Tides Today & Tomorrow in Port Jefferson, NY

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Port Jefferson, NY.
Next low tide (tomorrow) : 5:52 am (0.4 ft)
Next high tide : in 5h 55m at 11:24 pm (7.0 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:22 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8514560
Common Questions About Tides

Port Jefferson, NY Tides - May 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:476.35:285.911:170.911:371.45:507:48Third Quarter1Fri
2Sat5:436.26:246.012:140.95:487:49Third Quarter2Sat
3Sun6:446.37:226.312:391.21:100.75:477:50Third Quarter3Sun
4Mon7:456.48:166.81:400.92:040.55:467:51Waning Crescent4Mon
5Tue8:436.69:087.32:380.52:560.35:457:52Waning Crescent5Tue
6Wed9:376.99:587.83:330.03:470.15:437:53Waning Crescent6Wed
7Thu10:307.110:488.14:27-0.44:37-0.15:427:54New Moon7Thu
8Fri11:227.211:378.45:19-0.85:27-0.25:417:56New Moon8Fri
9Sat12:137.26:10-0.96:16-0.25:407:57New Moon9Sat
10Sun12:268.41:047.17:01-0.97:08-0.15:397:58New Moon10Sun
11Mon1:188.21:587.07:53-0.78:020.25:387:59Waxing Crescent11Mon
12Tue2:137.92:536.88:48-0.48:590.45:378:00Waxing Crescent12Tue
13Wed3:107.43:516.69:450.010:000.75:368:01Waxing Crescent13Wed
14Thu4:097.04:506.510:440.311:030.95:358:02First Quarter14Thu
15Fri5:116.65:516.411:430.65:348:03First Quarter15Fri
16Sat6:156.36:536.412:091.012:430.85:338:04First Quarter16Sat
17Sun7:206.17:516.61:131.01:390.85:328:04First Quarter17Sun
18Mon8:196.18:436.82:130.82:300.95:318:05Waxing Gibbous18Mon
19Tue9:126.19:306.93:070.73:170.95:308:06Waxing Gibbous19Tue
20Wed10:006.110:127.13:550.54:000.95:298:07Waxing Gibbous20Wed
21Thu10:436.210:517.14:390.34:420.95:298:08Waxing Gibbous21Thu
22Fri11:236.311:287.15:190.25:210.95:288:09Full Moon22Fri
23Sat12:026.35:560.25:591.05:278:10Full Moon23Sat
24Sun12:057.112:406.36:330.26:371.05:268:11Full Moon24Sun
25Mon12:437.01:186.37:110.27:161.15:268:12Full Moon25Mon
26Tue1:226.91:586.27:500.37:571.15:258:13Waning Gibbous26Tue
27Wed2:036.82:406.28:300.48:401.25:258:14Waning Gibbous27Wed
28Thu2:466.73:246.29:130.59:261.25:248:14Waning Gibbous28Thu
29Fri3:326.64:106.39:590.510:161.25:238:15Waning Gibbous29Fri
30Sat4:216.64:596.410:470.611:111.15:238:16Third Quarter30Sat
31Sun5:146.55:516.611:380.65:228:17Third Quarter31Sun
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 2:38 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 98% 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 Full Moon (98% 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