tidealmanac
Mon, Oct 19

Tuesday, October 20, 2026

Johnston Atoll, UM · NOAA 1619000 · MLLW · Local time (Pacific/Honolulu)

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 7:12 AMSunset 6:54 PM1:44 AM · 1.6 ft1:44 AM · 0.49 m7:36 AM · 0.8 ft7:36 AM · 0.26 m1:38 PM · 1.9 ft1:38 PM · 0.58 m8:17 PM · 0.5 ft8:17 PM · 0.14 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. High1:44 AM1.6 ft0.49 m
  2. Low7:36 AM0.8 ft0.26 m
  3. High1:38 PM1.9 ft0.58 m
  4. Low8:17 PM0.5 ft0.14 m

Range 1.4 ft0.44 m · 4 predicted tides · MLLW

Sun

Civil dawn
6:50 AM
Sunrise
7:12 AM
Solar noon
1:03 PM
Sunset
6:54 PM
Civil dusk
7:16 PM
Daylight
11h 42m

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 17L 2:36AM 0.7 ft0.23 mH 9:33AM 1.9 ft0.57 mL 4:31PM 0.7 ft0.22 mH 10:37PM 1.3 ft0.40 mSun, Oct 18L 3:48AM 0.9 ft0.28 mH 10:56AM 1.8 ft0.54 mL 6:17PM 0.7 ft0.22 mMon, Oct 19H 12:26AM 1.4 ft0.42 mL 6:00AM 1.0 ft0.29 mH 12:27PM 1.8 ft0.55 mL 7:31PM 0.6 ft0.19 mTue, Oct 20H 1:44AM 1.6 ft0.49 mL 7:36AM 0.8 ft0.26 mH 1:38PM 1.9 ft0.58 mL 8:17PM 0.5 ft0.14 mWed, Oct 21H 2:33AM 1.9 ft0.58 mL 8:34AM 0.6 ft0.20 mH 2:30PM 2.0 ft0.62 mL 8:54PM 0.3 ft0.09 mThu, Oct 22H 3:11AM 2.2 ft0.67 mL 9:19AM 0.4 ft0.13 mH 3:14PM 2.2 ft0.66 mL 9:27PM 0.1 ft0.04 mFri, Oct 23H 3:46AM 2.5 ft0.75 mL 10:00AM 0.2 ft0.07 mH 3:54PM 2.2 ft0.68 mL 9:59PM 0.0 ft0.00 m