Port Jefferson tide times

Port Jefferson, NYPort JeffersonNOAA 8514560Tuesday, October 20 · EDTTue Oct 20Predictions onlyChange station
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Today at Port Jefferson the next high tide is at 7:38 PM (6.1 ft). Tomorrow's first low is at 1:59 AM.

Predicted now
6.1 ft ↑
Rising 0.2 ft per hour
Next high
7:38 PM
In 16 min · 6.1 ft
Next low
1:59 AM
In 6 h 37 min · 1.0 ft
Tide range today
5.0 ft
Mean range 6.6 ft
Predictions only. No live gauge at this station.

Today's tide

PredictedNightHeight above MLLW
0 ft2 ft4 ft6 ftNOW 7:221:08 AMLow · 1.2 ft7:20 AMHigh · 5.9 ft1:31 PMLow · 1.4 ft7:38 PMHigh · 6.1 ft
Tide chart for Port Jefferson, today. Low 1.2 ft at 1:08 AM, high 5.9 ft at 7:20 AM, low 1.4 ft at 1:31 PM, high 6.1 ft at 7:38 PM.

Predicted tide height at Port Jefferson for Tuesday, October 20, in feet above Mean Lower Low Water (MLLW). Shaded areas are night.

Today's tides

ft above MLLW
  • Low1:08 AM1.2 ft
  • High7:20 AM5.9 ft
  • Low1:31 PM1.4 ft
  • High7:38 PM6.1 ft
Tide times for Port Jefferson
TideTimeHeight
Low1:08 AM1.2 ft
High7:20 AM5.9 ft
Low1:31 PM1.4 ft
High7:38 PM6.1 ft
Sunrise
7:10 AM
First light 6:42
Sunset
6:06 PM
Last light 6:34
Moon
69%
Waxing gibbous
Tide range
5.0 ft
Mean 6.6 ft

Best windows today

Plan the week →
  • Fishing
    8:00 to 9:00 PM

    Today's best window (6:00 to 7:00 AM) has passed. Dawn light with the incoming tide around the 7:20 AM high. Second window 6:00 to 7:00 PM.

  • Tidepools & shelling
    Next: Wed 1:00 to 4:00 PM
    Earlier today: 1:00 to 2:00 PM

    Today's best window (1:00 to 2:00 PM) has passed.

  • Surfing
    Next: Wed 5:00 to 6:00 PM
    Earlier today: 4:00 to 5:00 PM

    Today's best window (4:00 to 5:00 PM) has passed.

  • Shallow boat launch
    Avoid 1:00 to 2:00 PM

    Under 1.5 ft around low water. Launch before 1:00 PM.

Plan the week

Moving water around the turn often fishes best. Local species and bait matter more than any chart.

Next 7 days

October calendar →
High and low tides for the next 7 days, heights in ft
DayTide 1Tide 2Tide 3Tide 4Range, ft
TodayTue 20L1:08a1.2H7:20a5.9L1:31p1.4H7:38p6.15.0
WedOct 21L1:59a1.0H8:11a6.2L2:25p1.1H8:31p6.35.3
ThuOct 22L2:47a0.7H8:58a6.6L3:15p0.7H9:20p6.55.9
FriOct 23L3:31a0.5H9:42a7.1L4:03p0.3H10:06p6.76.7
SatOct 24L4:14a0.3H10:24a7.5L4:48p−0.1H10:51p6.97.5
SunOct 25L4:57a0.1H11:06a7.8L5:33p−0.3H11:35p7.08.1 spring tide
MonOct 26L5:39a0.1H11:48a8.0L6:18p−0.58.5 spring tide

King tides Oct 26 to Oct 28. The year's highest tides at this station, from our scan of NOAA predictions. About king tides

Tide predictions and observations: NOAA National Ocean Service, Center for Operational Oceanographic Products and Services (CO-OPS), station 8514560.

Nearby stations

Currents

Port Jefferson Harbor entrance

  • Slack12:47 AM
  • Max flood4:03 AM 1.1 kn
  • Slack7:19 AM
  • Max ebb10:21 AM 0.7 kn
  • Slack1:05 PM
  • Max flood4:20 PM 1.1 kn
  • Slack7:32 PM
  • Max ebb10:40 PM 0.8 kn

Current predictions for Port Jefferson Harbor entrance, 2 mi away. Currents near inlets can be strong. Not for navigation.

Station details

Datum
Mean lower low water
Predictions
NOAA, from this station's own tide records
Live gauge
None
Coordinates
40.950° N, 73.077° W
Time zone
Eastern, UTC−4
Station ID
NOAA 8514560

About the tides at Port Jefferson

Tides here follow a regular twice-daily rhythm. The two daily highs usually differ by only 0.6 ft. With a mean range of about 6.6 ft, the shoreline here changes a lot between high and low water. That is larger than most New York stations on this site. From the average lower low to the average higher high, the difference is 7.2 ft. Looking a year ahead, predictions peak at 8.3 ft on September 30 and bottom out at −1.2 ft on January 23.

Predictions for Port Jefferson come from this station's own tide records. There is no live sensor, so the table shows forecast only. NOAA measured the tide here from 1957 to 1992 to set up these predictions. The nearest other station is Port Jefferson Harbor entrance, 2 mi away, where high tide comes about 5 min earlier. For tidal currents, see Port Jefferson Harbor entrance.

Height unitsftmAdd this tide widget to your site. It's free.Week plannerPrintable October calendar

Tide predictions and water levels from NOAA CO-OPS. For planning only, not for navigation. Real water levels can differ because of wind, air pressure and river flow. Always check conditions on site.