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An event attribution study by World Weather Attribution found that human-induced climate change, primarily from fossil fuel combustion and deforestation, has increased the intensity of 30-day maximum rainfall in northern Pakistan by approximately 15%. The study highlights that while the event had a return period of about five years, the resulting high death toll—300 fatalities nationwide as of August 3, 2025, including 140 children—was exacerbated by rapid urbanization, informal settlements, and poor building code enforcement. The report emphasizes a significant funding gap for adaptation, noting that Pakistan requires US$152 billion for adaptation between 2023 and 2030, much of which remains unfinanced.

The study analyzed rainfall events in Colombia and Venezuela, finding that the June 2025 floods were not meteorologically extreme, with return periods of 10 and 3 years respectively. While some data suggests a slight decrease in rainfall likelihood and intensity in a cooler climate, high uncertainty remains due to model disagreement and a lack of high-quality in-situ weather data in northern South America. The report emphasizes that vulnerability is exacerbated by informal urbanization, deforestation, and socio-economic instability, necessitating increased investment in weather monitoring and climate resilience to manage both droughts and intense downpours.

An attribution study of heavy rainfall in coastal New South Wales from May 19-22, 2025, found mixed results regarding the influence of climate change. While observational data suggests a doubling in likelihood for the wettest four-day annual event in a 1.3°C warmer climate, climate models show substantial disagreement on rainfall trends for the region. The study emphasizes the need for flexible adaptation strategies due to this uncertainty.

The 2022 rainy season in West Africa saw above-average rainfall and devastating floods, particularly in Nigeria and Niger, where fatalities reached at least 612 and 195 respectively. An attribution study found that climate change made the seasonal rainfall over the Lake Chad region approximately 80 times more likely and 20% more intense, while the 7-day maximum rainfall over the lower Niger Basin became about twice as likely and 5% more intense. Beyond climate change, the flooding was driven by the release of the Lagdo Dam in Cameroon and exacerbated by high poverty rates, political instability, and the location of infrastructure and settlements on flood plains.

The 2022 monsoon rainfall in Pakistan, particularly in Sindh and Balochistan, resulted in catastrophic flooding that affected over 33 million people and caused damages likely exceeding US$30 billion. Attribution analysis indicates that 5-day maximum rainfall in Sindh and Balochistan is now approximately 75% more intense than it would have been without a 1.2C warming, while 60-day rain across the Indus basin is about 50% more intense. While high regional variability and model discrepancies make exact quantification of the human-induced role difficult, most models and observations show that intense rainfall has increased as Pakistan warmed, with future projections suggesting further significant increases in rainfall intensity at 2 °C of warming.