Tides Today & Tomorrow in Port Jefferson, NY

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Port Jefferson, NY.
Next low tide : in 3h 31m at 10:34 am (0.2 ft)
Next high tide : 4:44 pm (7.1 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:20 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8514560
Common Questions About Tides

Port Jefferson, NY Tides - Feb 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:036.52:226.28:170.28:320.27:025:08Waning Gibbous1Sun
2Mon2:446.53:066.09:020.39:160.37:015:10Third Quarter2Mon
3Tue3:296.43:565.89:520.410:060.57:005:11Third Quarter3Tue
4Wed4:206.44:525.710:490.411:030.66:595:12Third Quarter4Wed
5Thu5:176.45:545.711:510.36:585:13Third Quarter5Thu
6Fri6:196.66:575.812:050.512:530.16:575:15Waning Crescent6Fri
7Sat7:216.87:586.21:080.31:53-0.26:565:16Waning Crescent7Sat
8Sun8:217.28:556.62:090.02:51-0.56:555:17Waning Crescent8Sun
9Mon9:177.59:497.03:07-0.43:45-0.96:545:18New Moon9Mon
10Tue10:117.810:407.44:03-0.84:36-1.26:525:20New Moon10Tue
11Wed11:037.911:307.74:56-1.15:25-1.36:515:21New Moon11Wed
12Thu11:537.95:48-1.26:14-1.36:505:22New Moon12Thu
13Fri12:207.812:447.76:39-1.27:02-1.26:495:23Waxing Crescent13Fri
14Sat1:117.71:367.37:32-1.07:52-0.86:475:24Waxing Crescent14Sat
15Sun2:027.52:296.98:26-0.78:43-0.56:465:26Waxing Crescent15Sun
16Mon2:547.23:236.59:21-0.39:370.06:455:27First Quarter16Mon
17Tue3:486.94:206.110:190.010:330.36:435:28First Quarter17Tue
18Wed4:466.55:215.811:200.311:340.66:425:29First Quarter18Wed
19Thu5:486.26:245.612:210.56:415:30First Quarter19Thu
20Fri6:506.17:245.712:340.71:200.56:395:32Waxing Gibbous20Fri
21Sat7:486.28:195.91:320.72:140.46:385:33Waxing Gibbous21Sat
22Sun8:406.39:076.12:250.63:020.36:365:34Waxing Gibbous22Sun
23Mon9:256.49:496.33:140.43:450.16:355:35Waxing Gibbous23Mon
24Tue10:066.610:286.53:570.24:240.06:345:36Full Moon24Tue
25Wed10:446.711:046.74:370.05:00-0.16:325:38Full Moon25Wed
26Thu11:216.711:406.85:16-0.15:35-0.16:315:39Full Moon26Thu
27Fri11:576.75:53-0.26:10-0.16:295:40Full Moon27Fri
28Sat12:166.812:356.66:30-0.26:450.06:285:41Waning Gibbous28Sat
29Sun12:526.91:146.57:09-0.17:220.16:265:42Waning Gibbous29Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8514560)

Common Questions About Port Jefferson, NY Tides

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

Slack tide in Port Jefferson, NY is approximately 1:39 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 Port Jefferson, NY?

Port Jefferson, NY is currently in a transitional phase. Tonight's moon is 37% 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 Port Jefferson, 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 Port Jefferson, NY?

Tide predictions for Port Jefferson, 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 Port Jefferson, NY?

Tide data for Port Jefferson, NY is sourced from NOAA Station #8514560. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8514560.

What is the moon phase in Port Jefferson, NY tonight?

Tonight the moon over Port Jefferson, NY is First Quarter (37% illuminated). This places Port Jefferson, 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