Mount Sinai Harbor, NY Tide Chart & Tide Times

NOAA tide station 8514421 · New York · updated Oct 24, 2026

Sat, Oct 24: High tide 10:20 AM (6.8 ft) and 10:46 PM (6.4 ft); low tide 4:24 AM (0.3 ft) and 4:58 PM (-0.0 ft).

Tide todayHigh 10:20 AM · High 10:46 PMLow 4:24 AM · Low 4:58 PM
Today's range6.9 ft-0.0 → 6.8 ft (MLLW)
Waves (buoy)Loading…NDBC 44025
Water temp (buoy)Loading… 
WindLoading…   
Sun7:13 AM – 5:58 PMFirst light 6:45 AM · Last light 6:26 PM

Buoy: NOAA NDBC 44025 (LONG ISLAND - 30 NM South of Islip, NY), 49 mi away. Buoy readings are recent observations, not a surf forecast. Wind: observed at NOAA CO-OPS station 8467150 (Bridgeport), 16 mi away; forecast from the NOAA National Weather Service (api.weather.gov).

Mount Sinai Harbor tides — next 3 days

Shaded = night · heights in feet above MLLW · local time

YesterdayFri, Oct 23
6 AMNoon6 PM3:42a · 0.5′9:39a · 6.5′4:13p · 0.3′10:03p · 6.2′
  • Low 3:42 AM 0.5 ft
  • High 9:39 AM 6.5 ft
  • Low 4:13 PM 0.3 ft
  • High 10:03 PM 6.2 ft

First light 6:44 AMSunrise 7:12 AMSunset 5:59 PMLast light 6:28 PM

TodaySat, Oct 24
6 AMNoon6 PM4:24a · 0.3′10:20a · 6.8′4:58p · -0.0′10:46p · 6.4′
  • Low 4:24 AM 0.3 ft
  • High 10:20 AM 6.8 ft
  • Low 4:58 PM -0.0 ft
  • High 10:46 PM 6.4 ft

First light 6:45 AMSunrise 7:13 AMSunset 5:58 PMLast light 6:26 PM

TomorrowSun, Oct 25
6 AMNoon6 PM5:06a · 0.2′11a · 7.1′5:43p · -0.3′11:30p · 6.4′
  • Low 5:06 AM 0.2 ft
  • High 11:00 AM 7.1 ft
  • Low 5:43 PM -0.3 ft
  • High 11:30 PM 6.4 ft

First light 6:46 AMSunrise 7:15 AMSunset 5:56 PMLast light 6:25 PM

MondayMon, Oct 26
6 AMNoon6 PM5:49a · 0.1′11:42a · 7.3′6:28p · -0.4′
  • Low 5:49 AM 0.1 ft
  • High 11:42 AM 7.3 ft
  • Low 6:28 PM -0.4 ft

First light 6:47 AMSunrise 7:16 AMSunset 5:55 PMLast light 6:24 PM

TuesdayTue, Oct 27
6 AMNoon6 PM12:15a · 6.4′6:33a · 0.1′12:27p · 7.4′7:15p · -0.4′
  • High 12:15 AM 6.4 ft
  • Low 6:33 AM 0.1 ft
  • High 12:27 PM 7.4 ft
  • Low 7:15 PM -0.4 ft

First light 6:48 AMSunrise 7:17 AMSunset 5:54 PMLast light 6:22 PM

Mount Sinai Harbor tide table — next 8 days

Fri, Oct 23Low 3:42 AM
0.53 ft		High 9:39 AM
6.48 ft		Low 4:13 PM
0.29 ft		High 10:03 PM
6.22 ft
Sat, Oct 24Low 4:24 AM
0.32 ft		High 10:20 AM
6.83 ft		Low 4:58 PM
-0.03 ft		High 10:46 PM
6.37 ft
Sun, Oct 25Low 5:06 AM
0.17 ft		High 11:00 AM
7.12 ft		Low 5:43 PM
-0.27 ft		High 11:30 PM
6.44 ft
Mon, Oct 26Low 5:49 AM
0.07 ft		High 11:42 AM
7.31 ft		Low 6:28 PM
-0.40 ft
Tue, Oct 27High 12:15 AM
6.44 ft		Low 6:33 AM
0.06 ft		High 12:27 PM
7.37 ft		Low 7:15 PM
-0.41 ft
Wed, Oct 28High 1:02 AM
6.37 ft		Low 7:19 AM
0.12 ft		High 1:15 PM
7.30 ft		Low 8:05 PM
-0.29 ft
Thu, Oct 29High 1:53 AM
6.23 ft		Low 8:10 AM
0.25 ft		High 2:07 PM
7.10 ft		Low 8:58 PM
-0.08 ft
Fri, Oct 30High 2:47 AM
6.07 ft		Low 9:07 AM
0.44 ft		High 3:04 PM
6.83 ft		Low 9:57 PM
0.15 ft
Sat, Oct 31High 3:46 AM
5.91 ft		Low 10:09 AM
0.63 ft		High 4:06 PM
6.53 ft		Low 10:59 PM
0.35 ft

Times are local (standard/daylight). Heights in feet above MLLW.

Nearby tide stations

About this station

NOAA station ID
8514421
Type
Subordinate station (offsets from NOAA station 8467150)
Coordinates
40.9633, -73.0400
Datum
MLLW (feet)
Time zone
America/New_York

FAQ

When is high tide today at Mount Sinai Harbor, NY?

On Sat, Oct 24, predicted high tide at Mount Sinai Harbor, NY is at 10:20 AM, 10:46 PM local time.

When is low tide today at Mount Sinai Harbor, NY?

On Sat, Oct 24, predicted low tide at Mount Sinai Harbor, NY is at 4:24 AM, 4:58 PM local time.

Where does this tide data come from?

Predictions come from NOAA's Center for Operational Oceanographic Products and Services (CO-OPS), station 8514421. Heights are in feet relative to Mean Lower Low Water (MLLW).