Nassau River Entrance Tides Today
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Nassau River Entrance runs a mean tidal range of about 4.8 ft. This month the highest water, 6.7 ft, comes on the morning of Oct 27, and the lowest, a -0.0 ft minus tide, on the morning of Oct 28.
| High tide | 1:03 AM | 5.3 ft |
| Low tide | 7:48 AM | 0.6 ft |
| High tide | 1:37 PM | 6.2 ft |
| Low tide | 8:45 PM | 1.1 ft |
Today on the water at Nassau River Entrance
Today at Nassau River Entrance: high tide at 1:03 AM (5.3 ft) and 1:37 PM (6.2 ft), low tide at 7:48 AM (0.6 ft) and 8:45 PM (1.1 ft). The National Weather Service forecast for today is chance rain showers with NE winds 13 to 21 mph, 75°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 7:38 AM and sunset at 6:40 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Today | Chance Rain Showers | NE 13 to 21 mph | 75°F |
| Tonight | Slight Chance Rain Showers | NE 21 mph | 71°F |
Forecast: National Weather Service point forecast for this location.
Where Nassau River Entrance is
Nassau River Entrance sits at 30.5183° N, 81.4533° W on Florida's Atlantic coast, at Jacksonville, FL. The station here is a subordinate tide prediction point. NOAA has no gauge in the water at this spot; its times and heights are published as offsets from a reference gauge, named below. The closest gauge measuring live water level is Mayport (Bar Pilot Dock) (NOAA 8720218), 8.4 mi away, and high and low water here run on average about 25 min later than there.
The tide at Nassau River Entrance
Nassau River Entrance 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 5.7 ft, and 5.2 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 Nassau River Entrance about 1.1 hours after the moon passes overhead. That lag is local, which is why high water does not line up with the moon.
- NOAA predicts tides here from Fernandina Beach, Amelia River, station 8720030. High tide comes about 18 min earlier and low tide about 41 min later than there.
- High tide heights run about 0.86 times the reference.
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 Nassau River Entrance from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 5.7 ft above it and mean sea level 2.7 ft. These datums are controlled from NOAA's Nassauville, Nassau River East, Fl gauge. Source: NOAA CO-OPS station 8720135, established 1978, gauge removed 1978. The tide times and heights are published as time and height offsets from its reference gauge; TidalMap republishes them daily and does not alter them.
Tide stations near Nassau River Entrance
- Nassauville: 5.0 mi, tides about 28 min later
- Little Talbot Island, ocean: 6.7 mi, tides about 36 min earlier
- Sisters Creek: 7.0 mi, tides about 16 min later
- Mayport (Bar Pilot Dock): 8.4 mi, tides about 25 min earlier
- Mayport Naval Station, Water Treatment Dock: 8.5 mi, tides about 37 min earlier
TidalMapMonthly tide calendar
🌊 Biggest flood tides at Nassau River Entrance this month: Oct 10, Oct 11, Oct 12, 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 Nassau River Entrance this month: Oct 27, Oct 28. 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 Nassau River Entrance, 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 | 10:50–12:50 AM 12:26–2:26 PM | 55 |
| Sun Nov 1 🌗 | 6:05–8:05 AM 6:30–8:30 PM | — 1:13–3:13 PM | 42 |
| Mon Nov 2 🌗 | 7:01–9:01 AM 7:26–9:26 PM | 12:01–2:01 AM 1:52–3:52 PM | 33 |
| Tue Nov 3 🌗 | 7:52–9:52 AM 8:17–10:17 PM | 1:09–3:09 AM 2:27–4:27 PM | 47 |
| Wed Nov 4 🌗 | 8:40–10:40 AM 9:05–11:05 PM | 2:14–4:14 AM 2:58–4:58 PM | 60 |
| Thu Nov 5 🌘 | 9:26–11:26 AM 9:51–11:51 PM | 3:17–5:17 AM 3:28–5:28 PM | 73 |
| Fri Nov 6 🌘 | 10:11–12:11 PM 10:36–12:36 AM | 4:18–6:18 AM 3:57–5:57 PM | 83 |
Predictions & observations: NOAA CO-OPS station 8720135. 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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