The strongest El Niño in living memory is developing as reinsurance pricing hits multi-year lows - and the sequential loss implications extend well beyond a single season.
Prof Adam Scaife, head of long-range forecasting at the UK Met Office, says he has never seen a signal this intense. He described the event as without precedent in the agency's forecasts, the BBC reported. Pacific sea surface temperatures are already more than 2°C above the long-term average, with Met Office models projecting anomalies above 3°C later in 2026 - exceeding anything in records going back to 1950.
The insurance implication runs beyond an active weather season. The Met Office told the BBC that 2027 is "very likely" to replace 2024 as the hottest year on record globally. Heat stored in the ocean releases into the atmosphere in the months following an El Niño peak. A record-warm year arriving into a softened market poses a direct question for underwriters and reinsurers about current pricing adequacy.
The loss pathways run in multiple directions. Atlantic hurricane suppression is one effect of El Niño conditions, widely cited by reinsurers as a tailwind in the softened market. But Pacific basin cyclone activity tends to rise in parallel, and a below-average monsoon is already running across South Asia, the BBC noted. The World Meteorological Organization (WMO) has flagged drought probabilities above 50% for parts of India, Southeast Asia, and the Horn of Africa.
Property catastrophe reinsurance rates fell 16% at the July 2026 midyear renewal, up from a 12% decline at the January 2026 renewal, as five consecutive quarters of below-average losses deepened pricing pressure. A record-intensity El Niño arriving into that environment tests whether the conditions underpinning recent pricing declines remain intact.
For agricultural underwriters and brokers placing crop cover in Asia-Pacific and emerging markets, the exposure arrives on top of soils already under stress. A deficient monsoon suppresses rice and maize yields across countries accounting for a substantial share of global production. During the 1997-98 El Niño, approximately 15 million tonnes of rice were lost across Southeast Asia, according to Blooming Global, a climate risk analysis firm.
Torolf Hamm, WTW's global head of climate physical risks, has argued that catastrophe models were built to aggregate property exposures rather than capture how disruption travels through interconnected supply chains. Direct physical damage may be well-priced. Secondary impacts - disrupted logistics, food price inflation, agricultural income collapse - are harder to model. That gap matters most when one climate signal simultaneously stresses perils across multiple geographies.
For the UK specifically, the BBC reported that the Met Office warns of elevated risk of wet, stormy conditions in autumn and early winter. That adds to a domestic property sector already under pressure after record subsidence payouts.
Gallagher Re chief science officer Steve Bowen said the emergence of El Niño "may not bring record-breaking losses, but the societal implications are considerable." Ongoing oceanic warming, he added, "will only further influence how risk develops across different regions of the world." Whether or not a single record event materialises, the compounding of this El Niño with already-elevated global temperatures is a combination the market has not previously had to price.
