Tides Today & Tomorrow in Port Jefferson, NY

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Port Jefferson, NY.
Next low tide : 2:57 pm (1.2 ft)
Next high tide : in 56m at 8:59 am (5.9 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8514560
Common Questions About Tides

Port Jefferson, NY Tides - Jun 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:046.79:268.03:01-0.13:130.25:228:18Waxing Gibbous1Fri
2Sat10:026.910:218.23:58-0.44:090.05:218:18Waxing Gibbous2Sat
3Sun10:577.111:158.44:54-0.75:05-0.15:218:19Full Moon3Sun
4Mon11:517.35:47-0.85:59-0.25:218:20Full Moon4Mon
5Tue12:088.412:437.36:39-0.96:52-0.25:208:21Full Moon5Tue
6Wed1:008.21:367.37:31-0.77:47-0.15:208:21Waning Gibbous6Wed
7Thu1:547.92:307.38:23-0.58:420.15:208:22Waning Gibbous7Thu
8Fri2:497.63:247.29:15-0.39:390.35:208:22Waning Gibbous8Fri
9Sat3:437.24:177.110:070.010:360.55:198:23Third Quarter9Sat
10Sun4:386.85:116.910:590.311:340.75:198:23Third Quarter10Sun
11Mon5:346.46:066.811:520.65:198:24Third Quarter11Mon
12Tue6:326.17:016.812:330.812:450.85:198:24Third Quarter12Tue
13Wed7:306.07:546.81:290.81:371.05:198:25Waning Crescent13Wed
14Thu8:266.08:446.82:230.82:281.15:198:25Waning Crescent14Thu
15Fri9:186.09:316.93:130.63:171.15:198:26Waning Crescent15Fri
16Sat10:056.110:167.04:010.54:031.05:198:26Waning Crescent16Sat
17Sun10:496.310:577.04:450.44:480.95:198:26New Moon17Sun
18Mon11:316.411:377.15:260.35:300.85:198:27New Moon18Mon
19Tue12:106.56:060.26:110.85:208:27New Moon19Tue
20Wed12:177.112:506.66:440.16:510.75:208:27New Moon20Wed
21Thu12:567.11:296.77:230.17:320.75:208:27Waxing Crescent21Thu
22Fri1:377.12:106.88:020.18:150.75:208:28Waxing Crescent22Fri
23Sat2:197.02:536.98:430.19:010.65:218:28Waxing Crescent23Sat
24Sun3:047.03:377.09:250.29:490.65:218:28Waxing Crescent24Sun
25Mon3:516.94:247.110:100.210:410.65:218:28First Quarter25Mon
26Tue4:426.75:147.211:000.311:380.55:228:28First Quarter26Tue
27Wed5:386.56:097.311:530.45:228:28First Quarter27Wed
28Thu6:396.47:077.512:390.412:520.55:228:28First Quarter28Thu
29Fri7:416.48:077.71:400.21:510.45:238:28Waxing Gibbous29Fri
30Sat8:436.69:067.92:410.02:520.35:238:28Waxing Gibbous30Sat
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 11:58 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 84% 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 Waxing Gibbous (84% 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