tidealmanac
Sun, Dec 20

Monday, December 21, 2026

Copper Harbor, AK · NOAA 9450369 · MLLW · Local time (America/Sitka)

Tue, Dec 22

This is a subordinate station: NOAA predicts its highs and lows from a nearby reference station and publishes no curve for it. Nothing is interpolated.

Tides

  1. Low3:19 AM4.4 ft1.34 m
  2. High9:29 AM14.1 ft4.31 m
  3. Low4:40 PM-0.8 ft-0.24 m
  4. High11:16 PM11.3 ft3.44 m

Range 14.9 ft4.55 m · 4 predicted tides · MLLW

Sun

Civil dawn
7:29 AM
Sunrise
8:15 AM
Solar noon
11:48 AM
Sunset
3:22 PM
Civil dusk
4:08 PM
Daylight
7h 7m

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

Moon

Waxing gibbous93% illuminated · day 12 of the cycle

Between spring and neap: an average tidal range. Approximate phase, computed here.

This week

Fri, Dec 18L 12:15AM 3.0 ft0.92 mH 7:01AM 12.3 ft3.74 mL 1:56PM 2.7 ft0.81 mH 7:49PM 9.6 ft2.93 mSat, Dec 19L 1:15AM 3.7 ft1.13 mH 7:49AM 12.8 ft3.91 mL 2:56PM 1.5 ft0.46 mH 9:11PM 10.0 ft3.05 mSun, Dec 20L 2:18AM 4.2 ft1.27 mH 8:38AM 13.5 ft4.11 mL 3:50PM 0.3 ft0.09 mH 10:20PM 10.6 ft3.24 mMon, Dec 21L 3:19AM 4.4 ft1.34 mH 9:29AM 14.1 ft4.31 mL 4:40PM -0.8 ft-0.24 mH 11:16PM 11.3 ft3.44 mTue, Dec 22L 4:17AM 4.4 ft1.35 mH 10:20AM 14.8 ft4.50 mL 5:29PM -1.7 ft-0.51 mWed, Dec 23H 12:07AM 11.9 ft3.63 mL 5:12AM 4.2 ft1.29 mH 11:11AM 15.2 ft4.63 mL 6:17PM -2.3 ft-0.69 mThu, Dec 24H 12:54AM 12.3 ft3.76 mL 6:05AM 4.0 ft1.21 mH 12:02PM 15.4 ft4.70 mL 7:04PM -2.5 ft-0.78 m