Tides Today & Tomorrow in Port Jefferson, NY

TIDE TIMES for Thursday, June 11, 2026
The tide is currently falling in Port Jefferson, NY.
Next low tide (tomorrow) : in 4h 36m at 3:23 am (0.0 ft)
Next high tide (tomorrow) : 9:26 am (6.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waning Crescent (17% illuminated)
Tide Station Location : Station #8514560
Common Questions About Tides

Port Jefferson, NY Tides - Mar 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:596.62:295.98:230.28:290.66:255:43Waxing Crescent1Wed
2Thu2:416.53:165.89:090.49:160.86:235:45First Quarter2Thu
3Fri3:296.44:095.610:020.510:110.96:215:46First Quarter3Fri
4Sat4:256.35:095.511:040.611:150.96:205:47First Quarter4Sat
5Sun5:296.36:155.612:100.56:185:48First Quarter5Sun
6Mon6:376.57:186.012:230.81:130.36:175:49Waxing Gibbous6Mon
7Tue7:416.88:176.41:280.42:120.06:155:50Waxing Gibbous7Tue
8Wed8:407.29:127.02:290.03:07-0.46:135:51Waxing Gibbous8Wed
9Thu9:357.510:037.53:27-0.53:58-0.86:125:52Full Moon9Thu
10Fri10:277.710:527.94:20-0.94:46-1.06:105:54Full Moon10Fri
11Sat11:177.711:398.15:12-1.25:32-1.06:095:55Full Moon11Sat
12Sun1:067.57:02-1.27:19-0.97:076:56Waning Gibbous12Sun
13Mon1:278.11:567.27:52-1.18:06-0.67:056:57Waning Gibbous13Mon
14Tue2:167.92:476.98:43-0.88:56-0.27:046:58Waning Gibbous14Tue
15Wed3:077.53:396.59:35-0.49:480.27:026:59Waning Gibbous15Wed
16Thu3:597.14:346.110:300.110:450.67:007:00Third Quarter16Thu
17Fri4:566.65:335.811:290.511:461.06:597:01Third Quarter17Fri
18Sat5:576.26:375.612:310.86:577:02Third Quarter18Sat
19Sun7:036.07:415.612:511.11:330.96:557:03Third Quarter19Sun
20Mon8:075.98:405.81:541.12:300.96:547:04Waning Crescent20Mon
21Tue9:046.19:306.12:510.93:210.86:527:05Waning Crescent21Tue
22Wed9:526.210:146.33:420.74:060.66:507:07Waning Crescent22Wed
23Thu10:356.410:536.64:280.44:460.46:497:08Waning Crescent23Thu
24Fri11:146.511:296.85:090.25:220.36:477:09New Moon24Fri
25Sat11:516.65:470.05:570.36:457:10New Moon25Sat
26Sun12:047.012:286.66:24-0.16:320.36:447:11New Moon26Sun
27Mon12:387.01:046.57:00-0.17:060.46:427:12New Moon27Mon
28Tue1:137.01:436.47:37-0.17:430.56:407:13Waxing Crescent28Tue
29Wed1:507.02:236.38:160.08:220.66:397:14Waxing Crescent29Wed
30Thu2:306.93:076.28:590.19:050.76:377:15Waxing Crescent30Thu
31Fri3:156.83:556.09:460.39:550.96:357:16Waxing Crescent31Fri
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 6:24 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 Port Jefferson, NY?

Port Jefferson, NY is currently in a spring phase. Tonight's moon is 17% 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 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 Waning Crescent (17% illuminated). This places Port Jefferson, NY 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