tidealmanac
Wed, Dec 16

Thursday, December 17, 2026

Composite Island, AK · NOAA 9452682 · MLLW · Local time (America/Juneau)

Fri, Dec 18

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. Low12:28 AM2.7 ft0.81 m
  2. High7:13 AM14.9 ft4.55 m
  3. Low1:47 PM4.4 ft1.34 m
  4. High7:18 PM11.6 ft3.54 m

Range 12.3 ft3.74 m · 4 predicted tides · MLLW

Sun

Civil dawn
8:01 AM
Sunrise
8:55 AM
Solar noon
12:02 PM
Sunset
3:09 PM
Civil dusk
4:04 PM
Daylight
6h 14m

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

Moon

First quarter59% illuminated · day 8 of the cycle

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

This week

Mon, Dec 14H 5:03AM 14.2 ft4.32 mL 10:37AM 5.6 ft1.72 mH 4:10PM 15.1 ft4.60 mL 11:05PM 1.0 ft0.31 mTue, Dec 15H 5:44AM 14.2 ft4.33 mL 11:31AM 5.5 ft1.68 mH 4:59PM 13.8 ft4.21 mL 11:44PM 1.8 ft0.55 mWed, Dec 16H 6:27AM 14.4 ft4.40 mL 12:35PM 5.2 ft1.57 mH 6:00PM 12.5 ft3.83 mThu, Dec 17L 12:28AM 2.7 ft0.81 mH 7:13AM 14.9 ft4.55 mL 1:47PM 4.4 ft1.34 mH 7:18PM 11.6 ft3.54 mFri, Dec 18L 1:19AM 3.6 ft1.09 mH 8:01AM 15.7 ft4.79 mL 2:56PM 3.3 ft0.99 mH 8:45PM 11.4 ft3.48 mSat, Dec 19L 2:19AM 4.4 ft1.34 mH 8:51AM 16.7 ft5.09 mL 3:58PM 1.8 ft0.56 mH 10:06PM 12.0 ft3.65 mSun, Dec 20L 3:22AM 5.0 ft1.51 mH 9:42AM 17.9 ft5.45 mL 4:53PM 0.3 ft0.10 mH 11:13PM 13.0 ft3.96 m