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

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide : 11:36 pm (0.8 ft)
Next high tide : in 5h 43m at 5:10 pm (6.4 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:47 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Oct 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:215.85:076.510:271.111:171.06:196:12Waxing Gibbous1Sat
2Sun5:166.15:556.611:211.06:206:10Waxing Gibbous2Sun
3Mon6:056.46:376.612:020.812:110.96:206:09Waxing Gibbous3Mon
4Tue6:496.67:156.612:450.712:570.96:216:08Waxing Gibbous4Tue
5Wed7:306.87:516.61:250.61:410.86:226:07Full Moon5Wed
6Thu8:096.98:276.52:030.62:220.86:226:05Full Moon6Thu
7Fri8:476.99:026.32:380.63:020.96:236:04Full Moon7Fri
8Sat9:256.89:396.13:120.73:401.06:236:03Full Moon8Sat
9Sun10:026.710:165.93:440.84:171.26:246:02Waning Gibbous9Sun
10Mon10:416.510:565.64:160.94:561.46:256:01Waning Gibbous10Mon
11Tue11:226.411:395.44:501.15:391.76:256:00Waning Gibbous11Tue
12Wed12:076.45:301.26:291.86:265:58Waning Gibbous12Wed
13Thu12:275.312:586.36:191.37:291.96:275:57Third Quarter13Thu
14Fri1:215.31:556.47:211.48:321.86:275:56Third Quarter14Fri
15Sat2:225.42:586.48:301.39:331.56:285:55Third Quarter15Sat
16Sun3:285.64:046.69:381.010:281.26:295:54Third Quarter16Sun
17Mon4:356.05:056.910:410.711:210.76:295:53Waning Crescent17Mon
18Tue5:366.56:017.111:410.46:305:52Waning Crescent18Tue
19Wed6:317.16:517.212:120.312:400.16:315:51Waning Crescent19Wed
20Thu7:237.57:407.21:020.01:36-0.16:325:50New Moon20Thu
21Fri8:147.78:287.01:51-0.22:30-0.26:325:48New Moon21Fri
22Sat9:067.89:196.82:39-0.33:23-0.16:335:47New Moon22Sat
23Sun10:017.710:126.53:27-0.34:160.16:345:46Waxing Crescent23Sun
24Mon10:587.511:076.14:140.05:090.56:345:45Waxing Crescent24Mon
25Tue11:557.35:030.36:050.86:355:44Waxing Crescent25Tue
26Wed12:045.912:517.05:550.77:041.16:365:44Waxing Crescent26Wed
27Thu1:005.71:456.76:541.18:051.36:375:43First Quarter27Thu
28Fri1:565.72:406.47:581.49:031.36:375:42First Quarter28Fri
29Sat2:545.73:346.39:011.59:551.26:385:41First Quarter29Sat
30Sun3:515.94:266.210:001.410:421.06:395:40Waxing Gibbous30Sun
31Mon4:466.15:146.310:531.311:260.96:405:39Waxing Gibbous31Mon
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 8:23 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 32% 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 Third Quarter (32% 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