King Tides Oct. 24–30: What Flood Insurance Covers (and the 30-Day Wait)

Miami-Dade County and the City of Miami list October 24–30 as the next king tide window, with the highest predicted tides of the fall. The South Florida Water Management District (SFWMD) forecasts the year’s highest predicted tide on the East Coast for October 27, 2026. On those days, salt water can push up through storm drains and cover low streets, yards and driveways, even when it isn’t raining.

If that water reaches your house or car, which policy pays? Here is what the official sources say.

When and where king tides flood

King tides are the highest predicted high tides of the year. Miami-Dade County explains that the highest tides in Southeast Florida come in the fall, partly because the water is warmer and seasonal winds push water levels higher. The City of Miami says king tide flooding usually lasts about three hours, roughly 1.5 hours before and after the peak. Its table puts the October 27 peaks at about 10:31 AM and 10:34 PM.

• County and City of Miami dates still ahead: Oct. 24–30 (highest), Nov. 6–9 and Nov. 23–26.
• SFWMD East Coast outlook: elevated tides Oct. 22–Nov. 12, then Nov. 22–29 and Dec. 22–27.
• Worse with weather: the County warns that rain, strong winds or big waves on top of a king tide can cause more severe flooding.

NOAA reports that high tide flooding is now about twice as frequent in U.S. coastal communities as it was 20 years ago.

Your homeowners policy generally does not cover flood

The Florida Department of Financial Services (DFS) is direct about it: flood damage is not covered by a homeowners policy, and the definition of flood typically includes an overflow of inland or tidal waters. FloodSmart, FEMA’s flood insurance site, says the same about most homeowners and renters policies. DFS adds that flood is usually a separate policy, although some insurers offer it as an endorsement, so check your declarations page.

Does king tide water count as a “flood”?

Under the National Flood Insurance Program (NFIP) Standard Flood Insurance Policy, a flood is a general and temporary condition of water covering two or more acres of normally dry land, or two or more properties (one of them yours), from the overflow of inland or tidal waters or the unusual and rapid runoff of surface water. Tidal water that covers your street and enters your home can fit that definition. The policy pays for direct physical loss, so there must be visible damage to insured property.

Even then, the NFIP does not cover everything a king tide can reach. FloodSmart and the policy itself exclude, among other things:

• Cars and most self-propelled vehicles
• Property outside the building, such as landscaping, decks, patios, fences, seawalls, docks and swimming pools
• Temporary housing and living expenses while your home is repaired
• Water damage that comes mainly from a problem confined to the house, such as a broken pipe

What an NFIP policy covers

Building coverage, up to $250,000 for a home, pays for the structure, electrical and plumbing systems, the water heater, built-in appliances and permanently installed flooring and cabinets. Contents coverage, up to $100,000, is bought separately and protects furniture, clothing, electronics, and the washer and dryer. Each has its own deductible. When flooding is imminent, the policy can also pay up to $1,000 for sandbags, pumps and similar measures, and up to $1,000 to move insured property to safety.

The 30-day wait: buying during the tides is too late

Under federal rule 44 CFR 61.11, a new NFIP policy, or added coverage, generally takes effect at 12:01 a.m. on the 30th day after you apply and pay. A policy applied for and paid on October 17 would start on November 16: after the Oct. 24–30 and Nov. 6–9 tides, but before Nov. 23–26. The policy also won’t pay for a flood that was already under way on the day you applied.

There are a few exceptions:

• Mortgage closing: if you buy flood insurance when you make, increase, extend or renew a loan, coverage can start at closing.
• New flood map: within 13 months after your community’s flood map is revised, the wait is one day (FloodSmart describes it as buying within a year of a newly designated high-risk zone).
• Renewal changes: FloodSmart says there is no wait when you change coverage while renewing.

Your car is a separate question

Flood insurance does not cover cars. For a vehicle, flood damage falls under comprehensive (other than collision) coverage, which DFS says pays for damage from fire, theft, windstorm, vandalism or flood. Florida only requires PIP and property damage liability to register a car, so a driver with just the minimum has no coverage for a flooded engine. Compare the options in comprehensive vs. collision in Florida, and if you are shopping for a used car this season, read how to spot a flood-damaged title.

The County’s advice for king tides: move vehicles to higher ground before the tides begin, don’t drive through flooded streets, and wash your car with fresh water after driving through salt water.

Two dates to keep in mind

December 11, 2026. FEMA says the NFIP’s authorization was extended on September 2, 2026, through December 11, 2026. If Congress lets it lapse, FEMA would stop selling and renewing policies until it acts, though valid claims would still be paid. Another reason not to wait.

January 1, 2027. Citizens Property Insurance Corporation will require flood coverage on most of its new and renewing personal residential policies that include wind. See what Citizens policyholders need to do.

A quick king tide checklist

1. Find your declarations pages and confirm whether you have flood coverage for the building and for contents.
2. Look up your flood zone and how close your street sits to tidal water.
3. Take photos or a short video of each room and your belongings now.
4. Move cars and valuables off the ground floor or to higher ground before the peak days.
5. If water gets in, photograph the damage and report it promptly. NFIP policies ask for a signed proof of loss within 60 days. Our hurricane claim checklist walks through documenting a loss.

How M&K Agency can help

Bring your current home and auto declarations pages to our office at 33550 S Dixie Hwy, Suite 102, Florida City (Monday–Friday 9–6, Saturday by appointment), or call (305) 859-3953. A licensed agent will check what you have, explain the waiting period and flood options, and review comprehensive coverage on your car. Learn more on our flood insurance page or request a quote.

Coverage depends on the terms of the policy you choose. Talk with a licensed agent about your situation.