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

TIDE TIMES for Monday, July 27, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide : 2:03 pm (0.2 ft)
Next high tide : in 4h 50m at 8:04 am (5.4 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 6:41 am
Moon phase : Full Moon (96% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Sep 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:585.92:416.48:030.68:551.17:027:49First Quarter1Wed
2Thu2:445.73:316.38:540.89:531.27:037:48First Quarter2Thu
3Fri3:345.54:246.29:481.010:471.27:037:47First Quarter3Fri
4Sat4:275.55:196.210:401.011:391.17:047:46First Quarter4Sat
5Sun5:235.66:126.311:320.97:047:44Waxing Gibbous5Sun
6Mon6:175.87:006.512:271.012:210.87:057:43Waxing Gibbous6Mon
7Tue7:086.07:456.61:140.91:090.77:057:42Waxing Gibbous7Tue
8Wed7:546.28:276.71:580.71:560.67:067:41Waxing Gibbous8Wed
9Thu8:386.39:066.72:400.62:400.57:077:39Full Moon9Thu
10Fri9:186.49:436.63:190.53:230.47:077:38Full Moon10Fri
11Sat9:576.410:196.53:560.54:030.57:087:37Full Moon11Sat
12Sun10:356.410:546.34:310.54:430.57:087:36Full Moon12Sun
13Mon11:136.411:316.15:050.65:240.77:097:34Waning Gibbous13Mon
14Tue11:546.45:410.66:080.97:097:33Waning Gibbous14Tue
15Wed12:125.912:406.46:210.66:581.17:107:32Waning Gibbous15Wed
16Thu12:585.81:326.57:070.77:581.37:117:30Waning Gibbous16Thu
17Fri1:515.62:316.58:040.89:061.47:117:29Third Quarter17Fri
18Sat2:525.63:386.69:110.710:151.37:127:28Third Quarter18Sat
19Sun4:025.64:526.710:190.611:191.07:127:27Third Quarter19Sun
20Mon5:175.86:027.011:250.47:137:25Waning Crescent20Mon
21Tue6:266.17:037.212:180.712:270.17:137:24Waning Crescent21Tue
22Wed7:276.67:577.41:140.41:27-0.17:147:23Waning Crescent22Wed
23Thu8:216.98:477.42:070.12:25-0.37:157:22New Moon23Thu
24Fri9:137.29:347.32:57-0.13:19-0.37:157:20New Moon24Fri
25Sat10:037.310:207.03:44-0.24:10-0.27:167:19New Moon25Sat
26Sun10:527.311:066.74:28-0.14:590.07:167:18New Moon26Sun
27Mon11:417.111:516.45:100.15:470.47:177:16Waxing Crescent27Mon
28Tue12:296.95:520.46:350.87:177:15Waxing Crescent28Tue
29Wed12:366.11:166.76:340.87:261.27:187:14Waxing Crescent29Wed
30Thu1:215.92:036.57:181.18:201.57:197:13First Quarter30Thu
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 11:03 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 96% 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 Full Moon (96% 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