Peru's San Martín region hits 40.4°C; Senamhi forecasts rains from Oct 18

San Martín, Peru, is experiencing a heatwave with temperatures up to 40.4°C, and Tarapoto recording 37-38°C. Senamhi warns of possible rains starting October 18, which could provide relief but also pose risks. The event underscores regional climate variability and the need for heat-related precautions.