tidealmanac
Thu, Dec 17

Friday, December 18, 2026

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

Sat, Dec 19

No NOAA sampled curve is loaded for this day; the predicted highs and lows are listed below. Nothing is interpolated.

Tides

  1. High3:16 AM1.5 ft0.46 m
  2. Low9:15 AM0.7 ft0.22 m
  3. High2:33 PM1.2 ft0.37 m
  4. Low9:04 PM0.1 ft0.03 m

Range 1.4 ft0.43 m · 4 predicted tides · MLLW

Sun

Civil dawn
6:29 AM
Sunrise
6:53 AM
Solar noon
12:23 PM
Sunset
5:54 PM
Civil dusk
6:18 PM
Daylight
11h 1m

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

Moon

First quarter69% illuminated · day 9 of the cycle

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

This week

Tue, Dec 15H 12:19AM 1.1 ft0.32 mL 5:45AM 0.5 ft0.14 mH 12:35PM 1.6 ft0.50 mL 7:24PM 0.5 ft0.14 mWed, Dec 16H 1:18AM 1.2 ft0.36 mL 6:45AM 0.6 ft0.18 mH 1:11PM 1.5 ft0.46 mL 7:54PM 0.4 ft0.11 mThu, Dec 17H 2:17AM 1.3 ft0.41 mL 7:56AM 0.7 ft0.20 mH 1:50PM 1.4 ft0.42 mL 8:27PM 0.2 ft0.08 mFri, Dec 18H 3:16AM 1.5 ft0.46 mL 9:15AM 0.7 ft0.22 mH 2:33PM 1.2 ft0.37 mL 9:04PM 0.1 ft0.03 mSat, Dec 19H 4:13AM 1.7 ft0.51 mL 10:37AM 0.7 ft0.21 mH 3:23PM 1.1 ft0.32 mL 9:47PM 0.0 ft-0.01 mSun, Dec 20H 5:09AM 1.8 ft0.56 mL 11:54AM 0.6 ft0.18 mH 4:20PM 0.9 ft0.28 mL 10:36PM -0.2 ft-0.06 mMon, Dec 21H 6:04AM 2.0 ft0.61 mL 1:01PM 0.5 ft0.16 mH 5:20PM 0.8 ft0.26 mL 11:28PM -0.3 ft-0.10 m