tidealmanac
Thu, Oct 29

Friday, October 30, 2026

Rio Vista, CA · NOAA 9415316 · MLLW · Local time (America/Los_Angeles)

Sat, Oct 31

Predicted tide height, every 6 minutes

HighLowNightTwilight
4.9 ft1.5 m1.6 ft0.5 m-1.6 ft-0.5 m12 AM3 AM6 AM9 AMNoon3 PM6 PM9 PM12 AMSunrise 7:30 AMSunset 6:11 PM2:19 AM · -0.2 ft2:19 AM · -0.06 m8:37 AM · 2.5 ft8:37 AM · 0.77 m1:19 PM · 1.5 ft1:19 PM · 0.47 m6:34 PM · 4.1 ft6:34 PM · 1.25 m

NOAA's sampled predictions for this station and day. Sun times are computed here from the station's coordinates and are not NOAA data.

Tides

  1. Low2:19 AM-0.2 ft-0.06 m
  2. High8:37 AM2.5 ft0.77 m
  3. Low1:19 PM1.5 ft0.47 m
  4. High6:34 PM4.1 ft1.25 m

Range 4.3 ft1.32 m · 4 predicted tides · MLLW

Sun

Civil dawn
7:03 AM
Sunrise
7:30 AM
Solar noon
12:50 PM
Sunset
6:11 PM
Civil dusk
6:38 PM
Daylight
10h 40m

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 5:24AM 2.6 ft0.79 mL 10:42AM 1.2 ft0.37 mH 4:10PM 4.4 ft1.35 mWed, Oct 28L 12:30AM -0.2 ft-0.05 mH 6:24AM 2.5 ft0.76 mL 11:26AM 1.3 ft0.40 mH 4:52PM 4.5 ft1.36 mThu, Oct 29L 1:23AM -0.2 ft-0.07 mH 7:30AM 2.5 ft0.76 mL 12:17PM 1.4 ft0.44 mH 5:40PM 4.4 ft1.33 mFri, Oct 30L 2:19AM -0.2 ft-0.06 mH 8:37AM 2.5 ft0.77 mL 1:19PM 1.5 ft0.47 mH 6:34PM 4.1 ft1.25 mSat, Oct 31L 3:19AM -0.1 ft-0.04 mH 9:43AM 2.7 ft0.82 mL 2:34PM 1.6 ft0.48 mH 7:38PM 3.8 ft1.15 mSun, Nov 1L 3:18AM -0.1 ft-0.03 mH 9:43AM 2.9 ft0.88 mL 2:57PM 1.5 ft0.47 mH 7:58PM 3.4 ft1.03 mMon, Nov 2L 4:16AM 0.0 ft-0.01 mH 10:38AM 3.2 ft0.97 mL 4:18PM 1.3 ft0.40 mH 9:31PM 3.1 ft0.95 m