Tides Today & Tomorrow in Great River, NY

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Great River, NY.
Next low tide : in 4h 52m at 9:17 am (0.0 ft)
Next high tide : 3:28 pm (0.8 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8514783
Common Questions About Tides

Great River, NY Tides - Apr 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:590.75:350.611:460.111:580.16:357:17Third Quarter1Thu
2Fri5:590.76:360.612:560.16:337:18Third Quarter2Fri
3Sat7:000.77:400.61:120.11:590.16:327:19Waning Crescent3Sat
4Sun8:030.78:410.62:160.12:510.16:307:20Waning Crescent4Sun
5Mon9:020.79:330.73:100.13:360.06:287:21Waning Crescent5Mon
6Tue9:510.710:160.73:570.14:170.06:277:22Waning Crescent6Tue
7Wed10:330.710:540.74:410.04:550.06:257:23New Moon7Wed
8Thu11:110.711:290.85:230.05:320.06:247:24New Moon8Thu
9Fri11:480.76:040.06:080.06:227:25New Moon9Fri
10Sat12:020.812:240.76:440.06:420.06:207:26New Moon10Sat
11Sun12:330.81:000.77:210.07:160.06:197:27New Moon11Sun
12Mon1:030.81:360.67:570.07:470.16:177:28Waxing Crescent12Mon
13Tue1:330.72:140.68:310.18:180.16:167:29Waxing Crescent13Tue
14Wed2:050.72:560.69:070.18:500.16:147:30Waxing Crescent14Wed
15Thu2:450.73:470.69:480.19:280.16:137:32Waxing Crescent15Thu
16Fri3:370.74:420.610:410.110:220.26:117:33First Quarter16Fri
17Sat4:380.75:380.611:520.111:420.26:107:34First Quarter17Sat
18Sun5:400.76:370.61:000.16:087:35First Quarter18Sun
19Mon6:450.77:390.71:050.12:000.16:077:36Waxing Gibbous19Mon
20Tue7:530.78:410.72:130.12:520.06:057:37Waxing Gibbous20Tue
21Wed8:580.79:360.83:130.03:410.06:047:38Waxing Gibbous21Wed
22Thu9:550.810:270.94:090.04:29-0.16:027:39Waxing Gibbous22Thu
23Fri10:470.811:150.95:03-0.15:18-0.16:017:40Full Moon23Fri
24Sat11:380.85:58-0.16:08-0.15:597:41Full Moon24Sat
25Sun12:031.012:290.86:50-0.16:58-0.15:587:42Full Moon25Sun
26Mon12:520.91:220.87:41-0.17:47-0.15:577:43Waning Gibbous26Mon
27Tue1:450.92:180.78:32-0.18:360.05:557:44Waning Gibbous27Tue
28Wed2:400.93:190.79:230.09:280.15:547:45Waning Gibbous28Wed
29Thu3:390.84:200.710:190.010:270.15:537:46Third Quarter29Thu
30Fri4:390.75:190.611:210.111:360.25:517:47Third Quarter30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8514783)

Common Questions About Great River, NY Tides

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What time does the tide turn (slack tide) in Great River, NY today?

Slack tide in Great River, NY is approximately 12:22 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 Great River, NY?

Great River, NY is currently in a transitional phase. Tonight's moon is 27% 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 Great River, NY 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 Great River, NY?

Tide predictions for Great River, NY 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 Great River, NY?

Tide data for Great River, NY is sourced from NOAA Station #8514783. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8514783.

What is the moon phase in Great River, NY tonight?

Tonight the moon over Great River, NY is Waxing Crescent (27% illuminated). This places Great River, NY 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