Tides Today & Tomorrow in Southold, NY

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Southold, NY.
Next low tide (tomorrow) : in 2h 33m at 1:45 am (0.7 ft)
Next high tide (tomorrow) : 7:45 am (1.9 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:05 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8512114
Common Questions About Tides

Southold, NY Tides - Mar 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:312.57:542.01:050.11:57-0.16:245:39Waning Crescent1Fri
2Sat8:232.68:452.22:04-0.12:49-0.36:235:40Waning Crescent2Sat
3Sun9:132.79:352.43:02-0.33:39-0.46:215:41New Moon3Sun
4Mon10:022.710:252.63:57-0.54:26-0.56:205:43New Moon4Mon
5Tue10:502.711:142.84:49-0.65:11-0.56:185:44New Moon5Tue
6Wed11:382.65:41-0.65:57-0.56:175:45Waxing Crescent6Wed
7Thu12:042.812:292.46:34-0.66:44-0.36:155:46Waxing Crescent7Thu
8Fri12:562.81:212.27:30-0.47:36-0.26:135:47Waxing Crescent8Fri
9Sat1:512.72:162.08:28-0.38:330.06:125:48Waxing Crescent9Sat
10Sun2:482.53:131.99:27-0.19:330.26:105:49First Quarter10Sun
11Mon3:482.34:131.810:270.110:360.36:085:50First Quarter11Mon
12Tue4:542.25:181.711:280.211:410.46:075:52First Quarter12Tue
13Wed6:052.16:231.812:280.36:055:53First Quarter13Wed
14Thu7:082.17:191.912:440.41:220.36:045:54Waxing Gibbous14Thu
15Fri7:582.18:062.01:390.32:110.36:025:55Waxing Gibbous15Fri
16Sat8:412.18:502.12:290.32:540.26:005:56Waxing Gibbous16Sat
17Sun9:212.29:312.23:130.23:320.25:595:57Waxing Gibbous17Sun
18Mon9:592.210:112.43:530.14:070.15:575:58Full Moon18Mon
19Tue10:362.210:492.44:290.04:390.15:555:59Full Moon19Tue
20Wed11:132.111:262.55:050.05:120.15:546:00Full Moon20Wed
21Thu11:502.15:420.05:450.25:526:01Full Moon21Thu
22Fri12:022.512:282.06:210.06:210.25:506:02Waning Gibbous22Fri
23Sat12:382.51:082.07:040.07:010.35:496:03Waning Gibbous23Sat
24Sun1:162.41:501.97:520.17:480.45:476:05Waning Gibbous24Sun
25Mon1:582.42:351.88:450.18:420.55:456:06Waning Gibbous25Mon
26Tue2:482.33:261.89:400.29:400.55:446:07Third Quarter26Tue
27Wed3:472.34:261.810:380.210:430.45:426:08Third Quarter27Wed
28Thu4:562.35:361.911:370.211:480.35:406:09Third Quarter28Thu
29Fri6:072.46:402.112:350.15:386:10Waning Crescent29Fri
30Sat7:082.57:352.312:510.21:290.05:376:11Waning Crescent30Sat
31Sun8:012.58:262.51:510.02:21-0.15:356:12Waning Crescent31Sun
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 4:45 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 Southold, NY?

Southold, NY is currently in a transitional phase. Tonight's moon is 65% 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 First Quarter (65% 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