Tides Today & Tomorrow in Port Jefferson, NY

TIDE TIMES for Friday, June 12, 2026
The tide is currently rising in Port Jefferson, NY.
Next low tide : 3:27 pm (0.5 ft)
Next high tide : in 2h 10m at 9:26 am (6.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waning Crescent (9% illuminated)
Tide Station Location : Station #8514560
Common Questions About Tides

Port Jefferson, NY Tides - Oct 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:357.010:556.74:260.74:520.56:496:33Full Moon1Sun
2Mon11:127.111:336.75:030.65:310.46:506:32Full Moon2Mon
3Tue11:477.25:390.66:080.36:516:30Full Moon3Tue
4Wed12:106.712:217.36:140.66:440.36:526:28Full Moon4Wed
5Thu12:476.612:567.26:480.77:210.36:536:27Full Moon5Thu
6Fri1:256.51:337.17:240.88:000.46:546:25Waning Gibbous6Fri
7Sat2:056.42:127.08:031.08:410.66:556:23Waning Gibbous7Sat
8Sun2:486.22:566.98:451.19:270.76:566:22Waning Gibbous8Sun
9Mon3:356.13:446.89:331.210:180.86:586:20Third Quarter9Mon
10Tue4:266.04:396.710:281.311:160.96:596:19Third Quarter10Tue
11Wed5:236.05:396.611:301.37:006:17Third Quarter11Wed
12Thu6:246.26:446.712:170.812:361.17:016:15Third Quarter12Thu
13Fri7:256.57:486.91:170.61:400.87:026:14Waning Crescent13Fri
14Sat8:247.08:477.12:140.32:410.37:036:12Waning Crescent14Sat
15Sun9:187.69:437.33:080.03:39-0.17:046:11Waning Crescent15Sun
16Mon10:098.010:377.54:00-0.24:33-0.57:056:09New Moon16Mon
17Tue10:598.411:287.54:49-0.45:25-0.87:066:08New Moon17Tue
18Wed11:478.65:38-0.56:16-0.97:076:06New Moon18Wed
19Thu12:187.512:368.56:26-0.47:05-0.87:086:05New Moon19Thu
20Fri1:087.31:258.27:15-0.17:56-0.57:106:03Waxing Crescent20Fri
21Sat1:597.02:177.88:060.28:48-0.27:116:02Waxing Crescent21Sat
22Sun2:526.73:117.48:590.59:420.27:126:00Waxing Crescent22Sun
23Mon3:476.44:066.99:560.810:380.67:135:59First Quarter23Mon
24Tue4:446.25:056.510:561.111:360.87:145:58First Quarter24Tue
25Wed5:436.16:066.311:581.27:155:56First Quarter25Wed
26Thu6:446.17:076.112:341.01:001.27:165:55First Quarter26Thu
27Fri7:416.28:046.11:291.01:581.17:185:54Waxing Gibbous27Fri
28Sat8:326.48:566.22:180.92:500.97:195:52Waxing Gibbous28Sat
29Sun9:186.79:426.33:040.93:370.77:205:51Waxing Gibbous29Sun
30Mon9:596.910:256.43:470.84:210.47:215:50Waxing Gibbous30Mon
31Tue10:387.111:056.44:270.75:020.37:225:49Full Moon31Tue
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 12:26 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 9% 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 (9% 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