tidealmanac
Tue, Dec 15

Wednesday, December 16, 2026

Arroyo, PR · NOAA TEC4737 · MLLW · Local time (America/Puerto_Rico)

Thu, Dec 17

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. Low2:26 AM0.2 ft0.06 m
  2. High1:27 PM0.7 ft0.22 m

Range 0.5 ft0.16 m · 2 predicted tides · MLLW

Sun

Civil dawn
6:24 AM
Sunrise
6:48 AM
Solar noon
12:20 PM
Sunset
5:51 PM
Civil dusk
6:15 PM
Daylight
11h 3m

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

Moon

First quarter48% illuminated · day 7 of the cycle

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

This week

Sun, Dec 13L 2:03AM -0.1 ft-0.03 mH 1:25PM 0.8 ft0.25 mMon, Dec 14L 2:25AM 0.0 ft-0.01 mH 1:43PM 0.8 ft0.25 mTue, Dec 15L 2:38AM 0.1 ft0.03 mH 1:48PM 0.8 ft0.24 mWed, Dec 16L 2:26AM 0.2 ft0.06 mH 1:27PM 0.7 ft0.22 mThu, Dec 17L 12:39AM 0.3 ft0.08 mH 12:09PM 0.7 ft0.21 mL 10:42PM 0.2 ft0.07 mFri, Dec 18H 10:30AM 0.7 ft0.22 mL 10:11PM 0.1 ft0.04 mSat, Dec 19H 9:52AM 0.8 ft0.24 mL 10:10PM 0.0 ft-0.01 m