Winter Storms risk in Hawaii

You're buying a house in Kailua-Kona. The inspection mentions a weathered roof. Your agent waves it off—it never snows here. And they're right. But if that same house sat 30 miles east and 6,000 feet up the slope of Mauna Kea, the conversation would change.

Hawaii gets a level 1 winter storm risk rating from us. That's the lowest. For most homes on Oahu, Kauai, or the leeward coasts of Maui and the Big Island, winter weather means heavy rain and wind, not snow. But "level 1" doesn't mean zero. It means the risk is concentrated in specific places and specific conditions.

Who this hits hardest

If you own a home above 6,000 feet on Mauna Kea or Mauna Loa in Hawaii County, you already know about snow. It falls almost every winter up there. Haleakala on Maui gets it too. Those are the only places in the state where you might actually shovel a driveway. But the bigger risk for most homeowners is water. Winter storms in Hawaii often bring kona lows—slow-moving low-pressure systems that dump rain for days. That means flooding on the windward sides of all islands: Hilo, Hamakua Coast, windward Oahu, and the north shore of Kauai.

Also hit hard: older homes with single-wall construction or rusty roofing nails. A heavy rain can find every weak spot. And if you live in a flood zone, whether you're in Honolulu County or Kauai County, winter rain can be your biggest threat.

After the event — claims and repairs

Once the storm passes, the first thing you do is take photos. Before you clean up, before you call anyone. Your insurer will want them. Then call your agent. Here's the insurance reality in Hawaii: wind damage is typically covered by your standard homeowners policy. Flood damage is not. If a winter storm blows off shingles, you're likely fine. If water rises from the ground and soaks your floors, you need a separate flood policy—either through NFIP or a private insurer. And if the ground shakes during a storm and cracks your foundation, that's earthquake damage, which is almost always excluded unless you bought a separate policy.

After a snow event on the Big Island, claims are rare. Adjusters may not be familiar with snow load damage. Be patient, but keep pushing. For repairs, get at least three bids. After any storm, out-of-state contractors show up. Some are fine. Some aren't. Check licenses with the state.

Before the season starts

Winter storm season in Hawaii runs roughly November through March. That's when kona lows and cold fronts are most common. You don't need a snow shovel in Honolulu. But you do need a plan.

First, check your roof. Look for loose shingles, rusted flashing, or sagging gutters. Clear them. Second, walk your property after a heavy rain. Where does water pool? That's where it will pool again. Third, trim trees near power lines. Fourth, build a basic emergency kit: water, food, batteries, radio, medications. If you're at elevation, add blankets and a way to stay warm if the power goes out. For local alerts, bookmark the Hawaii Emergency Management Agency page.

If you only do one thing: review your insurance policy for flood coverage. Most Hawaii homeowners don't have it. If you're in a flood zone, your mortgage lender probably requires it. If you're not, it's still worth a quote. Winter storms here are water events more than snow events.

Questions we get

Does homeowners insurance in Hawaii cover winter storm damage?

Yes, for wind and sudden damage from snow or ice. But flood damage is excluded. If a winter storm causes water to rise and enter your home, you need a separate flood policy. Read your exclusions page.

What should I do if snow damages my roof on Mauna Kea?

Treat it like any other storm claim: document the damage, call your insurer, and get repair estimates. Snow claims are rare in Hawaii, so your adjuster might need extra time to understand the cause. Keep all receipts for emergency repairs.

Is flood insurance required for winter storms in Hawaii?

Not by state law, but your mortgage lender will require it if you're in a FEMA-designated Special Flood Hazard Area. Many winter storm losses in Hawaii come from flooding, not snow. Even if you're not in a high-risk zone, consider a policy. A surprising number of flood claims come from moderate-risk areas.

Official sources

• Hawaii Emergency Management Agency
• NWS Winter Weather Safety
• Ready.gov – Winter Weather
• CDC – Winter Weather