94:056.59:320.410:340.87:077:38First Quarter10Sun
11Mon4:226.05:176.710:380.311:350.57:087:37First Quarter11Mon
12Tue5:336.26:237.011:410.17:087:36Waxing Gibbous12Tue
13Wed6:386.67:217.212:320.212:42-0.17:097:34Waxing Gibbous13Wed
14Thu7:366.98:147.31:28-0.11:41-0.37:097:33Waxing Gibbous14Thu
15Fri8:307.29:037.32:20-0.32:37-0.47:107:32Full Moon15Fri
16Sat9:217.39:517.23:10-0.43:30-0.47:107:31Full Moon16Sat
17Sun10:117.310:376.93:58-0.44:20-0.27:117:29Full Moon17Sun
18Mon11:017.211:246.64:43-0.25:080.17:127:28Waning Gibbous18Mon
19Tue11:507.05:260.05:560.47:127:27Waning Gibbous19Tue
20Wed12:096.312:376.86:090.36:430.87:137:26Waning Gibbous20Wed
21Thu12:546.11:236.66:530.77:331.27:137:24Waning Gibbous21Thu
22Fri1:405.92:096.47:411.08:271.47:147:23Third Quarter22Fri
23Sat2:275.82:576.38:331.29:221.57:147:22Third Quarter23Sat
24Sun3:185.73:486.39:281.310:161.57:157:20Third Quarter24Sun
25Mon4:135.84:426.310:231.311:071.37:167:19Third Quarter25Mon
26Tue5:095.95:376.411:151.111:551.17:167:18Waning Crescent26Tue
27Wed6:046.16:286.612:061.07:177:17Waning Crescent27Wed
28Thu6:556.47:156.812:411.012:540.87:177:15Waning Crescent28Thu
29Fri7:416.67:586.91:250.81:420.67:187:14Waning Crescent29Fri
30Sat8:246.78:396.92:070.62:280.57:197:13New Moon30Sat
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 8:34 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 spring phase. Tonight's moon is 7% 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 near their weekly maximum.

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 Crescent (7% illuminated). This places St. Marys, St. Marys River, GA in a spring tide cycle, so tidal ranges are near their weekly maximum 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