tidealmanac
Sat, Oct 17

Sunday, October 18, 2026

Arecibo, PR · NOAA 9757809 · MLLW · Local time (America/Puerto_Rico)

Mon, Oct 19

Predicted tide height, every 6 minutes

HighLowNightTwilight
3.3 ft1.0 m0.8 ft0.3 m-1.6 ft-0.5 m12 AM3 AM6 AM9 AMNoon3 PM6 PM9 PM12 AMSunrise 6:21 AMSunset 6:03 PM12:59 AM · 0.9 ft12:59 AM · 0.29 m6:52 AM · 0.3 ft6:52 AM · 0.10 m2:14 PM · 1.7 ft2:14 PM · 0.51 m9:19 PM · 0.7 ft9:19 PM · 0.22 m

NOAA's sampled predictions for this station and day. Sun times are computed here from the station's coordinates and are not NOAA data.

Tides

  1. High12:59 AM0.9 ft0.29 m
  2. Low6:52 AM0.3 ft0.10 m
  3. High2:14 PM1.7 ft0.51 m
  4. Low9:19 PM0.7 ft0.22 m

Range 1.3 ft0.41 m · 4 predicted tides · MLLW

Sun

Civil dawn
5:59 AM
Sunrise
6:21 AM
Solar noon
12:12 PM
Sunset
6:03 PM
Civil dusk
6:25 PM
Daylight
11h 41m

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

Moon

First quarter49% illuminated · day 7 of the cycle

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

This week

Thu, Oct 15L 4:34AM 0.1 ft0.04 mH 11:42AM 1.8 ft0.56 mL 6:40PM 0.6 ft0.18 mH 11:22PM 0.9 ft0.28 mFri, Oct 16L 5:15AM 0.2 ft0.06 mH 12:30PM 1.8 ft0.54 mL 7:32PM 0.6 ft0.20 mSat, Oct 17H 12:06AM 0.9 ft0.28 mL 6:01AM 0.3 ft0.08 mH 1:21PM 1.7 ft0.52 mL 8:27PM 0.7 ft0.21 mSun, Oct 18H 12:59AM 0.9 ft0.29 mL 6:52AM 0.3 ft0.10 mH 2:14PM 1.7 ft0.51 mL 9:19PM 0.7 ft0.22 mMon, Oct 19H 2:03AM 1.0 ft0.31 mL 7:50AM 0.4 ft0.13 mH 3:06PM 1.7 ft0.51 mL 10:03PM 0.7 ft0.22 mTue, Oct 20H 3:10AM 1.1 ft0.34 mL 8:54AM 0.5 ft0.16 mH 3:56PM 1.7 ft0.51 mL 10:40PM 0.7 ft0.21 mWed, Oct 21H 4:15AM 1.3 ft0.38 mL 10:03AM 0.6 ft0.18 mH 4:43PM 1.6 ft0.50 mL 11:12PM 0.6 ft0.19 m