Tides Today & Tomorrow in Port Jefferson, NY

TIDE TIMES for Friday, June 26, 2026
The tide is currently rising in Port Jefferson, NY.
Next low tide : 3:46 pm (1.2 ft)
Next high tide : in 3h 28m at 9:49 am (5.9 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:22 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #8514560
Common Questions About Tides

Port Jefferson, NY Tides - Nov 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:036.812:157.56:070.36:410.07:235:48Full Moon1Tue
2Wed12:426.612:527.36:440.57:190.17:245:47Full Moon2Wed
3Thu1:226.51:317.17:220.77:580.27:255:46Waning Gibbous3Thu
4Fri2:036.32:116.98:010.98:390.47:265:45Waning Gibbous4Fri
5Sat2:476.12:536.68:441.19:220.67:275:43Waning Gibbous5Sat
6Sun2:326.02:396.48:301.39:090.86:294:42Waning Gibbous6Sun
7Mon3:205.93:286.29:211.410:000.96:304:41Third Quarter7Mon
8Tue4:115.84:226.110:161.510:551.06:314:40Third Quarter8Tue
9Wed5:055.85:196.111:151.411:490.96:324:39Third Quarter9Wed
10Thu6:016.06:186.212:131.26:334:38Third Quarter10Thu
11Fri6:546.47:136.412:420.71:090.86:344:37Waning Crescent11Fri
12Sat7:446.88:066.61:320.42:020.46:364:36Waning Crescent12Sat
13Sun8:317.38:566.92:200.22:52-0.16:374:35Waning Crescent13Sun
14Mon9:177.79:457.13:07-0.13:42-0.56:384:34New Moon14Mon
15Tue10:038.110:337.23:53-0.34:31-0.86:394:34New Moon15Tue
16Wed10:508.311:227.24:40-0.45:19-1.06:404:33New Moon16Wed
17Thu11:388.35:28-0.46:09-1.06:424:32New Moon17Thu
18Fri12:137.112:298.26:18-0.27:02-0.86:434:31Waxing Crescent18Fri
19Sat1:066.91:247.97:120.07:58-0.56:444:30Waxing Crescent19Sat
20Sun2:036.72:227.58:110.28:56-0.26:454:30Waxing Crescent20Sun
21Mon3:026.53:237.19:140.49:570.06:464:29First Quarter21Mon
22Tue4:046.44:276.810:200.610:590.26:474:29First Quarter22Tue
23Wed5:086.45:336.511:280.66:484:28First Quarter23Wed
24Thu6:126.56:386.412:000.312:330.56:504:27First Quarter24Thu
25Fri7:116.77:376.312:570.31:330.46:514:27Waxing Gibbous25Fri
26Sat8:046.98:306.31:490.32:280.26:524:26Waxing Gibbous26Sat
27Sun8:517.19:186.42:370.33:170.06:534:26Waxing Gibbous27Sun
28Mon9:337.210:016.43:220.34:00-0.16:544:26Full Moon28Mon
29Tue10:137.210:416.44:030.44:40-0.16:554:25Full Moon29Tue
30Wed10:507.111:206.34:420.45:18-0.16:564:25Full Moon30Wed
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 12:47 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 spring phase. Tonight's moon is 90% 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 (90% 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