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

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide : 2:52 pm (-0.8 ft)
Next high tide : in 5h 41m at 8:49 am (5.5 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:32 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Apr 1981

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:126.06:306.012:210.26:146:45Waning Crescent1Wed
2Thu7:066.37:246.412:35-0.11:13-0.26:136:45Waning Crescent2Thu
3Fri7:566.58:146.81:32-0.52:03-0.66:126:46New Moon3Fri
4Sat8:456.69:057.12:26-0.82:51-0.96:116:47New Moon4Sat
5Sun9:346.69:577.33:18-1.03:37-1.06:096:47New Moon5Sun
6Mon10:246.510:497.34:09-1.04:24-1.06:086:48Waxing Crescent6Mon
7Tue11:156.311:427.25:00-0.85:12-0.86:076:48Waxing Crescent7Tue
8Wed12:076.15:53-0.56:02-0.56:066:49Waxing Crescent8Wed
9Thu12:356.91:005.86:49-0.16:58-0.16:056:50Waxing Crescent9Thu
10Fri1:296.61:565.67:500.27:590.26:046:50First Quarter10Fri
11Sat2:276.32:565.58:520.49:030.46:026:51First Quarter11Sat
12Sun3:286.14:005.49:520.510:050.56:016:52First Quarter12Sun
13Mon4:315.95:025.610:480.511:040.56:006:52Waxing Gibbous13Mon
14Tue5:295.95:585.911:390.45:596:53Waxing Gibbous14Tue
15Wed6:195.96:476.112:000.412:270.35:586:54Waxing Gibbous15Wed
16Thu7:036.07:306.412:510.21:120.15:576:54Waxing Gibbous16Thu
17Fri7:436.08:116.51:380.11:520.05:566:55Full Moon17Fri
18Sat8:226.18:506.62:220.02:300.05:546:56Full Moon18Sat
19Sun9:006.09:286.53:020.03:050.05:536:56Full Moon19Sun
20Mon9:385.910:056.43:410.03:380.15:526:57Full Moon20Mon
21Tue10:175.810:406.34:180.14:100.15:516:57Waning Gibbous21Tue
22Wed10:555.711:156.24:550.34:430.35:506:58Waning Gibbous22Wed
23Thu11:355.511:506.15:330.55:170.45:496:59Waning Gibbous23Thu
24Fri12:155.46:140.75:570.55:486:59Waning Gibbous24Fri
25Sat12:296.012:595.37:020.86:470.65:477:00Third Quarter25Sat
26Sun1:145.92:495.38:570.98:480.76:468:01Third Quarter26Sun
27Mon3:075.83:465.39:560.89:560.76:458:01Third Quarter27Mon
28Tue4:115.74:525.510:550.611:040.56:448:02Third Quarter28Tue
29Wed5:235.85:595.911:510.36:438:03Waning Crescent29Wed
30Thu6:316.07:026.312:090.312:470.06:428:03Waning Crescent30Thu
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 11:50 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 1% 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 New Moon (1% 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