Overview

• Senamhi reports the cold-air event entering between October 7 and 9, bringing moderate to strong rains and thunderstorms across the central and southern Amazon.
• Indeci’s Bulletin No. 354-2025 forecasts moderate to strong precipitation from October 8 to 10 in Lima and 14 regions, with hail above 2,800 m and snow above 3,900 m in the sierra.
• Yellow alerts are active for Cusco, Madre de Dios, Puno and Ucayali, with projected rainfall up to about 40 mm/day in the central jungle and up to 60 mm/day in southern sectors.
• Wind gusts near 45 km/h and nighttime lows around 17–19 °C are expected, heightening cold, humidity and the potential for soil saturation.
• Authorities urge preventive measures such as reinforcing roofs, avoiding riverbanks and quebradas, limiting outdoor activity during storms, and coordinating through COER and COEL.