Tides Today & Tomorrow in Port Jefferson, NY

TIDE TIMES for Friday, June 12, 2026
The tide is currently rising in Port Jefferson, NY.
Next low tide : 3:27 pm (0.5 ft)
Next high tide : in 5h 40m at 9:26 am (6.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waning Crescent (9% illuminated)
Tide Station Location : Station #8514560
Common Questions About Tides

Port Jefferson, NY Tides - May 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:326.66:146.212:060.65:497:49Third Quarter1Wed
2Thu6:376.67:176.512:311.01:070.55:487:50Third Quarter2Thu
3Fri7:426.78:167.01:360.72:050.35:467:51Waning Crescent3Fri
4Sat8:436.99:117.52:380.32:590.15:457:52Waning Crescent4Sat
5Sun9:407.010:037.93:36-0.23:52-0.15:447:53Waning Crescent5Sun
6Mon10:347.210:538.24:31-0.54:42-0.25:437:54New Moon6Mon
7Tue11:257.211:418.35:23-0.85:31-0.25:427:55New Moon7Tue
8Wed12:157.26:13-0.86:19-0.15:407:56New Moon8Wed
9Thu12:288.21:047.07:01-0.77:070.15:397:57New Moon9Thu
10Fri1:167.91:546.87:49-0.47:560.45:387:58Waxing Crescent10Fri
11Sat2:067.52:446.68:39-0.18:480.75:377:59Waxing Crescent11Sat
12Sun2:587.13:366.49:290.39:421.05:368:00Waxing Crescent12Sun
13Mon3:506.74:296.210:220.610:381.25:358:01First Quarter13Mon
14Tue4:456.35:246.111:150.911:371.35:348:02First Quarter14Tue
15Wed5:436.06:206.112:101.15:338:03First Quarter15Wed
16Thu6:425.97:166.212:371.41:041.25:328:04First Quarter16Thu
17Fri7:415.88:086.31:341.31:541.25:318:05Waxing Gibbous17Fri
18Sat8:345.88:566.62:281.12:411.15:318:06Waxing Gibbous18Sat
19Sun9:245.99:396.83:170.83:261.15:308:07Waxing Gibbous19Sun
20Mon10:096.110:207.04:030.64:091.05:298:08Waxing Gibbous20Mon
21Tue10:526.210:597.14:470.34:511.05:288:09Full Moon21Tue
22Wed11:336.311:377.25:280.25:310.95:278:10Full Moon22Wed
23Thu12:136.36:080.16:110.95:278:11Full Moon23Thu
24Fri12:177.212:546.36:480.06:520.95:268:11Full Moon24Fri
25Sat12:587.21:366.47:300.07:350.95:258:12Waning Gibbous25Sat
26Sun1:437.22:226.48:140.18:230.95:258:13Waning Gibbous26Sun
27Mon2:317.23:116.49:020.29:150.95:248:14Waning Gibbous27Mon
28Tue3:237.14:026.59:530.210:110.95:248:15Waning Gibbous28Tue
29Wed4:176.94:566.610:470.311:120.85:238:16Third Quarter29Wed
30Thu5:156.85:546.811:430.35:238:16Third Quarter30Thu
31Fri6:176.76:537.112:150.712:400.35:228:17Third Quarter31Fri
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 12:26 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 9% 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 (9% 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