tidealmanac
Wed, Sep 9

Thursday, September 10, 2026

Cos Cob Harbor, CT · NOAA 8469549 · MLLW · Local time (America/New_York)

Fri, Sep 11

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.

Tides

  1. Low5:19 AM-0.1 ft-0.02 m
  2. High11:18 AM8.3 ft2.52 m
  3. Low5:40 PM0.0 ft0.00 m
  4. High11:39 PM8.3 ft2.53 m

Range 8.4 ft2.55 m · 4 predicted tides · MLLW

Sun

Civil dawn
6:02 AM
Sunrise
6:30 AM
Solar noon
12:52 PM
Sunset
7:14 PM
Civil dusk
7:41 PM
Daylight
12h 44m

Computed from the station's coordinates (NOAA solar algorithm, ±1 min); not NOAA tide data. Sun calendars: sunupsundown.site.

Moon

New moon2% illuminated · day 28 of the cycle

Near new or full moon: spring tides, a larger range than average. Approximate phase, computed here.

This week

Mon, Sep 7L 2:37AM 0.7 ft0.20 mH 8:34AM 7.1 ft2.15 mL 2:51PM 0.9 ft0.26 mH 8:59PM 8.0 ft2.43 mTue, Sep 8L 3:37AM 0.4 ft0.12 mH 9:35AM 7.5 ft2.28 mL 3:52PM 0.5 ft0.16 mH 9:57PM 8.2 ft2.50 mWed, Sep 9L 4:31AM 0.1 ft0.04 mH 10:29AM 7.9 ft2.41 mL 4:49PM 0.2 ft0.07 mH 10:50PM 8.3 ft2.54 mThu, Sep 10L 5:19AM -0.1 ft-0.02 mH 11:18AM 8.3 ft2.52 mL 5:40PM 0.0 ft0.00 mH 11:39PM 8.3 ft2.53 mFri, Sep 11L 6:04AM -0.1 ft-0.04 mH 12:03PM 8.5 ft2.58 mL 6:28PM -0.1 ft-0.03 mSat, Sep 12H 12:25AM 8.2 ft2.49 mL 6:47AM 0.0 ft-0.01 mH 12:47PM 8.5 ft2.60 mL 7:14PM 0.0 ft-0.01 mSun, Sep 13H 1:10AM 7.9 ft2.42 mL 7:28AM 0.2 ft0.07 mH 1:30PM 8.4 ft2.57 mL 7:59PM 0.1 ft0.04 m