Mount Sinai Harbor tide times

Mount Sinai Harbor, NYMount Sinai HarborNOAA 8514421Tuesday, October 20 · EDTTue Oct 20Predictions onlyChange station
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Today at Mount Sinai Harbor the next high tide is at 7:37 PM (5.7 ft). Tomorrow's first low is at 2:11 AM.

Estimated now
5.6 ft ↑
Rising 0.2 ft per hour
Next high
7:37 PM
In 15 min · 5.7 ft
Next low
2:11 AM
In 6 h 49 min · 1.0 ft
Tide range today
4.6 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 7:221:20 AMLow · 1.1 ft7:18 AMHigh · 5.5 ft1:43 PMLow · 1.3 ft7:37 PMHigh · 5.7 ft
Tide chart for Mount Sinai Harbor, today. Low 1.1 ft at 1:20 AM, high 5.5 ft at 7:18 AM, low 1.3 ft at 1:43 PM, high 5.7 ft at 7:37 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
  • Low1:20 AM1.1 ft
  • High7:18 AM5.5 ft
  • Low1:43 PM1.3 ft
  • High7:37 PM5.7 ft
Tide times for Mount Sinai Harbor
TideTimeHeight
Low1:20 AM1.1 ft
High7:18 AM5.5 ft
Low1:43 PM1.3 ft
High7:37 PM5.7 ft
Sunrise
7:10 AM
First light 6:42
Sunset
6:06 PM
Last light 6:34
Moon
69%
Waxing gibbous
Tide range
4.6 ft
Mean 5.7 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 7:18 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 3:00 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 20L1:20a1.1H7:18a5.5L1:43p1.3H7:37p5.74.6
WedOct 21L2:11a1.0H8:09a5.8L2:37p1.0H8:30p5.84.9
ThuOct 22L2:58a0.7H8:56a6.1L3:26p0.6H9:18p6.05.5
FriOct 23L3:42a0.5H9:39a6.5L4:13p0.3H10:03p6.26.2
SatOct 24L4:24a0.3H10:20a6.8L4:58p0.0H10:46p6.46.9
SunOct 25L5:06a0.2H11:00a7.1L5:43p−0.3H11:30p6.47.4 spring tide
MonOct 26L5:49a0.1H11:42a7.3L6:28p−0.47.7 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 8514421.

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, 3 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
40.963° N, 73.040° W
Time zone
Eastern, UTC−4
Station ID
NOAA 8514421

About the tides at Mount Sinai Harbor

Expect two roughly equal high tides a day at Mount Sinai Harbor, each arriving about 50 minutes later than the day before. The pattern follows the reference station at Bridgeport, Bridgeport Harbor. With a mean range of about 5.7 ft, the shoreline here changes a lot between high and low water. That is larger than most New York stations on this site. Over the next two weeks the biggest daily range, 7.8 ft, comes on October 27, and the smallest, 4.6 ft, today. Looking a year ahead, predictions peak at 7.5 ft on September 30 and bottom out at −1.0 ft on January 23.

Tides here are worked out from the reference station at Bridgeport, Bridgeport Harbor, with NOAA time and height corrections. Times are good for planning, but local wind can shift them. The nearest other station is Cedar Beach, 0.2 mi away. For tidal currents, see Port Jefferson Harbor entrance.

Predictions are based on Bridgeport, Bridgeport Harbor.

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.