Between 16–22 November 2025, central Vietnam was struck by record-breaking rainfall, triggering widespread flooding, flash floods, and numerous landslides across the provinces from Quảng Trị to Đắk Lắk. According to national authorities and disaster-management agencies, as of late November the death toll reached hundreds of people, with additional individuals reported missing, across the most affected provinces. Rainfall totals in some central provinces — especially in the south-central region — exceeded anything observed over the last 50 years. More than 200,000 houses were flooded and tens of thousands of hectares of crops destroyed. Roads, rail lines, and infrastructure were severely damaged or washed away; entire communities were cut off, and relief efforts had to rely on boats and helicopters for evacuations and aid delivery. 

ClimaMeter found thatmeteorological conditions leading to the November 2025 floods in Vietnam are up to 9 mm/day (up to 15% wetter) compared to similar past events. We interpret this as an event driven by exceptional meteorological conditions whose characteristics can mostly be ascribed to human driven climate change. The ongoing deforestation of some of the most affected regions has likely contributed to exacerbating the impacts of the exceptional rainfall. 

Photograph: Nhac Nguyen/AFP/Getty Images

In October 2025, Hurricane Melissa underwent rapid intensification in the Caribbean Sea, reaching Category 5 strength and threatening Jamaica and other Caribbean countries with torrential rainfall, hurricane-force winds, and widespread coastal flooding. Three people have already died in Jamaica. On the Guantanamo coast of Cuba and in parts of Haiti, officials ordered mass evacuations ahead of the storm, with emergency response units mobilized for rescue operations. 

ClimaMeter found that cyclones similar to Hurricane Melissa are around 0.5 °C warmer, up to 14 mm/day (10%) wetter, and up to 8 km/h (up to 10% windier) in the present compared to the past. This contributes to more extreme rainfall and flooding risks, in urban areas like Kingston. We interpret the increased precipitation and stronger winds associated with Hurricane Melissa as being amplified by human-driven climate change, while natural variability played an important role in modulating the storm’s development and trajectory.

Image Credits: Hurricane Melissa Sat Image CSU-CIRA/RAMMB/NOAA

Storm Amy was the first named storm of the 2025/26 UK–Ireland season and developed rapidly in the North Atlantic from the remnants of Hurricanes Humberto and Imelda interacting with the jet stream. The system moved eastward and affected the UK and Ireland between 3–4 October 2025, bringing widespread strong winds and heavy rainfall. Forecast models accurately anticipated its intensity, with peak gusts of 96 mph (155 km/h) recorded on Tiree and a central pressure of 947.9 hPa in Shetland—setting a new UK October record. The storm caused extensive travel disruption, power outages, and coastal impacts, particularly across Scotland, northern England, and Ireland. Western and northwestern Ireland experienced the most severe conditions, with red and orange warnings issued and one fatality reported in County Donegal. Amy’s impacts extended to parts of continental Europe, including Norway, Sweden, Belgium, and northern France, where strong gusts led to two additional fatalities and orange-level alerts.

ClimaMeter found that storms similar to Amy are 2hPa deeper, up to 3 mm/day (10%) wetter, and windier by up to 4 km/h (10%) in the present compared to the past. We interpret Storm Amy as an event of very rare meteorological conditions for which natural climate variability played a role.

Image: Yachts blown ashore onto rocks near Strachur in Argyll (BBC)