tidealmanac

Mount Sinai Harbor, NY tide chart

NOAA station 8514421 · Subordinate station · Datum MLLW · Local time (America/New_York)

Change stationFull year 2026

Today · Mon, Oct 19

High tideLow tide
  1. Low12:26 AM1.2 ft0.36 m
  2. High6:22 AM5.3 ft1.62 m
  3. Low12:46 PM1.5 ft0.45 m
  4. High6:41 PM5.6 ft1.70 m

This is a subordinate station: NOAA predicts its highs and lows from a nearby reference station and publishes no curve for it. Nothing is interpolated.

Next high6:22 AM5.3 ft1.62 m · in 3h 46m
Next low12:46 PM1.5 ft0.45 m · in 10h 10m
Range today4.4 ft1.34 m4 predicted tides today
MoonFirstFirst quarter · neap tides

October 2026

Full year
Date1st tide2nd tide3rd tide4th tide
1Thu
3:01 AMHigh · 6.1 ft1.86 m
9:19 AMLow · 0.6 ft0.17 m
3:18 PMHigh · 6.9 ft2.10 m
10:10 PMLow · 0.4 ft0.11 m
2Fri
3:58 AMHigh · 5.9 ft1.80 m
10:18 AMLow · 0.8 ft0.24 m
4:17 PMHigh · 6.6 ft2.02 m
11:13 PMLow · 0.6 ft0.17 m
3Sat
5:00 AMHigh · 5.7 ft1.75 m
11:25 AMLow · 0.9 ft0.29 m
5:23 PMHigh · 6.4 ft1.95 m
4Sun
12:20 AMLow · 0.7 ft0.21 m
6:08 AMHigh · 5.7 ft1.73 m
12:36 PMLow · 1.0 ft0.30 m
6:33 PMHigh · 6.3 ft1.91 m
5Mon
1:26 AMLow · 0.7 ft0.20 m
7:17 AMHigh · 5.8 ft1.77 m
1:46 PMLow · 0.9 ft0.26 m
7:43 PMHigh · 6.3 ft1.92 m
6Tue
2:29 AMLow · 0.5 ft0.16 m
8:22 AMHigh · 6.1 ft1.86 m
2:51 PMLow · 0.6 ft0.19 m
8:47 PMHigh · 6.4 ft1.95 m
7Wed
3:26 AMLow · 0.3 ft0.10 m
9:20 AMHigh · 6.5 ft1.97 m
3:50 PMLow · 0.3 ft0.11 m
9:43 PMHigh · 6.5 ft1.99 m
8Thu
4:16 AMLow · 0.2 ft0.05 m
10:10 AMHigh · 6.8 ft2.07 m
4:43 PMLow · 0.1 ft0.03 m
10:33 PMHigh · 6.6 ft2.00 m
9Fri
5:03 AMLow · 0.1 ft0.03 m
10:56 AMHigh · 7.0 ft2.13 m
5:31 PMLow · 0.0 ft-0.01 m
11:19 PMHigh · 6.6 ft2.00 m
10Sat
5:45 AMLow · 0.1 ft0.04 m
11:38 AMHigh · 7.1 ft2.16 m
6:16 PMLow · -0.1 ft-0.03 m
11Sun
12:03 AMHigh · 6.5 ft1.97 m
6:26 AMLow · 0.3 ft0.08 m
12:18 PMHigh · 7.1 ft2.15 m
6:58 PMLow · 0.0 ft-0.01 m
12Mon
12:45 AMHigh · 6.3 ft1.92 m
7:05 AMLow · 0.4 ft0.14 m
12:58 PMHigh · 6.9 ft2.10 m
7:39 PMLow · 0.1 ft0.03 m
13Tue
1:27 AMHigh · 6.1 ft1.86 m
7:45 AMLow · 0.7 ft0.21 m
1:38 PMHigh · 6.7 ft2.04 m
8:20 PMLow · 0.3 ft0.10 m
14Wed
2:10 AMHigh · 5.9 ft1.79 m
8:26 AMLow · 0.9 ft0.28 m
2:20 PMHigh · 6.4 ft1.96 m
9:02 PMLow · 0.6 ft0.17 m
15Thu
2:55 AMHigh · 5.7 ft1.73 m
9:09 AMLow · 1.2 ft0.35 m
3:04 PMHigh · 6.1 ft1.87 m
9:48 PMLow · 0.8 ft0.24 m
16Fri
3:42 AMHigh · 5.5 ft1.67 m
9:57 AMLow · 1.4 ft0.41 m
3:53 PMHigh · 5.9 ft1.80 m
10:37 PMLow · 1.0 ft0.31 m
17Sat
4:32 AMHigh · 5.3 ft1.63 m
10:50 AMLow · 1.5 ft0.45 m
4:45 PMHigh · 5.7 ft1.74 m
11:30 PMLow · 1.1 ft0.35 m
18Sun
5:26 AMHigh · 5.3 ft1.61 m
11:48 AMLow · 1.5 ft0.47 m
5:42 PMHigh · 5.6 ft1.70 m
19Mon
12:26 AMLow · 1.2 ft0.36 m
6:22 AMHigh · 5.3 ft1.62 m
12:46 PMLow · 1.5 ft0.45 m
6:41 PMHigh · 5.6 ft1.70 m
20Tue
1:20 AMLow · 1.1 ft0.34 m
7:18 AMHigh · 5.5 ft1.67 m
1:43 PMLow · 1.3 ft0.39 m
7:37 PMHigh · 5.7 ft1.73 m
21Wed
2:11 AMLow · 1.0 ft0.29 m
8:09 AMHigh · 5.8 ft1.75 m
2:37 PMLow · 1.0 ft0.30 m
8:30 PMHigh · 5.8 ft1.78 m
22Thu
2:58 AMLow · 0.7 ft0.23 m
8:56 AMHigh · 6.1 ft1.86 m
3:26 PMLow · 0.6 ft0.20 m
9:18 PMHigh · 6.0 ft1.84 m
23Fri
3:42 AMLow · 0.5 ft0.16 m
9:39 AMHigh · 6.5 ft1.97 m
4:13 PMLow · 0.3 ft0.09 m
10:03 PMHigh · 6.2 ft1.90 m
24Sat
4:24 AMLow · 0.3 ft0.10 m
10:20 AMHigh · 6.8 ft2.08 m
4:58 PMLow · 0.0 ft-0.01 m
10:46 PMHigh · 6.4 ft1.94 m
25Sun
5:06 AMLow · 0.2 ft0.05 m
11:00 AMHigh · 7.1 ft2.17 m
5:43 PMLow · -0.3 ft-0.08 m
11:30 PMHigh · 6.4 ft1.96 m
26Mon
5:49 AMLow · 0.1 ft0.02 m
11:42 AMHigh · 7.3 ft2.23 m
6:28 PMLow · -0.4 ft-0.12 m
27Tue
12:15 AMHigh · 6.4 ft1.96 m
6:33 AMLow · 0.1 ft0.02 m
12:27 PMHigh · 7.4 ft2.25 m
7:15 PMLow · -0.4 ft-0.12 m
28Wed
1:02 AMHigh · 6.4 ft1.94 m
7:19 AMLow · 0.1 ft0.04 m
1:15 PMHigh · 7.3 ft2.22 m
8:05 PMLow · -0.3 ft-0.09 m
29Thu
1:53 AMHigh · 6.2 ft1.90 m
8:10 AMLow · 0.3 ft0.08 m
2:07 PMHigh · 7.1 ft2.17 m
8:58 PMLow · -0.1 ft-0.03 m
30Fri
2:47 AMHigh · 6.1 ft1.85 m
9:07 AMLow · 0.4 ft0.13 m
3:04 PMHigh · 6.8 ft2.08 m
9:57 PMLow · 0.2 ft0.05 m
31Sat
3:46 AMHigh · 5.9 ft1.80 m
10:09 AMLow · 0.6 ft0.19 m
4:06 PMHigh · 6.5 ft1.99 m
10:59 PMLow · 0.4 ft0.11 m
Thu13:01 AM6.1 ft1.86 m9:19 AM0.6 ft0.17 m3:18 PM6.9 ft2.10 m10:10 PM0.4 ft0.11 mFri23:58 AM5.9 ft1.80 m10:18 AM0.8 ft0.24 m4:17 PM6.6 ft2.02 m11:13 PM0.6 ft0.17 mSat35:00 AM5.7 ft1.75 m11:25 AM0.9 ft0.29 m5:23 PM6.4 ft1.95 mSun412:20 AM0.7 ft0.21 m6:08 AM5.7 ft1.73 m12:36 PM1.0 ft0.30 m6:33 PM6.3 ft1.91 mMon51:26 AM0.7 ft0.20 m7:17 AM5.8 ft1.77 m1:46 PM0.9 ft0.26 m7:43 PM6.3 ft1.92 mTue62:29 AM0.5 ft0.16 m8:22 AM6.1 ft1.86 m2:51 PM0.6 ft0.19 m8:47 PM6.4 ft1.95 mWed73:26 AM0.3 ft0.10 m9:20 AM6.5 ft1.97 m3:50 PM0.3 ft0.11 m9:43 PM6.5 ft1.99 mShow the whole month

Heights relative to MLLW; times local to the station. Predictions from NOAA CO-OPS; not for navigation.

Nearby stations

Distance from this station. A nearer station is not necessarily the right one for your shore.
Cedar BeachNY · NOAA 8514422 · 1 mi (0 km)Port JeffersonNY · NOAA 8514560 · 2 mi (3 km)Port Jefferson Harbor entranceNY · NOAA 8514594 · 3 mi (4 km)PatchogueNY · NOAA 8514322 · 15 mi (24 km)