tidealmanac
Thu, Dec 17

Friday, December 18, 2026

Santa Isabel, PR · NOAA 9756639 · 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. High5:42 AM0.7 ft0.20 m
  2. Low11:31 AM0.2 ft0.07 m
  3. High4:43 PM0.6 ft0.17 m
  4. Low11:02 PM-0.1 ft-0.03 m

Range 0.7 ft0.23 m · 4 predicted tides · MLLW

Sun

Civil dawn
6:27 AM
Sunrise
6:50 AM
Solar noon
12:22 PM
Sunset
5:54 PM
Civil dusk
6:17 PM
Daylight
11h 3m

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 15L 12:44AM 0.0 ft-0.01 mH 6:47AM 0.4 ft0.11 mL 10:20AM 0.3 ft0.08 mH 5:05PM 0.8 ft0.24 mWed, Dec 16L 12:09AM 0.0 ft0.01 mH 6:13AM 0.4 ft0.13 mL 10:42AM 0.2 ft0.07 mH 4:53PM 0.7 ft0.21 mL 11:37PM 0.0 ft0.01 mThu, Dec 17H 5:46AM 0.5 ft0.16 mL 11:05AM 0.2 ft0.07 mH 4:45PM 0.6 ft0.19 mL 11:14PM 0.0 ft0.00 mFri, Dec 18H 5:42AM 0.7 ft0.20 mL 11:31AM 0.2 ft0.07 mH 4:43PM 0.6 ft0.17 mL 11:02PM -0.1 ft-0.03 mSat, Dec 19H 5:55AM 0.8 ft0.24 mL 11:57AM 0.2 ft0.08 mH 4:39PM 0.5 ft0.15 mL 11:03PM -0.2 ft-0.06 mSun, Dec 20H 6:19AM 0.9 ft0.26 mL 12:25PM 0.3 ft0.10 mH 4:30PM 0.5 ft0.14 mL 11:14PM -0.3 ft-0.10 mMon, Dec 21H 6:51AM 0.9 ft0.27 mL 12:54PM 0.4 ft0.13 mH 4:11PM 0.5 ft0.15 mL 11:30PM -0.4 ft-0.12 m