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 : 3:54 pm (0.1 ft)
Next high tide : in 1h 39m at 9:58 am (5.2 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 - Oct 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:556.89:166.72:500.63:020.77:197:11Full Moon1Mon
2Tue9:346.89:536.63:270.63:430.77:207:10Full Moon2Tue
3Wed10:116.710:286.44:020.64:220.77:217:09Full Moon3Wed
4Thu10:486.711:046.24:370.65:020.87:217:07Waning Gibbous4Thu
5Fri11:276.611:436.05:120.75:441.07:227:06Waning Gibbous5Fri
6Sat12:096.65:490.76:291.27:227:05Waning Gibbous6Sat
7Sun12:285.812:586.66:320.87:231.47:237:04Waning Gibbous7Sun
8Mon1:195.71:536.67:240.98:251.57:247:03Third Quarter8Mon
9Tue2:175.62:546.78:281.09:321.47:247:01Third Quarter9Tue
10Wed3:225.74:036.79:370.910:361.27:257:00Third Quarter10Wed
11Thu4:345.95:136.910:450.711:360.87:266:59Third Quarter11Thu
12Fri5:456.26:187.111:490.47:266:58Waning Crescent12Fri
13Sat6:496.77:157.312:320.512:500.17:276:57Waning Crescent13Sat
14Sun7:457.28:077.41:250.11:49-0.17:286:56Waning Crescent14Sun
15Mon8:377.58:567.32:16-0.12:45-0.37:286:54New Moon15Mon
16Tue9:287.79:437.13:05-0.33:38-0.37:296:53New Moon16Tue
17Wed10:187.710:306.93:52-0.34:29-0.17:306:52New Moon17Wed
18Thu11:097.511:186.54:37-0.15:180.27:306:51Waxing Crescent18Thu
19Fri11:597.35:200.26:070.57:316:50Waxing Crescent19Fri
20Sat12:066.212:487.06:040.56:570.97:326:49Waxing Crescent20Sat
21Sun12:556.01:366.76:490.97:501.27:336:48Waxing Crescent21Sun
22Mon1:445.82:236.57:391.38:451.47:336:47First Quarter22Mon
23Tue2:345.73:126.38:341.59:411.57:346:46First Quarter23Tue
24Wed3:275.74:036.29:331.610:331.47:356:45First Quarter24Wed
25Thu4:225.84:576.210:301.611:211.27:356:44First Quarter25Thu
26Fri5:196.05:506.311:241.47:366:43Waxing Gibbous26Fri
27Sat6:126.36:396.512:071.012:151.27:376:42Waxing Gibbous27Sat
28Sun6:016.56:246.612:500.812:031.06:385:41Waxing Gibbous28Sun
29Mon6:466.77:066.612:320.712:500.96:385:40Waxing Gibbous29Mon
30Tue7:286.97:456.51:130.61:360.86:395:39Full Moon30Tue
31Wed8:087.08:236.41:520.52:200.76:405:39Full Moon31Wed
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 12:56 pm — 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