Quick answer: The October 27, 2026 king tide was the highest ever recorded in South Florida outside of a hurricane because three things lined up at once: an exceptionally high astronomical tide, persistent onshore winds that pushed extra water against the coast, and decades of sea level rise that have raised the starting point for every tide. NOAA’s Virginia Key gauge in Miami reached about 2.54 feet above mean higher high water, versus roughly 0.73 feet predicted.
Key Facts at a Glance
- Peak date: Tuesday, October 27, 2026.
- Record level: About 2.54 ft above mean higher high water at NOAA’s Virginia Key gauge (10:18 a.m.), exceeding the National Weather Service major flood threshold.
- Predicted level: About 0.73 ft, so the water ran roughly 1.8 ft above the tide table forecast.
- Where: Flooding reached from Miami to West Palm Beach, with Port Everglades also reporting a record.
- Not a hurricane: Hurricane Irma (2017) still produced a higher surge, about 3.6 ft above high tide at Virginia Key.
- Long-term trend: Miami has seen about 8 inches of sea level rise since the Virginia Key gauge was installed in 1994.
What Are King Tides?
A king tide is the informal name for the highest predictable tides of the year. The term is not an official scientific category. It describes the biggest high tides that occur when the sun, moon, and Earth line up during a new or full moon, particularly when the moon is also at its closest point to Earth, called perigee.
King tides are predictable and natural. Tide tables list them months in advance. What makes them newsworthy is what happens when the water has nowhere to go: saltwater pushes up through storm drains, over seawalls, and into streets, often on sunny days with no rain. Scientists and local governments often call this high-tide flooding or “sunny day” flooding.
What Causes King Tides?
King tides are the result of astronomy first and weather second. Several factors combine:
- Sun and moon alignment. During new and full moons, the gravitational pull of the sun and moon combine to create “spring tides,” which are higher than average high tides (the name has nothing to do with the season).
- The moon’s closest approach. When a new or full moon coincides with perigee, the pull is stronger and the tide is taller. A “supermoon” is one example.
- Seasonal water levels. In South Florida, late summer and fall bring warmer, expanded ocean water and shifts in ocean currents such as the Gulf Stream, which raise the baseline water level.
- Wind and air pressure. Strong onshore winds stack water against the coast, and low atmospheric pressure lets the sea surface rise further.
- Sea level rise. Higher oceans mean every tide, including the king tide, starts from a higher base.
Why Were the 2026 King Tides So High in South Florida?
The October 2026 event was not caused by a single factor. It was a stack of them arriving together.
1. A very high astronomical tide
The late-October window (the South Florida Water Management District listed Oct. 22 to Nov. 12 as an elevated-tide period) fell during a full-moon spring tide, one of the strongest tidal pushes of the year.
2. Onshore winds “bulldozing” water ashore
Reporting on the event describes a relatively ordinary low pressure system sending persistent onshore winds toward the coast at the same time as the high astronomical tide. University of Miami researcher Brian McNoldy described the effect as bulldozing water onto the coast. With no hurricane or nor’easter nearby, wind was the multiplier that turned a big tide into a record one.
3. Sea level rise raising the starting line
According to Miami Herald reporting, Miami has experienced roughly 8 inches of sea level rise since the Virginia Key gauge began operating in 1994. McNoldy said the 2026 event was the highest king tide ever, not just since the gauge was installed, and that he does not believe a king tide reached this height before 1994. Scientists cited in the coverage project about 2 feet of sea level rise in South Florida by 2060 and potentially up to 6 feet by 2100.
4. Rain-saturated ground and strained drainage
The region had a very wet fall. NBC Miami reported that September 2026 was the wettest September on record in South Florida, with 20.77 inches at the time of its report. Saturated ground leaves less room for water to drain. Public radio coverage also noted that aging drainage systems can allow seawater to flow backward into streets when tides are exceptionally high.
How the 2026 tide compared with the forecast
| Measure | Value | What it means |
|---|---|---|
| Predicted tide, Virginia Key (Oct. 27) | ~0.73 ft above MHHW | The astronomical forecast alone |
| Observed tide, Virginia Key (Oct. 27) | ~2.54 ft above MHHW | Exceeded the NWS major flood threshold |
| Difference | ~1.8 ft | Extra water from wind, pressure, warm water, and other local conditions |
| Hurricane Irma surge (2017) | ~3.6 ft above high tide | A hurricane still produced a higher water level |
MHHW means mean higher high water, the average height of the higher of the two daily high tides. Figures are preliminary NOAA data as reported by news outlets and may be revised.
What Did the Flooding Look Like?
Floodwater covered streets and sidewalks from Miami to West Palm Beach. Reports described the closure of Fort Lauderdale’s Las Olas Bridge, a closed stretch of A1A in Fort Lauderdale during an earlier September tide, flooded golf courses and neighborhoods, stalled cars, and backed-up sewage systems. Many residents compared it with hurricane flooding, even though no storm was nearby.
Frequently Asked Questions
Is a king tide the same as a storm surge?
No. A king tide is a predictable astronomical high tide. Storm surge is water pushed ashore by a storm. The two can combine, and a king tide plus a storm is a much more dangerous situation than either alone.
Were the 2026 king tides really the highest ever?
According to the University of Miami’s Brian McNoldy and Miami Herald reporting, it was the highest king tide on record in South Florida and the highest water level at the Virginia Key gauge outside of a hurricane. Hurricane surge such as Irma’s was still higher, so the accurate claim is “highest king tide,” not “highest water level ever.”
Are king tides getting worse?
The tides themselves follow the same lunar cycles, but rising seas mean the same tide now reaches higher than it used to. Researchers cited by Florida Atlantic University say high-tide flooding already happens multiple times a year in South Florida and is expected to increase in frequency and severity as seas rise.
When are the next king tides?
The South Florida Water Management District listed these 2026 elevated-tide periods: Oct. 22 to Nov. 12, Nov. 22 to 29, and Dec. 22 to 27. NBC Miami also listed Nov. 5 to 11 as a king tide cycle. Check your city’s king tide page and NOAA’s tide predictions for exact times.
What should South Florida homeowners and buyers check?
Look at a property’s elevation, FEMA flood zone, flood insurance history, drainage, seawall condition, and how the street and neighborhood handled recent high tides. An elevation certificate and a flood insurance quote are practical starting points. Sellers should also be aware of Florida’s flood disclosure requirements for residential sales and confirm current rules with a real estate attorney.
Summary: What the 2026 King Tides Mean for South Florida
King tides are the highest predictable tides of the year, caused by the alignment of the sun and moon and amplified by the moon’s closest approach to Earth. The October 27, 2026 king tide set a South Florida record outside of a hurricane because a very high astronomical tide met persistent onshore winds, a very wet fall, and about 8 inches of sea level rise in Miami since 1994. The flooding was a reminder that elevation, drainage, and flood risk are now core parts of any South Florida real estate decision.
Buying or Selling a Home in South Florida? Contact Natasha.
Whether you are buying or selling a home in the South Florida area, understanding flood zones, elevation, insurance, and how a neighborhood handles high water can protect your investment. Contact Natasha at Live South Florida Realty, Inc. for local guidance and a clear plan for your next move.
Sources
- Miami Herald via Tampa Bay Times: “Highest king tide ever” swamps South Florida (Oct. 27, 2026)
- Weatherboy: Heavy rain threatens flash flooding days after record king tide (NOAA Virginia Key figures)
- Surfer: South Florida swamped as Sunshine State sees “highest king tide ever”
- Florida Atlantic University: King Tide Season Is Here (Aug. 18, 2026)
- NBC Miami: King tides continue; September 2026 rainfall record
- WLRN: Historic king tides overwhelm south Florida (Nov. 1, 2026)
Last updated November 2, 2026. This article is for general information and is not engineering, insurance, legal, or financial advice. Tide measurements are preliminary and may be revised by NOAA.
