tidealmanac
Sat, Sep 19

Sunday, September 20, 2026

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

Mon, Sep 21

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. Low1:03 AM1.6 ft0.47 m
  2. High7:06 AM6.3 ft1.93 m
  3. Low1:19 PM1.9 ft0.58 m
  4. High7:25 PM6.8 ft2.09 m

Range 5.3 ft1.61 m · 4 predicted tides · MLLW

Sun

Civil dawn
6:12 AM
Sunrise
6:40 AM
Solar noon
12:48 PM
Sunset
6:56 PM
Civil dusk
7:24 PM
Daylight
12h 17m

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

Moon

First quarter65% illuminated · day 8 of the cycle

Near quarter moon: neap tides, a smaller range than average. Approximate phase, computed here.

This week

Thu, Sep 17H 4:16AM 6.6 ft2.03 mL 10:26AM 1.6 ft0.50 mH 4:31PM 7.2 ft2.21 mL 11:10PM 1.3 ft0.40 mFri, Sep 18H 5:09AM 6.4 ft1.96 mL 11:20AM 1.9 ft0.57 mH 5:26PM 7.0 ft2.12 mSat, Sep 19L 12:06AM 1.5 ft0.46 mH 6:07AM 6.3 ft1.92 mL 12:19PM 2.0 ft0.60 mH 6:25PM 6.8 ft2.08 mSun, Sep 20L 1:03AM 1.6 ft0.47 mH 7:06AM 6.3 ft1.93 mL 1:19PM 1.9 ft0.58 mH 7:25PM 6.8 ft2.09 mMon, Sep 21L 1:59AM 1.5 ft0.45 mH 8:03AM 6.5 ft1.98 mL 2:15PM 1.7 ft0.51 mH 8:22PM 7.0 ft2.14 mTue, Sep 22L 2:50AM 1.3 ft0.38 mH 8:54AM 6.8 ft2.08 mL 3:07PM 1.4 ft0.41 mH 9:12PM 7.3 ft2.21 mWed, Sep 23L 3:36AM 1.0 ft0.30 mH 9:40AM 7.2 ft2.19 mL 3:55PM 1.0 ft0.30 mH 9:57PM 7.5 ft2.29 m