State Road 312, Matanzas River Tides Today
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State Road 312, Matanzas River runs a mean tidal range of about 4.1 ft. This month the highest water, 5.4 ft, comes on the morning of Oct 28, and the lowest, a -0.4 ft minus tide, on the morning of Oct 27.
| High tide | 1:16 AM | 4.0 ft |
| Low tide | 7:18 AM | 0.1 ft |
| High tide | 1:51 PM | 5.0 ft |
| Low tide | 8:24 PM | 0.4 ft |
Today on the water at State Road 312, Matanzas River
Today at State Road 312, Matanzas River: high tide at 1:16 AM (4.0 ft) and 1:51 PM (5.0 ft), low tide at 7:18 AM (0.1 ft) and 8:24 PM (0.4 ft). The National Weather Service forecast for today is mostly cloudy with E winds 13 to 20 mph, 77°F. Wind that strong can hold water in or push it out, so the real tide may run above or below these predictions. In effect now: Small Craft Advisory. Sunrise is at 7:37 AM and sunset at 6:40 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Today | Mostly Cloudy | E 13 to 20 mph | 77°F |
| Tonight | Mostly Cloudy then Slight Chance Rain Showers | E 21 mph | 73°F |
Forecast: National Weather Service point forecast for this location.
Where State Road 312, Matanzas River is
State Road 312, Matanzas River sits at 29.8667° N, 81.3067° W on Florida's Atlantic coast, at St. Augustine, FL. The station here is a historical NOAA reference station: a gauge measured the tide at this spot from 1998 until 2008, and NOAA still publishes harmonic predictions from that record. There is no live reading here today. The closest gauge measuring live water level is I-295 bridge (west end) (NOAA 8720357), 32.1 mi away, and high and low water here run on average about 160 min earlier than there.
The tide at State Road 312, Matanzas River
State Road 312, Matanzas River has a semidiurnal tide: two highs and two lows a day of about the same size, roughly 12 hours 25 minutes apart. This month's predictions average 1.9 high tides a day here. The mean range from lower low to higher high is 4.8 ft, and 4.3 ft between the average high and the average low, a moderate tide. On an average day the higher high tops the lower high by 0.3 ft and the lower low sits 0.2 ft below the other low. For the water around it: Florida's Atlantic tides are semidiurnal, two highs and two lows a day, with ranges of 2 to 5 ft that shrink inside the lagoons.
About this station
- High tide reaches State Road 312, Matanzas River about 1.3 hours after the moon passes overhead. That lag is local, which is why high water does not line up with the moon.
- Highest water on record: 7.4 ft on Sep 27, 2004.
- Lowest on record: -1.4 ft on Mar 7, 2004.
Datum and source
Heights on this page are feet above mean lower low water (MLLW), the zero NOAA's nautical charts use for soundings. A predicted 0.0 ft low is the average of the lower low each day; a minus tide is water below chart datum, and a 2 ft high means 2 ft more water than the chart shows. NOAA fixes MLLW at State Road 312, Matanzas River from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 4.8 ft above it and mean sea level 2.4 ft. The land survey datum NAVD88, the zero on topographic maps and flood maps, is 2.8 ft above MLLW here, so a water level on this page converts to NAVD88 by subtracting that amount. These datums are controlled from NOAA's Mayport (Bar Pilots Dock), FL gauge. Source: NOAA CO-OPS station 8720582, established 1998, gauge removed 2008. The tide times and heights are NOAA's official harmonic predictions for this station; TidalMap republishes them daily and does not alter them.
Tide stations near State Road 312, Matanzas River
- St. Augustine, city dock: 1.7 mi, tides about 13 min earlier
- St. Augustine Beach: 2.7 mi, tides about 43 min earlier
- Vilano Beach, Tolomato River: 3.5 mi, tides about 14 min earlier
- Crescent Beach, Matanzas River: 7.4 mi, tides about 46 min later
- Palmetto Bluff: 16.9 mi, tides about 326 min earlier
TidalMapMonthly tide calendar
🌊 Biggest flood tides at State Road 312, Matanzas River this month: Oct 10, Oct 11, Oct 25, Oct 26, Oct 27, Oct 28, Oct 29, Oct 30. These spring highs push water up into the grass and over the oyster rock; prime for poling into flooded marsh for tailing reds.
🔻 Negative (minus) low tides at State Road 312, Matanzas River this month: Oct 8, Oct 9, Oct 10, Oct 11, Oct 12, Oct 25, Oct 26, Oct 27, Oct 28, Oct 29, Oct 30. These drain the flats and expose the oyster rock, prime for sight-fishing and clamming.
Best fishing times (solunar)
Major and minor solunar windows for State Road 312, Matanzas River, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).
| Day | Major windows | Minor windows | Score |
|---|---|---|---|
| Today 🌖 | 5:05–7:05 AM 5:30–7:30 PM | 10:51–12:51 AM 12:24–2:24 PM | 55 |
| Sun Nov 1 🌗 | 6:05–8:05 AM 6:30–8:30 PM | — 1:11–3:11 PM | 42 |
| Mon Nov 2 🌗 | 7:00–9:00 AM 7:25–9:25 PM | 12:01–2:01 AM 1:51–3:51 PM | 33 |
| Tue Nov 3 🌗 | 7:52–9:52 AM 8:17–10:17 PM | 1:09–3:09 AM 2:26–4:26 PM | 47 |
| Wed Nov 4 🌗 | 8:40–10:40 AM 9:05–11:05 PM | 2:14–4:14 AM 2:57–4:57 PM | 60 |
| Thu Nov 5 🌘 | 9:26–11:26 AM 9:51–11:51 PM | 3:16–5:16 AM 3:27–5:27 PM | 73 |
| Fri Nov 6 🌘 | 10:10–12:10 PM 10:35–12:35 AM | 4:17–6:17 AM 3:57–5:57 PM | 83 |
Predictions & observations: NOAA CO-OPS station 8720582. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.
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