Tides Today & Tomorrow in Port Jefferson, NY

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Port Jefferson, NY.
Next low tide : in 3h 16m at 3:46 pm (1.2 ft)
Next high tide : 9:58 pm (6.9 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 - Apr 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:327.53:066.68:59-0.39:100.36:347:17Waning Gibbous1Sun
2Mon3:217.33:596.39:53-0.110:040.66:327:18Waning Gibbous2Mon
3Tue4:167.14:576.110:520.211:070.86:307:19Third Quarter3Tue
4Wed5:186.86:026.011:570.46:297:20Third Quarter4Wed
5Thu6:266.77:116.012:160.91:050.46:277:21Third Quarter5Thu
6Fri7:376.78:176.31:270.82:100.46:257:23Waning Crescent6Fri
7Sat8:436.89:176.72:330.53:090.26:247:24Waning Crescent7Sat
8Sun9:437.010:117.13:340.24:030.06:227:25Waning Crescent8Sun
9Mon10:367.110:597.44:30-0.24:52-0.26:217:26Waning Crescent9Mon
10Tue11:247.211:437.65:20-0.45:36-0.26:197:27New Moon10Tue
11Wed12:087.16:05-0.56:17-0.26:177:28New Moon11Wed
12Thu12:247.712:507.06:48-0.56:570.06:167:29New Moon12Thu
13Fri1:047.61:336.87:30-0.47:360.36:147:30Waxing Crescent13Fri
14Sat1:447.32:166.68:11-0.18:170.56:137:31Waxing Crescent14Sat
15Sun2:267.13:006.38:530.29:000.86:117:32Waxing Crescent15Sun
16Mon3:096.73:466.19:370.49:461.16:107:33Waxing Crescent16Mon
17Tue3:556.44:345.910:240.710:371.36:087:34First Quarter17Tue
18Wed4:456.15:265.711:161.011:321.56:077:35First Quarter18Wed
19Thu5:405.96:235.712:121.16:057:36First Quarter19Thu
20Fri6:405.87:215.812:321.51:091.16:047:37First Quarter20Fri
21Sat7:405.98:156.01:311.42:031.06:027:38Waxing Gibbous21Sat
22Sun8:356.19:046.42:261.12:530.86:017:40Waxing Gibbous22Sun
23Mon9:256.39:496.83:180.83:400.65:597:41Waxing Gibbous23Mon
24Tue10:126.610:317.24:060.44:240.45:587:42Waxing Gibbous24Tue
25Wed10:566.811:127.54:520.05:060.25:577:43Full Moon25Wed
26Thu11:406.911:547.85:36-0.35:470.15:557:44Full Moon26Thu
27Fri12:247.06:20-0.66:290.05:547:45Full Moon27Fri
28Sat12:377.91:107.07:05-0.67:140.15:537:46Full Moon28Sat
29Sun1:237.91:596.97:53-0.68:020.25:517:47Waning Gibbous29Sun
30Mon2:127.82:516.78:45-0.48:560.45:507:48Waning Gibbous30Mon
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 6:52 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