tidealmanac
Thu, Oct 29

Friday, October 30, 2026

Port Houghton, Robert Islands, AK · NOAA TWC1673 · MLLW · Local time (America/Juneau)

Sat, Oct 31

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. High4:28 AM14.0 ft4.25 m
  2. Low10:06 AM4.4 ft1.34 m
  3. High4:05 PM16.6 ft5.07 m
  4. Low10:53 PM-0.9 ft-0.28 m

Range 17.5 ft5.35 m · 4 predicted tides · MLLW

Sun

Civil dawn
7:19 AM
Sunrise
8:00 AM
Solar noon
12:38 PM
Sunset
5:15 PM
Civil dusk
5:56 PM
Daylight
9h 15m

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

Moon

Waning gibbous79% illuminated · day 19 of the cycle

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

This week

Tue, Oct 27H 2:03AM 16.0 ft4.87 mL 7:51AM 1.7 ft0.51 mH 1:51PM 18.8 ft5.72 mL 8:27PM -3.5 ft-1.06 mWed, Oct 28H 2:48AM 15.6 ft4.76 mL 8:32AM 2.4 ft0.73 mH 2:31PM 18.6 ft5.66 mL 9:11PM -3.1 ft-0.94 mThu, Oct 29H 3:35AM 14.9 ft4.54 mL 9:16AM 3.3 ft1.01 mH 3:15PM 17.8 ft5.44 mL 9:59PM -2.2 ft-0.66 mFri, Oct 30H 4:28AM 14.0 ft4.25 mL 10:06AM 4.4 ft1.34 mH 4:05PM 16.6 ft5.07 mL 10:53PM -0.9 ft-0.28 mSat, Oct 31H 5:31AM 13.0 ft3.97 mL 11:07AM 5.4 ft1.65 mH 5:05PM 15.2 ft4.62 mL 11:57PM 0.4 ft0.13 mSun, Nov 1H 5:48AM 12.5 ft3.82 mL 11:27AM 6.0 ft1.82 mH 5:22PM 13.8 ft4.20 mMon, Nov 2L 12:11AM 1.4 ft0.43 mH 7:10AM 12.8 ft3.89 mL 12:58PM 5.6 ft1.72 mH 6:53PM 13.0 ft3.96 m