30.7200’ N, 81.5483’ W

St. Marys, St. Marys River, GA

54°
H 76°
L 53°
N
5mph
High tide
5:44 am

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

TIDE TIMES for Wednesday, October 21, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide : 11:43 am (1.2 ft)
Next high tide : in 2h 12m at 5:44 am (6.0 ft)
Sunset today : 6:48 pm
Sunrise tomorrow : 7:32 am
Moon phase : Waxing Gibbous (78% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - May 1812

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:075.56:090.45:580.25:457:08Waning Gibbous1Fri
2Sat12:246.212:565.57:010.56:540.35:447:08Third Quarter2Sat
3Sun1:156.11:515.57:590.58:000.45:437:09Third Quarter3Sun
4Mon2:146.02:535.79:000.49:100.35:437:10Third Quarter4Mon
5Tue3:226.04:035.99:590.110:180.25:427:10Third Quarter5Tue
6Wed4:356.05:126.310:57-0.211:22-0.15:417:11Waning Crescent6Wed
7Thu5:426.26:156.711:53-0.55:407:12Waning Crescent7Thu
8Fri6:426.37:127.112:25-0.312:48-0.75:397:12Waning Crescent8Fri
9Sat7:376.38:067.31:24-0.61:41-0.95:397:13New Moon9Sat
10Sun8:296.38:587.42:20-0.72:32-1.05:387:14New Moon10Sun
11Mon9:216.29:507.33:13-0.73:21-0.95:377:14New Moon11Mon
12Tue10:136.010:407.14:03-0.64:08-0.75:367:15Waxing Crescent12Tue
13Wed11:045.811:296.84:51-0.44:55-0.45:367:16Waxing Crescent13Wed
14Thu11:535.75:40-0.15:420.05:357:16Waxing Crescent14Thu
15Fri12:156.512:415.56:290.26:330.45:347:17Waxing Crescent15Fri
16Sat1:006.21:295.47:200.47:270.75:347:18First Quarter16Sat
17Sun1:445.92:195.48:120.68:240.95:337:18First Quarter17Sun
18Mon2:325.73:125.59:030.69:210.95:337:19First Quarter18Mon
19Tue3:235.64:075.69:520.510:160.95:327:20First Quarter19Tue
20Wed4:165.65:015.810:380.411:080.75:317:20Waxing Gibbous20Wed
21Thu5:105.65:536.011:240.311:580.65:317:21Waxing Gibbous21Thu
22Fri6:005.76:406.212:080.25:307:22Waxing Gibbous22Fri
23Sat6:475.87:256.412:470.412:510.15:307:22Waxing Gibbous23Sat
24Sun7:325.88:076.51:340.21:330.05:307:23Full Moon24Sun
25Mon8:145.78:476.52:190.12:14-0.15:297:23Full Moon25Mon
26Tue8:565.69:266.53:020.02:53-0.15:297:24Full Moon26Tue
27Wed9:385.510:056.43:430.03:32-0.25:287:25Full Moon27Wed
28Thu10:215.510:456.44:240.04:13-0.25:287:25Waning Gibbous28Thu
29Fri11:065.411:296.45:070.14:57-0.15:287:26Waning Gibbous29Fri
30Sat11:555.55:530.15:460.05:277:26Waning Gibbous30Sat
31Sun12:166.312:465.66:440.16:440.15:277:27Waning Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8679964)

Common Questions About St. Marys, St. Marys River, GA Tides

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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 78% 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 Waxing Gibbous (78% 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