Tides Today & Tomorrow in Port Jefferson, NY

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Port Jefferson, NY.
Next low tide : in 53m at 2:57 pm (1.2 ft)
Next high tide : 9:12 pm (6.9 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8514560
Common Questions About Tides

Port Jefferson, NY Tides - Jan 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:446.25:115.511:110.711:220.77:164:34First Quarter1Sun
2Mon5:386.16:095.412:070.77:174:35First Quarter2Mon
3Tue6:326.17:055.412:160.81:020.67:174:36Waxing Gibbous3Tue
4Wed7:246.27:585.51:080.81:530.57:174:37Waxing Gibbous4Wed
5Thu8:146.48:475.71:590.72:420.37:174:38Waxing Gibbous5Thu
6Fri9:006.59:325.92:470.63:280.07:174:38Waxing Gibbous6Fri
7Sat9:446.710:146.13:330.44:11-0.27:164:39Full Moon7Sat
8Sun10:256.910:556.34:170.24:52-0.47:164:40Full Moon8Sun
9Mon11:067.011:356.54:590.05:32-0.57:164:41Full Moon9Mon
10Tue11:477.15:41-0.16:12-0.67:164:42Full Moon10Tue
11Wed12:176.712:307.16:24-0.26:53-0.67:164:43Waning Gibbous11Wed
12Thu1:006.81:167.07:10-0.37:37-0.67:154:45Waning Gibbous12Thu
13Fri1:466.92:046.87:59-0.38:23-0.57:154:46Waning Gibbous13Fri
14Sat2:347.02:556.68:52-0.29:13-0.37:154:47Third Quarter14Sat
15Sun3:257.03:506.39:49-0.110:07-0.17:144:48Third Quarter15Sun
16Mon4:216.94:516.010:510.011:070.17:144:49Third Quarter16Mon
17Tue5:216.95:565.911:560.07:144:50Third Quarter17Tue
18Wed6:256.97:025.912:100.11:00-0.17:134:51Waning Crescent18Wed
19Thu7:287.08:056.11:140.12:02-0.37:124:52Waning Crescent19Thu
20Fri8:287.29:036.32:150.03:01-0.57:124:54Waning Crescent20Fri
21Sat9:247.39:566.63:13-0.23:54-0.67:114:55New Moon21Sat
22Sun10:167.410:456.84:07-0.44:43-0.77:114:56New Moon22Sun
23Mon11:047.311:316.94:57-0.55:28-0.87:104:57New Moon23Mon
24Tue11:497.25:43-0.56:10-0.77:094:58New Moon24Tue
25Wed12:156.912:337.06:28-0.46:52-0.57:095:00Waxing Crescent25Wed
26Thu12:596.81:176.77:13-0.27:33-0.37:085:01Waxing Crescent26Thu
27Fri1:426.72:026.47:580.08:140.07:075:02Waxing Crescent27Fri
28Sat2:256.52:476.18:440.28:570.37:065:03Waxing Crescent28Sat
29Sun3:106.33:355.89:320.49:430.67:055:04First Quarter29Sun
30Mon3:576.14:265.510:230.610:340.87:045:06First Quarter30Mon
31Tue4:476.05:215.311:180.711:280.97:035:07First Quarter31Tue
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 6:04 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 84% 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 (84% 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