40.9500’ N, 73.0767’ W

Port Jefferson, NY

64°
H 79°
L 63°
SW
2mph
High tide
9:33 am

Tides Today & Tomorrow in Port Jefferson, NY

TIDE TIMES for Monday, August 24, 2026
The tide is currently rising in Port Jefferson, NY.
Next low tide : 3:35 pm (1.3 ft)
Next high tide : in 3h 23m at 9:33 am (6.0 ft)
Sunset today : 7:37 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waxing Gibbous (88% illuminated)
Tide Station Location : Station #8514560
Common Questions About Tides

Port Jefferson, NY Tides - Aug 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:356.45:006.910:490.811:260.95:498:07First Quarter1Thu
2Fri5:276.15:516.711:391.05:508:06First Quarter2Fri
3Sat6:225.96:456.612:201.012:321.25:518:05First Quarter3Sat
4Sun7:205.97:406.61:151.01:271.35:528:04Waxing Gibbous4Sun
5Mon8:165.98:336.62:091.02:201.35:538:03Waxing Gibbous5Mon
6Tue9:086.19:236.83:000.83:121.15:548:01Waxing Gibbous6Tue
7Wed9:566.310:107.03:490.64:011.05:558:00Waxing Gibbous7Wed
8Thu10:416.510:547.14:340.44:470.75:567:59Full Moon8Thu
9Fri11:226.811:357.35:170.25:310.55:577:58Full Moon9Fri
10Sat12:027.05:570.06:130.35:587:56Full Moon10Sat
11Sun12:177.412:437.26:37-0.16:550.25:597:55Full Moon11Sun
12Mon12:587.41:247.47:17-0.17:390.16:007:54Waning Gibbous12Mon
13Tue1:427.42:077.57:58-0.18:250.16:017:52Waning Gibbous13Tue
14Wed2:287.32:537.68:42-0.19:140.16:027:51Waning Gibbous14Wed
15Thu3:187.23:427.69:300.110:080.26:037:50Waning Gibbous15Thu
16Fri4:107.04:347.610:210.211:050.36:047:48Third Quarter16Fri
17Sat5:066.75:317.511:180.46:057:47Third Quarter17Sat
18Sun6:076.66:337.412:070.312:200.66:067:45Third Quarter18Sun
19Mon7:126.57:377.41:110.31:240.66:077:44Waning Crescent19Mon
20Tue8:166.78:407.52:140.22:280.56:087:42Waning Crescent20Tue
21Wed9:176.99:397.63:130.13:280.36:097:41Waning Crescent21Wed
22Thu10:137.210:347.74:10-0.14:250.16:107:39Waning Crescent22Thu
23Fri11:057.411:257.85:01-0.35:18-0.16:117:38New Moon23Fri
24Sat11:527.65:48-0.36:07-0.16:127:36New Moon24Sat
25Sun12:127.712:377.76:33-0.36:53-0.16:137:35New Moon25Sun
26Mon12:577.51:217.67:15-0.17:380.06:147:33Waxing Crescent26Mon
27Tue1:427.32:057.57:570.18:230.26:157:32Waxing Crescent27Tue
28Wed2:277.02:497.38:390.49:090.46:167:30Waxing Crescent28Wed
29Thu3:126.73:337.19:230.79:550.76:177:28Waxing Crescent29Thu
30Fri3:596.44:196.910:081.010:440.96:187:27First Quarter30Fri
31Sat4:486.25:086.610:571.211:361.16:197:25First Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8514560)

Common Questions About Port Jefferson, NY Tides

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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 88% 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 (88% 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