Climate change insurance costs have risen faster than almost any other household expense over the past decade. Between 2008 and 2024, homeowners insurance premiums climbed 74%, nearly double the 40% increase in home prices during the same period. Behind these numbers: a surge in extreme weather events that is forcing insurers to reprice risk across entire regions.
For property owners, lenders, and risk managers, the question is no longer whether climate change affects insurance. The data already answered that. The real question is how to measure exposure, close coverage gaps, and prepare for what comes next.
How Climate Change Drives Insurance Costs Higher
The link between climate change and rising insurance costs comes down to one variable: claims. As extreme weather events grow more frequent and severe, insurers pay out more. Those costs get passed to policyholders as higher premiums or, in some markets, as outright withdrawal of coverage.
Natural disaster payouts in the United States more than doubled in a decade, rising from $30.8 billion in 2013 to $79.6 billion in 2023. The worst single year on record was 2017, when Hurricanes Harvey, Irma, and Maria pushed insured losses to $116.1 billion. In 2024, NOAA tracked 27 separate weather events that each caused over $1 billion in damage, totaling $182.7 billion.
Secondary perils are adding to the bill. Severe convective storms (hail, tornadoes, straight-line winds) accounted for 41% of U.S. insured losses in recent years, according to Gallagher Re. These smaller but more frequent events are harder to model and spread across wider geographies than hurricanes or earthquakes.
| Year | Billion-Dollar Events | Insured Losses ($B) | Economic Losses ($B) | Protection Gap |
|---|---|---|---|---|
| 2019 | 14 | $25.0 | $45.0 | 44% |
| 2020 | 22 | $67.0 | $100.0 | 33% |
| 2021 | 20 | $78.5 | $152.6 | 49% |
| 2022 | 18 | $98.9 | $165.0 | 40% |
| 2023 | 28 | $79.6 | $93.1 | 15% |
| 2024 | 27 | $154.0 | $417.0 | 63% |
Sources: NOAA NCEI, Gallagher Re, Swiss Re sigma. 2024 figures are preliminary estimates.
Are Insurance Rates Going Up Because of Climate Change?
Yes, and the increases are accelerating. Between 2021 and 2024, the typical U.S. homeowner saw a 24% jump in premiums, far outpacing general inflation. Some states have been hit much harder. Florida homeowners now pay an average of $15,000 per year. After the January 2025 wildfires, California regulators approved a 17% rate increase for State Farm alone.
The rate increases reflect a structural shift. Insurers are not raising prices to pad margins. They are trying to keep pace with actual loss experience. In states where regulators cap rate increases, insurers respond by pulling out of the market entirely, leaving homeowners scrambling for coverage through state-backed residual plans known as FAIR plans.
| Region | Avg. Annual Premium | 3-Year Change | Primary Climate Perils |
|---|---|---|---|
| Southeast (FL, LA, SC) | $8,500-$15,000 | +40-60% | Hurricanes, flooding, wind |
| West (CA, CO, OR) | $2,500-$4,500 | +20-35% | Wildfire, drought |
| Central (TX, OK, KS) | $3,500-$6,000 | +25-40% | Hail, tornadoes, SCS |
| Northeast (NY, NJ, MA) | $2,000-$3,500 | +15-25% | Nor’easters, coastal flooding |
| Midwest (IL, IN, OH) | $1,800-$3,000 | +10-20% | Severe storms, river flooding |
Sources: NAIC, III, state insurance department filings. Ranges reflect variation within each region.
FAIR plan enrollment has doubled since 2018 nationwide. These plans, originally designed as temporary safety nets, are becoming the primary option in high-risk areas. California’s FAIR plan now covers over 400,000 properties, and Louisiana’s Citizens plan is the state’s largest insurer by policy count.
What Standard Insurance Policies Exclude
A standard homeowners policy (HO-3) covers wind, hail, lightning, and fire. It does not cover flooding, earthquakes, or land movement. These exclusions create coverage gaps that widen as climate change increases the frequency of excluded perils.
Flood coverage requires a separate policy, typically through FEMA’s National Flood Insurance Program (NFIP) or a private flood insurer. The NFIP has drawn criticism for relying on outdated flood maps, capping payouts at $250,000 for structures, and running a cumulative deficit exceeding $20 billion.
| Peril | Standard HO-3 Coverage | Separate Policy Needed | Typical Additional Cost |
|---|---|---|---|
| Hurricane wind | Covered (with wind deductible) | No | Included in premium |
| Flood (riverine/coastal) | Not covered | Yes (NFIP or private) | $700-$3,500/year |
| Earthquake | Not covered | Yes | $800-$5,000/year |
| Wildfire | Covered | No (but availability shrinking) | N/A |
| Hail / Tornado | Covered | No | N/A |
| Landslide / Mudflow | Not covered | Limited (via flood policy for mudflow only) | Varies |
The number of uninsured homes in the U.S. more than doubled between 2019 and 2023, with estimates ranging from 7% to 13% of all homes. Many of these gaps concentrate in areas where climate change insurance costs have risen fastest, creating a feedback loop: higher premiums push homeowners to drop coverage, which concentrates risk among those who remain in the pool.
How Insurers Quantify Climate Risk
Insurance pricing depends on risk models. As climate patterns shift, the historical data that traditional actuarial models rely on becomes less predictive. Insurers are increasingly turning to forward-looking tools that simulate thousands of climate scenarios to estimate future losses.
Catastrophe modeling sits at the center of modern insurance pricing. Cat models simulate the physical characteristics of hazards (wind speed, flood depth, ground shaking), calculate damage to exposed buildings using vulnerability curves, and estimate financial losses across a portfolio. The output feeds directly into pricing, reinsurance, and capital allocation decisions.
Key metrics that drive climate change insurance pricing include:
- Probable maximum loss (PML): the worst-case loss an insurer could face from a single event at a given probability level
- Average annual loss (AAL): the expected yearly cost of losses when averaged across all possible events and their probabilities
- Exceedance probability curves: the full distribution of potential losses, showing the probability of exceeding any given loss threshold
- Protection gap analysis: the difference between insured losses and total economic losses from disasters
These metrics require building-level data: construction type, occupancy class, number of stories, first-floor height, and replacement value. FEMA’s HAZUS framework provides depth-damage curves for 33 building types, mapping flood depth to expected damage ratios.
The Protection Gap Problem
The protection gap measures the share of economic losses from natural disasters that are not covered by insurance. Globally, that gap hovers around 60%. In 2024, insured losses reached $154 billion while total economic losses hit $417 billion, leaving a $263 billion gap that fell on governments, businesses, and individuals.
The gap is widest in developing countries, where insurance penetration for natural catastrophes can fall below 5%. But it is growing in developed markets too. In the United States, the number of FAIR plan policies has doubled since 2018 as private insurers retreat from high-risk regions.
Closing the protection gap requires two things: better risk data and more affordable coverage options. Parametric insurance products, which pay out automatically when a predefined trigger is met (like wind speed exceeding 130 mph), are gaining traction because they reduce claims processing costs and settlement delays.
What Property Owners and Risk Managers Can Do
Climate change insurance costs will continue rising. Property owners and portfolio managers who act on data rather than waiting for renewal shocks will be better positioned. Several strategies can help:
1. Know your exposure at the building level. Generic zip-code or county-level risk scores miss critical variation. Two buildings on the same street can face very different flood depths depending on elevation, first-floor height, and proximity to drainage infrastructure. Damage estimation tools that apply HAZUS depth-damage curves to specific building characteristics produce more accurate loss projections than broad averages.
2. Model forward, not backward. Historical loss data understates future risk in a warming climate. Use climate projections (SSP scenarios, RCP pathways) to stress-test your portfolio under 2030, 2050, and 2080 conditions. Continuuiti’s Climate Value at Risk platform runs damage estimation across multiple climate scenarios, giving lenders and asset managers the forward-looking loss metrics that TCFD and ISSB frameworks require.
3. Close coverage gaps before an event. Review exclusions in your current policy. If you are in a flood zone (or a zone that was not historically flood-prone but now sees increased rainfall), add flood coverage. The cost of a flood policy is a fraction of a single uninsured flood claim.
4. Invest in mitigation. Elevating mechanical systems, installing flood barriers, upgrading roofing materials, and maintaining defensible space around structures can reduce both damage and premiums. Some insurers offer premium credits of 5-15% for documented mitigation measures.
Frequently Asked Questions
Is there insurance for climate change?
There is no single climate change insurance policy. Standard homeowners insurance covers some climate-related perils like wind, hail, and wildfire, but excludes others like flooding and earthquakes. Separate flood and earthquake policies are available through FEMA’s NFIP and private insurers. Parametric insurance products that trigger payouts based on measurable weather thresholds are a newer option for businesses and governments.
Why are insurance rates going up so much in 2025 and 2026?
Insurance rates are rising because insured losses from natural disasters have surged. U.S. insured losses reached $154 billion in 2024, up from $25 billion in 2019. Insurers must raise premiums to match actual loss experience. Reinsurance costs (insurance for insurers) have also climbed sharply after consecutive years of high payouts, and those costs flow through to consumer premiums.
What disasters are not covered by homeowners insurance?
Standard homeowners insurance (HO-3) does not cover flooding, earthquakes, landslides, sinkholes, or sewer backup. Flood coverage requires a separate NFIP or private flood policy. Earthquake coverage requires a standalone earthquake policy. These exclusions create significant coverage gaps in areas where climate change is increasing the frequency of these events.
How do insurance companies model climate risk?
Insurers use catastrophe models that simulate thousands of possible disaster scenarios. These models combine hazard data (wind speeds, flood depths, ground shaking), building vulnerability curves (like FEMA’s HAZUS depth-damage functions), exposure data (building locations, values, construction types), and financial terms to estimate the probability distribution of losses. The key output metrics are probable maximum loss (PML), average annual loss (AAL), and exceedance probability curves.
What is the protection gap in insurance?
The protection gap is the difference between total economic losses from natural disasters and the portion covered by insurance. Globally, about 60% of disaster losses are uninsured. In 2024, the gap reached $263 billion ($417 billion in economic losses minus $154 billion in insured losses). The gap is widest in developing countries but growing in developed markets as insurers withdraw from high-risk areas.
The Bottom Line
Climate change insurance costs reflect a measurable increase in disaster frequency and severity. Premiums rose 74% between 2008 and 2024, coverage gaps are widening, and the protection gap hit $263 billion in 2024. For property owners and risk managers, the path forward starts with building-level risk data: understanding which perils affect each location, what damage they can cause, and what coverage gaps exist. The tools to measure and price climate risk at the property level already exist. Using them before the next renewal cycle or weather event is the most direct way to reduce financial exposure.
