Florida
Mayport Naval Station
Water Treatment Dock · Florida · NOAA station 8720211 · Tide predictions
30.4000, -81.4133
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48-hour outlook
Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.
Drawn from the high/low predictions — NOAA publishes high/low only for this station.
The next seven days
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H = high tide · L = low tide · highs & lows in local time
On the water nearby
Offshore Fernandina Beach, FL (132) buoy · 23 mi N · Station 41112
Wind & wave reports →
Nearby tide stations
- MAYPORT (BAR PILOT DOCK) · 0.9 mi W
- Mayport Naval Station, Degausing Structure · 1.1 mi E
- Mayport (Ferry Depot) · 1.2 mi SW
- Little Talbot Island, ocean · 2.1 mi N
- Pablo Creek entrance · 2.6 mi SW
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 6.3 ft — Fri Oct 1 · 9:54 AM
Lowest predicted low tide: -1.6 ft — Sat Jan 23 · 2:10 AM
Biggest single-day swing: 7.2 ft on Sat Jan 23
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sun Feb 21 | 2:27 PM | -1.3 ft |
| Sat Jan 23 | 2:51 PM | -1.3 ft |
| Mon Feb 22 | 3:10 PM | -1.3 ft |
| Sun Jan 24 | 3:37 PM | -1.3 ft |
| Sat Feb 20 | 1:42 PM | -1.2 ft |
| Fri Jan 22 | 2:03 PM | -1.2 ft |
| Mon Jul 5 | 3:48 PM | -1.1 ft |
| Sun Jul 4 | 2:55 PM | -1.1 ft |
| Mon Jan 25 | 4:25 PM | -1.1 ft |
| Tue Aug 3 | 3:35 PM | -1.1 ft |
269 minus tides (below 0 ft) are predicted here in 2027. The table shows up to the 10 lowest that fall between 7 AM and 7 PM — the ones worth planning a clam dig or tidepool walk around.
About this station
Mayport Naval Station, Water Treatment Dock is one of NOAA's reference tide stations — its predictions are computed directly from harmonic analysis of water levels observed here, and other nearby stations are calculated from it.
Two coasts, two personalities: modest 2 to 4 ft semidiurnal ranges on the Atlantic side, mixed tides on the Gulf side, and king tides that flood streets on calm, sunny days.