tidealmanac
Mon, Sep 21

Tuesday, September 22, 2026

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

Wed, Sep 23

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. Low8:58 AM0.3 ft0.08 m
  2. High8:32 PM1.0 ft0.29 m

Range 0.7 ft0.21 m · 2 predicted tides · MLLW

Sun

Civil dawn
5:51 AM
Sunrise
6:13 AM
Solar noon
12:17 PM
Sunset
6:21 PM
Civil dusk
6:43 PM
Daylight
12h 8m

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

Moon

Waxing gibbous83% illuminated · day 10 of the cycle

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

This week

Sat, Sep 19L 5:26AM 0.1 ft0.03 mH 7:14PM 0.9 ft0.27 mSun, Sep 20L 6:30AM 0.1 ft0.04 mH 7:52PM 0.9 ft0.28 mMon, Sep 21L 7:43AM 0.2 ft0.06 mH 8:17PM 0.9 ft0.29 mTue, Sep 22L 8:58AM 0.3 ft0.08 mH 8:32PM 1.0 ft0.29 mWed, Sep 23L 10:05AM 0.4 ft0.11 mH 8:39PM 0.9 ft0.28 mThu, Sep 24L 11:04AM 0.5 ft0.14 mH 8:40PM 0.9 ft0.27 mFri, Sep 25L 4:06AM 0.6 ft0.18 mH 7:54AM 0.6 ft0.19 mL 12:03PM 0.6 ft0.17 mH 8:29PM 0.8 ft0.25 m