40.9500’ N, 73.0767’ W

Port Jefferson, NY

70°
H 71°
L 62°
SSW
14mph
High tide
8:28 pm

Tides Today & Tomorrow in Port Jefferson, NY

TIDE TIMES for Thursday, November 5, 2026
The tide is currently rising in Port Jefferson, NY.
Next low tide (tomorrow) : 2:38 am (0.3 ft)
Next high tide : in 5h 51m at 8:28 pm (6.6 ft)
Sunset today : 4:43 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8514560
Common Questions About Tides

Port Jefferson, NY Tides - Oct 1784

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:187.312:358.16:25-0.17:05-0.35:535:37Waning Gibbous1Fri
2Sat1:077.01:247.87:120.37:550.05:545:35Waning Gibbous2Sat
3Sun1:586.72:147.48:020.78:480.45:555:34Waning Gibbous3Sun
4Mon2:516.33:076.98:551.09:420.85:565:32Third Quarter4Mon
5Tue3:466.14:046.59:521.310:401.15:575:30Third Quarter5Tue
6Wed4:455.95:056.210:531.511:401.25:585:29Third Quarter6Wed
7Thu5:465.96:076.111:551.56:005:27Third Quarter7Thu
8Fri6:456.07:066.212:361.212:541.46:015:26Waning Crescent8Fri
9Sat7:386.27:586.31:281.11:471.26:025:24Waning Crescent9Sat
10Sun8:246.58:446.42:140.92:350.96:035:22Waning Crescent10Sun
11Mon9:056.89:256.62:560.83:200.66:045:21Waning Crescent11Mon
12Tue9:437.110:056.63:350.64:010.46:055:19New Moon12Tue
13Wed10:197.310:436.74:120.64:400.26:065:18New Moon13Wed
14Thu10:557.411:206.64:470.55:180.16:075:16New Moon14Thu
15Fri11:317.411:596.55:230.65:560.16:085:15New Moon15Fri
16Sat12:097.46:000.76:360.16:095:13Waxing Crescent16Sat
17Sun12:416.412:507.36:400.87:200.36:105:12Waxing Crescent17Sun
18Mon1:266.31:377.27:240.98:090.46:125:10Waxing Crescent18Mon
19Tue2:156.22:297.08:151.19:030.66:135:09Waxing Crescent19Tue
20Wed3:106.13:266.99:141.210:030.76:145:07First Quarter20Wed
21Thu4:096.14:296.710:201.211:070.76:155:06First Quarter21Thu
22Fri5:136.25:376.711:291.06:165:04First Quarter22Fri
23Sat6:186.56:436.812:090.512:360.76:175:03Waxing Gibbous23Sat
24Sun7:187.07:447.01:080.31:390.36:185:02Waxing Gibbous24Sun
25Mon8:147.48:407.12:020.12:37-0.16:205:00Waxing Gibbous25Mon
26Tue9:057.99:337.22:53-0.13:31-0.46:214:59Waxing Gibbous26Tue
27Wed9:538.110:227.23:42-0.24:21-0.66:224:58Full Moon27Wed
28Thu10:398.211:097.14:29-0.25:09-0.76:234:56Full Moon28Thu
29Fri11:248.111:566.95:14-0.15:55-0.56:244:55Full Moon29Fri
30Sat12:097.85:590.16:41-0.36:254:54Waning Gibbous30Sat
31Sun12:436.712:567.46:450.47:280.16:274:52Waning Gibbous31Sun
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 13% 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 (13% 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