Monday, August 31, 2026

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

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

Low4:23 AM0.5 ft0.14 m
High6:09 PM0.8 ft0.24 m

Range 0.3 ft0.10 m · 2 predicted tides · MLLW

Sun

Civil dawn: 5:48 AM
Sunrise: 6:10 AM
Solar noon: 12:25 PM
Sunset: 6:40 PM
Civil dusk: 7:02 PM
Daylight: 12h 30m

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

Moon

Waning gibbous86% illuminated · day 18 of the cycle

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

This week

Fri, Aug 28not loaded Sat, Aug 29not loaded Sun, Aug 30not loaded Mon, Aug 31L 4:23AM 0.5 ft0.14 mH 6:09PM 0.8 ft0.24 m Tue, Sep 1L 4:06AM 0.3 ft0.10 mH 5:43PM 0.9 ft0.27 m Wed, Sep 2L 4:14AM 0.2 ft0.06 mH 6:02PM 1.0 ft0.29 m Thu, Sep 3L 4:42AM 0.1 ft0.03 mH 6:39PM 1.0 ft0.31 m