Port Jefferson Harbor entrance tide times

Port Jefferson Hbr. Entrance, NYPort Jefferson Hbr. EntranceNOAA 8514594Tuesday, October 20 · EDTTue Oct 20Predictions onlyChange station
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Today at Port Jefferson Harbor entrance the next high tide is at 7:35 PM (6.2 ft). Tomorrow's first low is at 1:54 AM.

Estimated now
6.2 ft ↑
Rising 0.1 ft per hour
Next high
7:35 PM
In 13 min · 6.2 ft
Next low
1:54 AM
In 6 h 32 min · 1.1 ft
Tide range today
5.0 ft
Neap tides Tuesday
Predictions only. No live gauge at this station.

Today's tide

Estimated curve between high and low timesNightHeight above MLLW
0 ft2 ft4 ft6 ftNOW 7:221:03 AMLow · 1.2 ft7:16 AMHigh · 6.0 ft1:26 PMLow · 1.4 ft7:35 PMHigh · 6.2 ft
Tide chart for Port Jefferson Harbor entrance, today. Low 1.2 ft at 1:03 AM, high 6.0 ft at 7:16 AM, low 1.4 ft at 1:26 PM, high 6.2 ft at 7:35 PM.

Heights and times are estimated from Bridgeport, Bridgeport Harbor using NOAA offsets. Only the high and low points are official; the curve between them is drawn by us.

Today's tides

ft above MLLW
  • Low1:03 AM1.2 ft
  • High7:16 AM6.0 ft
  • Low1:26 PM1.4 ft
  • High7:35 PM6.2 ft
Tide times for Port Jefferson Harbor entrance
TideTimeHeight
Low1:03 AM1.2 ft
High7:16 AM6.0 ft
Low1:26 PM1.4 ft
High7:35 PM6.2 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 6.3 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 7:16 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 20L1:03a1.2H7:16a6.0L1:26p1.4H7:35p6.25.0
WedOct 21L1:54a1.1H8:07a6.3L2:20p1.1H8:28p6.45.4
ThuOct 22L2:41a0.8H8:54a6.7L3:09p0.7H9:16p6.66.0
FriOct 23L3:25a0.6H9:37a7.1L3:56p0.3H10:01p6.96.8
SatOct 24L4:07a0.4H10:18a7.5L4:41p0.0H10:44p7.07.6
SunOct 25L4:49a0.2H10:58a7.8L5:26p−0.3H11:28p7.18.1 spring tide
MonOct 26L5:32a0.1H11:40a8.1L6:11p−0.48.5 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 8514594.

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, 0.1 mi away. Currents near inlets can be strong. Not for navigation.

Station details

Datum
Mean lower low water
Predictions
NOAA subordinate, from Bridgeport, Bridgeport Harbor
Live gauge
None
Coordinates
40.972° N, 73.092° W
Time zone
Eastern, UTC−4
Station ID
NOAA 8514594

About the tides at Port Jefferson Harbor entrance

Port Jefferson Harbor entrance has a semidiurnal tide: two highs and two lows of similar height each day, about 12 hours and 25 minutes apart. The pattern follows the reference station at Bridgeport, Bridgeport Harbor. The range is large, about 6.3 ft on average. Flats and bars appear and vanish quickly, so keep an eye on the time. That is larger than most New York stations on this site. The next spring tides peak on October 27, with a range of 8.6 ft. Neap tides follow today, when the range shrinks to 5.0 ft. In the next 12 months the highest predicted tide here is 8.3 ft on September 30, and the lowest is −1.1 ft on January 23.

Port Jefferson Harbor entrance is a subordinate station. NOAA predicts its tides by adjusting Bridgeport, Bridgeport Harbor: highs come about 2 min and lows about 1 min later than there. The nearest other station is Port Jefferson, 2 mi away, where high tide comes about 6 min later. For tidal currents, see Port Jefferson Harbor entrance.

Predictions are based on Bridgeport, Bridgeport Harbor.

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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.