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

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in St. Marys, St. Marys River, GA.
Next low tide (tomorrow) : 4:50 am (0.3 ft)
Next high tide : in 1h 58m at 10:31 pm (6.2 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:26 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8679964
Common Questions About Tides

St. Marys, St. Marys River, GA Tides - Apr 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:126.13:445.29:560.710:060.37:147:45First Quarter1Sun
2Mon4:276.15:035.311:020.611:160.17:137:45First Quarter2Mon
3Tue5:476.16:205.712:050.37:127:46Waxing Gibbous3Tue
4Wed6:566.37:256.112:22-0.11:040.07:107:47Waxing Gibbous4Wed
5Thu7:556.58:226.61:26-0.42:00-0.37:097:47Waxing Gibbous5Thu
6Fri8:466.79:136.92:25-0.72:51-0.67:087:48Full Moon6Fri
7Sat9:346.610:027.13:19-0.83:38-0.77:077:49Full Moon7Sat
8Sun10:196.510:497.14:09-0.94:21-0.77:067:49Full Moon8Sun
9Mon11:036.311:337.04:56-0.75:03-0.57:057:50Full Moon9Mon
10Tue11:456.05:41-0.55:42-0.37:037:50Waning Gibbous10Tue
11Wed12:166.712:265.86:26-0.16:220.17:027:51Waning Gibbous11Wed
12Thu12:576.51:085.67:110.37:020.47:017:52Waning Gibbous12Thu
13Fri1:386.21:515.47:590.67:470.87:007:52Third Quarter13Fri
14Sat2:205.92:385.38:510.98:381.06:597:53Third Quarter14Sat
15Sun3:085.63:315.29:451.09:371.26:587:54Third Quarter15Sun
16Mon4:035.54:305.210:391.010:381.26:577:54Third Quarter16Mon
17Tue5:055.45:325.311:320.911:361.16:557:55Third Quarter17Tue
18Wed6:065.56:305.612:210.86:547:56Waning Crescent18Wed
19Thu7:015.77:225.912:310.91:090.66:537:56Waning Crescent19Thu
20Fri7:505.88:096.11:240.61:530.46:527:57Waning Crescent20Fri
21Sat8:335.98:526.32:130.42:360.26:517:58Waning Crescent21Sat
22Sun9:145.99:326.53:000.23:160.06:507:58New Moon22Sun
23Mon9:535.910:116.63:440.03:54-0.16:497:59New Moon23Mon
24Tue10:325.810:516.74:27-0.14:33-0.26:488:00New Moon24Tue
25Wed11:135.711:346.75:10-0.15:13-0.36:478:00Waxing Crescent25Wed
26Thu11:575.65:550.05:56-0.26:468:01Waxing Crescent26Thu
27Fri12:206.712:465.56:440.16:44-0.16:458:02Waxing Crescent27Fri
28Sat1:116.61:395.57:380.37:410.16:448:02Waxing Crescent28Sat
29Sun2:076.52:395.48:390.48:460.26:438:03First Quarter29Sun
30Mon3:086.43:455.59:420.49:550.26:428:04First Quarter30Mon
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 1:40 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 100% 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 (100% 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