tidealmanac
Mon, Oct 19

Tuesday, October 20, 2026

San Juan, PR · NOAA 9755371 · MLLW · Local time (America/Puerto_Rico)

Wed, Oct 21

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 6:20 AMSunset 5:59 PM3:32 AM · 1.1 ft3:32 AM · 0.32 m9:26 AM · 0.5 ft9:26 AM · 0.14 m4:42 PM · 1.6 ft4:42 PM · 0.47 m11:12 PM · 0.7 ft11:12 PM · 0.21 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. High3:32 AM1.1 ft0.32 m
  2. Low9:26 AM0.5 ft0.14 m
  3. High4:42 PM1.6 ft0.47 m
  4. Low11:12 PM0.7 ft0.21 m

Range 1.1 ft0.34 m · 4 predicted tides · MLLW

Sun

Civil dawn
5:57 AM
Sunrise
6:20 AM
Solar noon
12:09 PM
Sunset
5:59 PM
Civil dusk
6:21 PM
Daylight
11h 39m

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

Moon

Waxing gibbous70% illuminated · day 9 of the cycle

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

This week

Sat, Oct 17H 12:08AM 1.0 ft0.29 mL 6:39AM 0.3 ft0.10 mH 2:18PM 1.6 ft0.50 mL 9:17PM 0.8 ft0.25 mSun, Oct 18H 1:02AM 1.0 ft0.30 mL 7:31AM 0.4 ft0.11 mH 3:11PM 1.6 ft0.49 mL 10:02PM 0.8 ft0.24 mMon, Oct 19H 2:14AM 1.0 ft0.30 mL 8:26AM 0.4 ft0.12 mH 3:59PM 1.6 ft0.48 mL 10:39PM 0.8 ft0.23 mTue, Oct 20H 3:32AM 1.1 ft0.32 mL 9:26AM 0.5 ft0.14 mH 4:42PM 1.6 ft0.47 mL 11:12PM 0.7 ft0.21 mWed, Oct 21H 4:40AM 1.2 ft0.35 mL 10:30AM 0.5 ft0.15 mH 5:21PM 1.5 ft0.47 mL 11:43PM 0.6 ft0.18 mThu, Oct 22H 5:41AM 1.3 ft0.40 mL 11:36AM 0.5 ft0.16 mH 5:58PM 1.5 ft0.45 mFri, Oct 23L 12:14AM 0.5 ft0.14 mH 6:36AM 1.5 ft0.45 mL 12:41PM 0.6 ft0.17 mH 6:34PM 1.4 ft0.43 m