tidealmanac
Wed, Dec 16

Thursday, December 17, 2026

Northbury, VA · NOAA 8636558 · MLLW · Local time (America/New_York)

Fri, Dec 18

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. Low2:19 AM0.1 ft0.04 m
  2. High8:15 AM2.8 ft0.85 m
  3. Low2:52 PM0.6 ft0.17 m
  4. High8:30 PM2.7 ft0.82 m

Range 2.6 ft0.80 m · 4 predicted tides · MLLW

Sun

Civil dawn
6:48 AM
Sunrise
7:17 AM
Solar noon
12:04 PM
Sunset
4:51 PM
Civil dusk
5:21 PM
Daylight
9h 34m

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

Moon

First quarter59% illuminated · day 8 of the cycle

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

This week

Mon, Dec 14L 12:16AM 0.2 ft0.07 mH 6:03AM 2.6 ft0.80 mL 12:10PM 0.4 ft0.13 mH 6:16PM 3.1 ft0.94 mTue, Dec 15L 12:55AM 0.2 ft0.07 mH 6:45AM 2.6 ft0.80 mL 12:59PM 0.5 ft0.16 mH 6:58PM 2.9 ft0.90 mWed, Dec 16L 1:36AM 0.2 ft0.06 mH 7:29AM 2.7 ft0.82 mL 1:54PM 0.6 ft0.17 mH 7:42PM 2.8 ft0.86 mThu, Dec 17L 2:19AM 0.1 ft0.04 mH 8:15AM 2.8 ft0.85 mL 2:52PM 0.6 ft0.17 mH 8:30PM 2.7 ft0.82 mFri, Dec 18L 3:07AM 0.1 ft0.02 mH 9:08AM 2.9 ft0.89 mL 3:56PM 0.5 ft0.14 mH 9:27PM 2.6 ft0.79 mSat, Dec 19L 4:00AM -0.1 ft-0.02 mH 10:08AM 3.1 ft0.94 mL 5:01PM 0.3 ft0.09 mH 10:31PM 2.6 ft0.78 mSun, Dec 20L 4:55AM -0.2 ft-0.07 mH 11:09AM 3.3 ft1.01 mL 6:02PM 0.1 ft0.03 mH 11:32PM 2.6 ft0.79 m