tidealmanac
Mon, Sep 14

Tuesday, September 15, 2026

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

Wed, Sep 16

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. Low2:44 AM0.2 ft0.07 m
  2. High3:56 PM0.8 ft0.26 m

Range 0.6 ft0.19 m · 2 predicted tides · MLLW

Sun

Civil dawn
5:50 AM
Sunrise
6:12 AM
Solar noon
12:20 PM
Sunset
6:27 PM
Civil dusk
6:49 PM
Daylight
12h 15m

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

Moon

Waxing crescent16% illuminated · day 3 of the cycle

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

This week

Sat, Sep 12L 3:55AM 0.6 ft0.17 mH 9:43AM 0.7 ft0.22 mL 3:30PM 0.6 ft0.20 mH 8:19PM 0.7 ft0.22 mSun, Sep 13L 3:26AM 0.5 ft0.14 mH 11:10AM 0.8 ft0.23 mMon, Sep 14L 2:41AM 0.3 ft0.10 mH 3:00PM 0.8 ft0.25 mTue, Sep 15L 2:44AM 0.2 ft0.07 mH 3:56PM 0.8 ft0.26 mWed, Sep 16L 3:10AM 0.1 ft0.04 mH 4:45PM 0.8 ft0.26 mThu, Sep 17L 3:47AM 0.1 ft0.03 mH 5:35PM 0.9 ft0.26 mFri, Sep 18L 4:32AM 0.1 ft0.02 mH 6:27PM 0.9 ft0.26 m