What time is high tide during the October 24–30 king tides at Key Biscayne?

NOAA predictions for the Virginia Key station (8723214), checked October 8, 2026, show the highest high tide of that window on October 27 at 10:31 a.m. EDT, about 2.98 feet above mean lower low water. Daytime high tides during the window fall between about 8 a.m. and 1 p.m.

Will Key Biscayne streets flood during king tides?

A predicted king tide is not a flood report. Miami-Dade says king tides often cause nuisance flooding in coastal and low-lying areas, and that flooding can be worse when they coincide with heavy rain, strong winds or big waves. Check current National Weather Service alerts and avoid driving or walking through flood water.

Key Biscayne King Tides: Fall 2026 Dates and High-Tide Times

Q: When are the fall 2026 king tides in Miami-Dade?

Miami-Dade County, citing the South Florida Water Management District, lists fall 2026 king-tide windows of September 10–13, September 26–30, October 7–13, October 24–30, November 6–9 and November 23–26. The county marks October 7–13 and October 24–30 as having the highest predicted tides.

Key Biscayne king tides: fall 2026 dates and times

King tides are the highest predicted high tides of the year, and in South Florida the biggest ones come in the fall. Below are Miami-Dade’s remaining 2026 windows, the predicted high-tide times at the NOAA station on Virginia Key, and what the county advises.

Upcoming predicted king-tide windows

Each window disappears from this page the day after it ends. Times are NOAA predictions for station 8723214 (Virginia Key), checked October 8, 2026, in local time. Heights are above mean lower low water (MLLW), the same datum as the tide card on our homepage.

If no window is shown above, the fall 2026 list has ended. Check Miami-Dade’s king-tide page for the next published dates.

What a king tide is

Miami-Dade County describes king tides as the highest predicted high tides of the year, technically called perigean spring tides. They happen in both spring and fall, and the county says the highest tides in Southeast Florida come in the fall, partly because the water is warmer and seasonal winds push water levels higher. The county’s 2026 dates come from the South Florida Water Management District, which listed six fall windows: September 10–13, September 26–30, October 7–13, October 24–30, November 6–9 and November 23–26. October 7–13 and October 24–30 are marked as the highest.

The county also notes that sea level rise is making these tides happen more often, last longer and reach further inland than they used to. If heavy rain, strong onshore wind or big waves line up with a king tide, flooding can be more severe than the tide prediction alone suggests.

What a prediction does and does not tell you

The dates and times on this page are astronomical predictions. They are not a forecast that a particular Key Biscayne street, parking lot or seawall will flood, and they are not an official warning. Actual water levels depend on wind, rain and offshore swell on the day. For an outlook that factors in those conditions, the county points to the Enhanced Tidal Forecast run with the University of Miami. For warnings, check current National Weather Service alerts for Key Biscayne.

To see which areas are vulnerable to tidal flooding, the county recommends NOAA’s Sea Level Rise Viewer: zoom in to your neighborhood and open the flood-frequency tab, where areas shown in red are vulnerable to king-tide flooding.

County safety advice

Move vehicles to higher ground before the king tides begin if you can, and rinse your car with fresh water after driving through salt water.
Do not drive through flooded areas. It is dangerous and can damage your vehicle. Find another route.
Avoid walking through flood water. It can be a health hazard. If you have to, wash your hands, clothes and pets afterward.
Boaters: high tides mean lower clearance under bridges. Check the tide before you leave the dock.

Planning around the tides on the island

The predicted highs during the late-October and November windows mostly land in the morning, so a beach walk, a paddle launch or a drive across the causeway at mid-morning may coincide with the peak. Check the daily tide card for exact times, the marine forecast for wind and waves, and causeway conditions before leaving. If you launch a boat from Crandon Marina, keep the county’s bridge-clearance warning in mind.

Want the tide outlook without remembering to look? The free Monday tide forecast email sends a sourced seven-day NOAA tide forecast each week.