Port Jefferson Harbor entrance tide times

Port Jefferson Hbr. Entrance, NYPort Jefferson Hbr. EntranceNOAA 8514594Saturday, October 10 · EDTSat Oct 10Predictions onlyChange station
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Today at Port Jefferson Harbor entrance the next low tide is at 5:59 PM (−0.1 ft) and the next high tide is at 11:36 AM (7.8 ft). Tomorrow's first low is at 6:09 AM. Spring tides peak today, so expect bigger highs and lower lows.

Estimated now
7.5 ft ↑
Rising 0.8 ft per hour
Next high
11:36 AM
In 49 min · 7.8 ft
Next low
5:59 PM
In 7 h 12 min · −0.1 ft
Tide range today
7.9 ft
Spring tides Saturday
Predictions only. No live gauge at this station.

Today's tide

Estimated curve between high and low timesNightHeight above MLLW
−2 ft0 ft2 ft4 ft6 ft8 ftNOW 10:475:28 AMLow · 0.1 ft11:36 AMHigh · 7.8 ft5:59 PMLow · −0.1 ft
Tide chart for Port Jefferson Harbor entrance, today. Low 0.1 ft at 5:28 AM, high 7.8 ft at 11:36 AM, low −0.1 ft at 5:59 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
  • Low5:28 AM0.1 ft
  • High11:36 AM7.8 ft
  • Low5:59 PM−0.1 ft
Tide times for Port Jefferson Harbor entrance
TideTimeHeight
Low5:28 AM0.1 ft
High11:36 AM7.8 ft
Low5:59 PM−0.1 ft
Sunrise
6:59 AM
First light 6:31
Sunset
6:21 PM
Last light 6:49
Moon
0%
New moon
Tide range
7.9 ft
Spring tides Sat

Best windows today

Plan the week →
  • Fishing
    6:00 to 7:00 PM

    Moving water near sunset, as the tide rises toward the 12:01 AM high.

  • Tidepools & shelling
    4:00 to 7:00 PM

    A minus tide, −0.1 ft at 5:59 PM. Rare ground is uncovered, go early. The tide returns fast here, so start heading back by 6:55 PM.

  • Surfing
    Next: Sun 8:00 to 10:00 AM
    Earlier today: 8:00 to 9:00 AM

    Today's best window (8:00 to 9:00 AM) has passed.

  • Shallow boat launch
    Avoid 4:00 to 8:00 PM

    Under 1.5 ft around low water. Launch before 4:00 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
TodaySat 10L5:28a0.1H11:36a7.8L5:59p−0.17.9 spring tide
SunOct 11H12:01a7.1L6:09a0.3H12:16p7.8L6:41p0.07.8 spring tide
MonOct 12H12:43a6.9L6:48a0.5H12:56p7.6L7:22p0.17.5 spring tide
TueOct 13H1:25a6.7L7:28a0.8H1:36p7.4L8:03p0.37.0
WedOct 14H2:08a6.5L8:09a1.0H2:18p7.1L8:45p0.66.5
ThuOct 15H2:53a6.3L8:52a1.3H3:02p6.8L9:31p0.95.9
FriOct 16H3:40a6.0L9:40a1.5H3:51p6.5L10:20p1.15.4

Spring tides Saturday to Monday. Lows drop to −0.1 ft, the best shelling days this week. Spring and neap 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

  • Max ebb3:29 AM 1.2 kn
  • Slack6:11 AM
  • Max flood9:07 AM 1.9 kn
  • Slack12:12 PM
  • Max ebb3:53 PM 1.2 kn
  • Slack6:43 PM
  • Max flood9:36 PM 1.8 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 6.4 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 today, with a range of 7.9 ft. Neap tides follow on October 18, when the range shrinks to 4.4 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. 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.