tidealmanac
Sun, Dec 20

Monday, December 21, 2026

Riverside, Md., MD · NOAA 8578853 · MLLW · Local time (America/New_York)

Tue, Dec 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. High1:34 AM1.0 ft0.32 m
  2. Low7:00 AM-0.1 ft-0.03 m
  3. High1:49 PM1.3 ft0.40 m
  4. Low8:24 PM-0.1 ft-0.02 m

Range 1.4 ft0.44 m · 4 predicted tides · MLLW

Sun

Civil dawn
6:52 AM
Sunrise
7:22 AM
Solar noon
12:06 PM
Sunset
4:51 PM
Civil dusk
5:21 PM
Daylight
9h 29m

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

Moon

Waxing gibbous93% illuminated · day 12 of the cycle

Between spring and neap: an average tidal range. Approximate phase, computed here.

This week

Fri, Dec 18L 4:08AM 0.0 ft-0.01 mH 10:55AM 1.2 ft0.36 mL 5:03PM 0.0 ft0.01 mH 11:34PM 1.1 ft0.32 mSat, Dec 19L 5:02AM -0.1 ft-0.02 mH 11:54AM 1.2 ft0.37 mL 6:12PM 0.0 ft0.01 mSun, Dec 20H 12:36AM 1.0 ft0.32 mL 5:59AM -0.1 ft-0.02 mH 12:53PM 1.3 ft0.39 mL 7:19PM 0.0 ft-0.01 mMon, Dec 21H 1:34AM 1.0 ft0.32 mL 7:00AM -0.1 ft-0.03 mH 1:49PM 1.3 ft0.40 mL 8:24PM -0.1 ft-0.02 mTue, Dec 22H 2:30AM 1.1 ft0.33 mL 8:04AM -0.1 ft-0.04 mH 2:44PM 1.4 ft0.42 mL 9:23PM -0.1 ft-0.04 mWed, Dec 23H 3:25AM 1.1 ft0.33 mL 9:08AM -0.2 ft-0.05 mH 3:38PM 1.4 ft0.42 mL 10:17PM -0.2 ft-0.06 mThu, Dec 24H 4:19AM 1.1 ft0.34 mL 10:08AM -0.2 ft-0.06 mH 4:33PM 1.4 ft0.42 mL 11:08PM -0.2 ft-0.07 m