tidealmanac
Tue, Oct 20

Wednesday, October 21, 2026

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

Thu, Oct 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. Low5:27 AM0.4 ft0.13 m
  2. High6:45 PM0.8 ft0.26 m

Range 0.4 ft0.13 m · 2 predicted tides · MLLW

Sun

Civil dawn
5:57 AM
Sunrise
6:19 AM
Solar noon
12:09 PM
Sunset
5:59 PM
Civil dusk
6:21 PM
Daylight
11h 39m

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

Moon

Waxing gibbous79% illuminated · day 10 of the cycle

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

This week

Sun, Oct 18L 4:21AM 0.1 ft0.03 mH 5:44PM 0.9 ft0.27 mMon, Oct 19L 5:02AM 0.2 ft0.06 mH 6:15PM 0.9 ft0.27 mTue, Oct 20L 5:32AM 0.3 ft0.09 mH 6:34PM 0.9 ft0.27 mWed, Oct 21L 5:27AM 0.4 ft0.13 mH 6:45PM 0.8 ft0.26 mThu, Oct 22L 3:17AM 0.5 ft0.15 mH 6:43PM 0.8 ft0.24 mFri, Oct 23L 1:55AM 0.5 ft0.15 mH 10:46AM 0.7 ft0.21 mL 2:25PM 0.7 ft0.21 mH 6:02PM 0.7 ft0.21 mSat, Oct 24L 1:08AM 0.4 ft0.13 mH 10:22AM 0.8 ft0.25 m