tidealmanac
Sun, Sep 20

Monday, September 21, 2026

Castle Hill, RI · NOAA 8453201 · MLLW · Local time (America/New_York)

Tue, Sep 22

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. High4:06 AM2.6 ft0.78 m
  2. Low10:15 AM0.9 ft0.28 m
  3. High4:42 PM2.9 ft0.88 m
  4. Low11:22 PM0.8 ft0.25 m

Range 2.1 ft0.63 m · 4 predicted tides · MLLW

Sun

Civil dawn
6:04 AM
Sunrise
6:32 AM
Solar noon
12:39 PM
Sunset
6:46 PM
Civil dusk
7:14 PM
Daylight
12h 14m

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

Moon

Waxing gibbous75% illuminated · day 9 of the cycle

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

This week

Fri, Sep 18H 1:20AM 2.6 ft0.80 mL 6:28AM 0.9 ft0.27 mH 1:49PM 2.9 ft0.90 mL 7:57PM 1.2 ft0.35 mSat, Sep 19H 2:11AM 2.5 ft0.77 mL 7:33AM 1.0 ft0.31 mH 2:42PM 2.8 ft0.86 mL 9:40PM 1.2 ft0.35 mSun, Sep 20H 3:05AM 2.5 ft0.76 mL 8:56AM 1.0 ft0.32 mH 3:42PM 2.8 ft0.85 mL 10:40PM 1.0 ft0.31 mMon, Sep 21H 4:06AM 2.6 ft0.78 mL 10:15AM 0.9 ft0.28 mH 4:42PM 2.9 ft0.88 mL 11:22PM 0.8 ft0.25 mTue, Sep 22H 5:05AM 2.7 ft0.84 mL 11:12AM 0.7 ft0.22 mH 5:33PM 3.0 ft0.93 mL 11:57PM 0.6 ft0.18 mWed, Sep 23H 5:53AM 3.0 ft0.92 mL 11:58AM 0.5 ft0.15 mH 6:14PM 3.2 ft0.99 mThu, Sep 24L 12:29AM 0.3 ft0.11 mH 6:35AM 3.3 ft1.01 mL 12:40PM 0.3 ft0.09 mH 6:53PM 3.4 ft1.05 m