Hurricane, flood and lava insurance in Hawaii: what buyers need

Which hazards matter for Hawaii buyers?

The Insurance Division says Hawaii faces “the concentration of major catastrophic risks—hurricanes, lava flows, floods, and wildfires—within a relatively small geographic area.” On Oahu, where Honolulu sits, the City’s Department of Emergency Management (DEM) lists tsunami, hurricane, flood and wildfire pages for residents. Lava is a hazard on the island of Hawaii, not on Oahu, but it shapes the statewide market. Each hazard is insured differently:

Sources: Hawaii Insurance Division homeowners guide (2026) and FAQs; FEMA FloodSmart.

How does hurricane insurance work in Hawaii?

The Insurance Division explains that hurricane coverage is designed for damage caused by a hurricane and may be written as a separate policy or an endorsement, often with its own deductible. Check whether you have hurricane coverage, the hurricane deductible, and what property and living expenses it covers.

Most companies use a 72-hour clause: once the Central Pacific Hurricane Center issues a hurricane watch or warning, damage in the following 72 hours falls under the hurricane policy. The Division says to read the exact trigger language in your policy.

Hurricane insurance is optional if you own outright, but the Division says lenders will require it if there is a mortgage. Premiums depend on construction type, deductible and the age and condition of the home, and discounts are often given for hurricane clips and foundation anchors.

If damage is below your deductible, the insurer pays nothing; above it, the insurer pays the difference.

The risk is current: on September 25, 2026, the Insurance Commissioner allowed out-of-state adjusters to work temporarily in Hawaii after Hurricanes Lala and Lowell and Tropical Storm/Hurricane Nolo. The City’s DEM warns that, because many older Hawaii homes were not built or retrofitted for hurricanes, “even a Category 1 storm could leave thousands homeless on Oʻahu.”

What does flood insurance cover?

Flood damage is not covered by homeowners policies. The Insurance Division’s March 2026 release says flood insurance “is separate from homeowners insurance and generally not required unless the property is in a designated high-risk flood zone,” but that flooding can occur outside those areas.

Under FEMA’s NFIP, as FloodSmart describes it:

• Building coverage goes up to $250,000 and contents coverage up to $100,000 for homeowners.
• Coverage starts 30 days after purchase. There is no wait if you buy while making, increasing, extending or renewing a mortgage.
• Flood insurance is mandatory for federally backed mortgages in high-risk zones (A and V zones) of participating communities.

FloodSmart’s flood zone page explains the zones. DEM adds that flash flooding on Oahu can strike urban areas, valleys and streams, and that Hawaii averages about 11 flood events a year, mostly from October to May. For the basics, see our guide to flood insurance.

Are tsunami zones a separate risk?

Yes. DEM says a local tsunami could reach Oahu in as little as 30 minutes, while a distant tsunami takes about 5 hours from Alaska to 14 hours from Chile. It maps two evacuation areas on Oahu: the Primary Tsunami Evacuation Zone, which is evacuated for most tsunami warnings, and the larger Extreme Tsunami Evacuation Zone, which is evacuated only for an Extreme Tsunami Warning. DEM offers an address lookup, so check the home you plan to buy before you make an offer.

What about lava and wildfire?

Lava. The Insurance Division says each company’s policy differs, and that fire caused by lava heat “may be covered as a fire peril.” It adds that in Lava Zones 1 and 2 “most insurers are unwilling to issue policies at any price.” If you are buying on the island of Hawaii, check the lava zone before you sign.

Wildfire. DEM says Oahu’s wildfire risk is rising where development meets wild lands, and that no home is entirely without risk. The National Weather Service issues Fire Weather Watches and Red Flag Warnings. Fire is part of a standard policy, but the Insurance Division lists wildfire among the major risks affecting rates.

What is the state insurer of last resort?

Two state-backed mechanisms exist, and both are narrow:

• Hawaii Hurricane Relief Fund (HHRF). Created in 1993 after Hurricane Iniki, it stopped writing policies on December 1, 2000, and was reactivated in 2024. Under Act 296 of 2025, it now offers hurricane-only, excess commercial coverage to condominium and townhouse associations (AOAOs) that two licensed insurers have denied and whose buildings are insured for more than $10 million. It does not insure individual single-family homes. Individual unit owners should ask their association about the master policy.
• Hawaii Property Insurance Association (HPIA). The Insurance Division says Act 296 expanded HPIA’s powers to cover owners who cannot get homeowners or dwelling fire insurance from private companies. We did not find eligibility terms or prices in the sources we could open, so ask a licensed agent.

How much does insurance cost?

The Insurance Division publishes a yearly sample premium comparison for Oahu, based on a $400,000 dwelling limit, and warns that actual premiums vary by construction, year built, deductible and fire protection class. It also says rising claims costs have raised premiums and reduced the number of insurers willing to write policies. Get several quotes, including hurricane and flood, before you make an offer. See our homeowners insurance guide.

Where to check before you buy

Ask the seller about past flooding and insurance claims; our Hawaii seller disclosure guide explains what sellers must tell you. Then read about buying a home in Honolulu. The Insurance Division takes questions and complaints at 1-844-808-3222.