Tides Today & Tomorrow in Southold, NY

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Southold, NY.
Next low tide : 9:58 pm (0.4 ft)
Next high tide : in 3h 13m at 3:23 pm (2.8 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 6:01 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8512114
Common Questions About Tides

Southold, NY Tides - Sep 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:112.81:433.07:320.08:090.16:167:22Waning Gibbous1Fri
2Sat2:002.72:353.08:220.19:060.16:177:20Waning Gibbous2Sat
3Sun2:532.63:303.09:150.210:060.26:187:19Waning Gibbous3Sun
4Mon3:502.54:282.910:130.311:060.26:197:17Third Quarter4Mon
5Tue4:502.45:312.911:130.36:207:15Third Quarter5Tue
6Wed5:562.36:392.812:080.212:160.46:217:14Third Quarter6Wed
7Thu7:052.37:442.81:090.21:200.46:227:12Waning Crescent7Thu
8Fri8:072.48:402.82:080.22:210.46:237:10Waning Crescent8Fri
9Sat9:022.59:312.83:030.23:200.36:247:09Waning Crescent9Sat
10Sun9:512.610:182.83:550.14:140.36:257:07Waning Crescent10Sun
11Mon10:382.711:032.84:440.15:040.26:267:05New Moon11Mon
12Tue11:232.811:452.75:280.15:500.26:277:04New Moon12Tue
13Wed12:062.86:080.26:320.26:287:02New Moon13Wed
14Thu12:282.612:492.86:480.37:150.36:297:00Waxing Crescent14Thu
15Fri1:112.51:332.87:270.47:590.46:306:59Waxing Crescent15Fri
16Sat1:572.42:202.88:070.58:460.56:316:57Waxing Crescent16Sat
17Sun2:462.33:082.78:510.79:350.56:326:55Waxing Crescent17Sun
18Mon3:372.23:582.69:390.810:250.66:336:53Waxing Crescent18Mon
19Tue4:292.14:512.510:280.911:160.66:346:52First Quarter19Tue
20Wed5:242.15:472.511:210.96:356:50First Quarter20Wed
21Thu6:242.16:462.512:090.612:150.96:366:48First Quarter21Thu
22Fri7:212.17:412.51:010.61:100.86:376:47First Quarter22Fri
23Sat8:122.28:292.61:500.52:020.76:386:45Waxing Gibbous23Sat
24Sun8:562.49:122.72:370.42:520.56:396:43Waxing Gibbous24Sun
25Mon9:382.69:532.83:230.33:420.46:406:41Waxing Gibbous25Mon
26Tue10:182.810:352.84:070.24:310.26:416:40Full Moon26Tue
27Wed10:592.911:172.94:510.15:190.06:426:38Full Moon27Wed
28Thu11:423.15:350.06:07-0.16:436:36Full Moon28Thu
29Fri12:012.812:273.26:190.06:57-0.16:446:35Full Moon29Fri
30Sat12:482.81:153.27:050.07:50-0.16:456:33Waning Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8512114)

Common Questions About Southold, NY Tides

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

Slack tide in Southold, NY is approximately 6:40 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 Southold, NY?

Southold, 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 Southold, 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 Southold, NY?

Tide predictions for Southold, 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 Southold, NY?

Tide data for Southold, NY is sourced from NOAA Station #8512114. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8512114.

What is the moon phase in Southold, NY tonight?

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