40.9500’ N, 73.0767’ W

Port Jefferson, NY

51°
H 59°
L 48°
WNW
11mph
High tide
10:15 am

Tides Today & Tomorrow in Port Jefferson, NY

TIDE TIMES for Sunday, November 8, 2026
The tide is currently rising in Port Jefferson, NY.
Next low tide : 4:43 pm (-0.2 ft)
Next high tide : in 4h 01m at 10:15 am (7.6 ft)
Sunset today : 4:40 pm
Sunrise tomorrow : 6:31 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8514560
Common Questions About Tides

Port Jefferson, NY Tides - Aug 1779

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:266.81:536.87:420.48:050.84:517:12Waning Gibbous1Sun
2Mon2:086.72:336.98:210.58:490.84:527:11Waning Gibbous2Mon
3Tue2:526.63:167.09:020.69:380.84:537:10Third Quarter3Tue
4Wed3:406.44:027.09:470.710:310.84:547:09Third Quarter4Wed
5Thu4:336.24:557.110:390.811:300.74:557:07Third Quarter5Thu
6Fri5:326.15:537.211:370.94:567:06Third Quarter6Fri
7Sat6:346.16:547.312:320.612:380.94:577:05Waning Crescent7Sat
8Sun7:376.37:557.51:330.31:400.74:587:04Waning Crescent8Sun
9Mon8:376.68:557.82:330.12:420.54:597:03Waning Crescent9Mon
10Tue9:346.99:528.03:31-0.23:410.25:007:01New Moon10Tue
11Wed10:287.210:478.14:25-0.44:37-0.15:017:00New Moon11Wed
12Thu11:207.511:398.15:17-0.65:32-0.25:026:59New Moon12Thu
13Fri12:117.76:06-0.66:25-0.35:036:57Waxing Crescent13Fri
14Sat12:327.91:027.76:55-0.57:19-0.25:046:56Waxing Crescent14Sat
15Sun1:247.61:537.77:44-0.28:130.05:056:55Waxing Crescent15Sun
16Mon2:167.22:447.68:330.19:070.25:066:53Waxing Crescent16Mon
17Tue3:096.83:357.49:230.510:030.55:076:52First Quarter17Tue
18Wed4:046.44:287.110:150.811:000.75:086:50First Quarter18Wed
19Thu5:026.15:246.811:111.111:590.95:096:49First Quarter19Thu
20Fri6:025.96:226.712:081.35:106:47First Quarter20Fri
21Sat7:025.97:196.612:560.91:051.45:116:46Waxing Gibbous21Sat
22Sun7:586.08:136.71:500.91:591.35:126:44Waxing Gibbous22Sun
23Mon8:486.29:016.82:400.82:501.25:136:43Waxing Gibbous23Mon
24Tue9:336.49:456.93:260.73:361.05:146:41Waxing Gibbous24Tue
25Wed10:136.610:257.04:070.54:190.85:156:40Full Moon25Wed
26Thu10:516.811:047.14:450.44:590.75:166:38Full Moon26Thu
27Fri11:286.911:417.15:220.35:380.65:176:37Full Moon27Fri
28Sat12:047.05:570.36:160.55:186:35Full Moon28Sat
29Sun12:197.012:417.16:330.36:560.55:196:34Waning Gibbous29Sun
30Mon12:596.91:197.27:090.47:370.55:206:32Waning Gibbous30Mon
31Tue1:416.81:597.37:480.58:220.55:216:30Waning Gibbous31Tue
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 0% 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 New Moon (0% 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