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

TIDE TIMES for Monday, July 27, 2026
The tide is currently falling in St. Marys, St. Marys River, GA.
Next low tide : in 9m at 2:17 am (0.5 ft)
Next high tide : 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 - Oct 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:085.72:516.38:081.49:171.67:197:11First Quarter1Fri
2Sat2:595.63:426.29:041.510:121.67:207:10First Quarter2Sat
3Sun3:545.64:376.210:021.511:041.57:207:09First Quarter3Sun
4Mon4:515.85:336.310:571.411:521.37:217:08Waxing Gibbous4Mon
5Tue5:486.06:246.511:501.37:227:07Waxing Gibbous5Tue
6Wed6:406.27:116.612:381.112:401.17:227:05Waxing Gibbous6Wed
7Thu7:286.57:546.81:210.91:270.97:237:04Waxing Gibbous7Thu
8Fri8:116.78:336.82:030.72:140.77:247:03Waxing Gibbous8Fri
9Sat8:516.89:116.72:430.62:580.67:247:02Full Moon9Sat
10Sun9:296.99:476.63:210.53:420.67:257:01Full Moon10Sun
11Mon10:076.910:246.43:580.54:240.67:266:59Full Moon11Mon
12Tue10:476.911:046.24:350.45:080.77:266:58Waning Gibbous12Tue
13Wed11:326.911:506.05:140.55:550.97:276:57Waning Gibbous13Wed
14Thu12:236.95:580.56:471.17:276:56Waning Gibbous14Thu
15Fri12:435.81:206.96:480.77:471.37:286:55Waning Gibbous15Fri
16Sat1:435.72:226.87:480.88:541.37:296:54Third Quarter16Sat
17Sun2:485.73:296.88:560.910:001.27:306:53Third Quarter17Sun
18Mon3:595.84:386.910:070.811:020.97:306:52Third Quarter18Mon
19Tue5:116.15:457.011:130.611:580.67:316:50Waning Crescent19Tue
20Wed6:166.56:447.112:150.37:326:49Waning Crescent20Wed
21Thu7:147.07:357.212:520.31:140.17:326:48Waning Crescent21Thu
22Fri8:067.38:237.11:420.12:100.07:336:47Waning Crescent22Fri
23Sat8:547.59:077.02:30-0.13:020.07:346:46New Moon23Sat
24Sun9:417.69:496.73:15-0.13:520.17:356:45New Moon24Sun
25Mon10:267.410:326.43:580.04:390.37:356:44New Moon25Mon
26Tue11:117.211:156.24:390.35:240.67:366:43Waxing Crescent26Tue
27Wed11:557.011:595.95:180.56:080.97:376:42Waxing Crescent27Wed
28Thu12:396.75:560.86:541.37:386:42Waxing Crescent28Thu
29Fri12:465.71:236.56:371.27:431.57:386:41Waxing Crescent29Fri
30Sat1:345.62:086.37:231.48:351.67:396:40First Quarter30Sat
31Sun1:245.61:576.27:161.68:301.66:405:39First Quarter31Sun
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 5:10 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