tidealmanac
Thu, Sep 3

Friday, September 4, 2026

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

Sat, Sep 5

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. Low5:24 AM0.0 ft0.01 m
  2. High7:23 PM1.1 ft0.32 m

Range 1.0 ft0.32 m · 2 predicted tides · MLLW

Sun

Civil dawn
5:48 AM
Sunrise
6:10 AM
Solar noon
12:23 PM
Sunset
6:36 PM
Civil dusk
6:58 PM
Daylight
12h 26m

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

Moon

Last quarter48% illuminated · day 22 of the cycle

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

This week

Tue, Sep 1L 4:06AM 0.3 ft0.10 mH 5:43PM 0.9 ft0.27 mWed, Sep 2L 4:14AM 0.2 ft0.06 mH 6:02PM 1.0 ft0.29 mThu, Sep 3L 4:42AM 0.1 ft0.03 mH 6:39PM 1.0 ft0.31 mFri, Sep 4L 5:24AM 0.0 ft0.01 mH 7:23PM 1.1 ft0.32 mSat, Sep 5L 6:22AM 0.0 ft0.00 mH 8:09PM 1.1 ft0.34 mSun, Sep 6L 7:41AM 0.0 ft0.01 mH 8:54PM 1.1 ft0.34 mMon, Sep 7L 9:17AM 0.1 ft0.03 mH 9:33PM 1.1 ft0.34 m