tidealmanac
Wed, Sep 16

Thursday, September 17, 2026

St. Marks, St. Marks River, FL · NOAA 8728142 · MLLW · Local time (America/New_York)

Fri, Sep 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. Low12:24 AM1.7 ft0.51 m
  2. High5:48 AM3.3 ft1.01 m
  3. Low2:12 PM0.8 ft0.24 m
  4. High8:10 PM2.4 ft0.74 m

Range 2.5 ft0.77 m · 4 predicted tides · MLLW

Sun

Civil dawn
6:58 AM
Sunrise
7:22 AM
Solar noon
1:32 PM
Sunset
7:41 PM
Civil dusk
8:05 PM
Daylight
12h 19m

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

Moon

First quarter34% illuminated · day 5 of the cycle

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

This week

Mon, Sep 14H 4:44AM 3.6 ft1.09 mL 11:53AM 0.2 ft0.06 mH 5:42PM 3.3 ft1.00 mL 11:38PM 1.3 ft0.40 mTue, Sep 15H 5:04AM 3.5 ft1.07 mL 12:32PM 0.3 ft0.10 mH 6:22PM 3.0 ft0.91 mL 11:59PM 1.5 ft0.46 mWed, Sep 16H 5:24AM 3.4 ft1.04 mL 1:16PM 0.5 ft0.16 mH 7:08PM 2.7 ft0.82 mThu, Sep 17L 12:24AM 1.7 ft0.51 mH 5:48AM 3.3 ft1.01 mL 2:12PM 0.8 ft0.24 mH 8:10PM 2.4 ft0.74 mFri, Sep 18L 12:53AM 1.9 ft0.57 mH 6:18AM 3.1 ft0.95 mL 3:34PM 1.0 ft0.29 mH 9:51PM 2.3 ft0.69 mSat, Sep 19L 1:36AM 2.0 ft0.62 mH 7:04AM 2.9 ft0.89 mL 5:15PM 1.0 ft0.30 mH 11:53PM 2.4 ft0.72 mSun, Sep 20L 3:19AM 2.2 ft0.67 mH 9:08AM 2.7 ft0.83 mL 6:32PM 0.8 ft0.26 m