tidealmanac
Sat, Aug 21

Sunday, August 22, 2027

Sumner Island, AK · NOAA 9451163 · MLLW · Local time (America/Sitka)

Mon, Aug 23

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. High3:57 AM10.7 ft3.25 m
  2. Low9:53 AM1.8 ft0.55 m
  3. High4:05 PM12.2 ft3.72 m
  4. Low10:45 PM1.0 ft0.32 m

Range 11.2 ft3.40 m · 4 predicted tides · MLLW

Sun

Civil dawn
4:55 AM
Sunrise
5:38 AM
Solar noon
12:58 PM
Sunset
8:19 PM
Civil dusk
9:01 PM
Daylight
14h 41m

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

Moon

Waning gibbous72% illuminated · day 20 of the cycle

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

This week

Thu, Aug 19H 2:05AM 12.1 ft3.68 mL 8:33AM -0.2 ft-0.07 mH 2:44PM 11.9 ft3.64 mL 8:49PM 1.3 ft0.40 mFri, Aug 20H 2:40AM 11.7 ft3.57 mL 8:59AM 0.3 ft0.09 mH 3:09PM 12.1 ft3.69 mL 9:24PM 1.1 ft0.34 mSat, Aug 21H 3:16AM 11.3 ft3.43 mL 9:26AM 1.0 ft0.30 mH 3:36PM 12.2 ft3.71 mL 10:02PM 1.0 ft0.31 mSun, Aug 22H 3:57AM 10.7 ft3.25 mL 9:53AM 1.8 ft0.55 mH 4:05PM 12.2 ft3.72 mL 10:45PM 1.0 ft0.32 mMon, Aug 23H 4:44AM 10.0 ft3.04 mL 10:24AM 2.7 ft0.81 mH 4:40PM 12.1 ft3.70 mL 11:38PM 1.2 ft0.36 mTue, Aug 24H 5:45AM 9.3 ft2.84 mL 11:02AM 3.5 ft1.08 mH 5:26PM 12.0 ft3.65 mWed, Aug 25L 12:46AM 1.3 ft0.39 mH 7:09AM 8.8 ft2.69 mL 11:57AM 4.3 ft1.32 mH 6:29PM 11.8 ft3.60 m