Gallagher Re Natural Catastrophe and Climate Report: First Half 2025
Rolling Meadows, IL (July 16, 2025) – Following a very active start to 2025 for natural catastrophe activity in the United States, fewer high-cost events in the rest of the world have kept the first six months of the year manageable for governments and the insurance industry globally. Global economic losses reached USD151 billion, the lowest H1 total since 2021, yet still above the 2015-2024 H1 average. Global insured losses climbed to USD84 billion, well above the decadal average of USD54 billion and the highest H1 total since 2011. This was primarily driven by January U.S. wildfires (USD40 billion) and U.S. severe convective storm (SCS) activity (USD32 billion), accounting for 87% of H1 insured losses. Notably, fourteen billion-dollar insured loss events occurred globally, with thirteen in the U.S. and one in APAC, marking the fewest global H1 total since 2019.
Entering the second half of the year, there’s a heightened focus on the Atlantic hurricane season, as we approach peak tropical cyclone season and ENSO-neutral conditions persist. Colorado State University, a collaborative partner with Gallagher Re, forecasts near-average Atlantic hurricane activity, detailed in the full report.
Gallagher Re’s Natural Catastrophe and Climate Report: First Half 2025 report summarizes preliminary global loss totals and major catastrophe events that occurred during the first half of the year. The report includes:
- H1 YTD global loss totals from natural catastrophe events, recap of select major events and the market relevance of why these events matter
- An in-depth analysis of the upcoming Atlantic hurricane season that showcases how studying historical analog years and early season activity may provide clues for the rest of the 2025 season
- A reflection on the 20-year anniversary of the 2005 Atlantic hurricane season and Hurricane Katrina’s impact
- A discussion on the implications of ENSO-neutral conditions as tropical cyclone season looms
About Arthur J. Gallagher & Co.
Arthur J. Gallagher & Co. (NYSE: AJG), a global insurance brokerage, risk management and consulting services firm, is headquartered in Rolling Meadows, Illinois. Gallagher provides these services in approximately 130 countries around the world through its owned operations and a network of correspondent brokers and consultants. For more information, visit www.ajg.com.
SOURCE: Arthur J. Gallagher & Co.
Tags: Arthur J. Gallagher, climate change, Natural Catastrophes, natural disaster losses