tidealmanac
Sat, Oct 17

Sunday, October 18, 2026

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

Mon, Oct 19

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. Low12:24 AM2.0 ft0.62 m
  2. High7:36 AM9.5 ft2.91 m
  3. Low12:24 PM5.7 ft1.73 m
  4. High6:00 PM10.3 ft3.14 m

Range 8.3 ft2.52 m · 4 predicted tides · MLLW

Sun

Civil dawn
6:54 AM
Sunrise
7:33 AM
Solar noon
12:40 PM
Sunset
5:48 PM
Civil dusk
6:26 PM
Daylight
10h 15m

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

Moon

First quarter49% illuminated · day 7 of the cycle

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

This week

Thu, Oct 15H 4:16AM 10.7 ft3.26 mL 9:32AM 4.4 ft1.33 mH 3:20PM 12.2 ft3.72 mL 10:29PM 0.8 ft0.26 mFri, Oct 16H 5:07AM 10.1 ft3.08 mL 10:10AM 4.9 ft1.51 mH 3:57PM 11.6 ft3.53 mL 11:20PM 1.5 ft0.46 mSat, Oct 17H 6:13AM 9.7 ft2.95 mL 11:00AM 5.4 ft1.65 mH 4:47PM 10.9 ft3.32 mSun, Oct 18L 12:24AM 2.0 ft0.62 mH 7:36AM 9.5 ft2.91 mL 12:24PM 5.7 ft1.73 mH 6:00PM 10.3 ft3.14 mMon, Oct 19L 1:41AM 2.2 ft0.68 mH 8:51AM 9.8 ft2.98 mL 2:16PM 5.4 ft1.64 mH 7:35PM 10.0 ft3.05 mTue, Oct 20L 2:52AM 2.1 ft0.65 mH 9:41AM 10.3 ft3.14 mL 3:33PM 4.5 ft1.38 mH 8:58PM 10.2 ft3.10 mWed, Oct 21L 3:45AM 1.9 ft0.57 mH 10:17AM 10.9 ft3.33 mL 4:23PM 3.4 ft1.05 mH 10:03PM 10.6 ft3.23 m