Senamhi forecast that daytime temperatures on the Peruvian coast would reach extreme intensity levels of up to 36°C in some sectors. ^[1] The Servicio Nacional de Meteorología e Hidrología (Senamhi) activated a red alert for extreme heat affecting 26 regions in Peru from September 1 to September 3. ^[2] The Servicio Nacional de Meteorología e Hidrología (Senamhi) reported on September 6, 2026, that the ninth cold front is entering Peru and will remain in the territory until September 9, 2026. ^[3] The Servicio Nacional de Meteorología e Hidrología del Perú (SENAMHI) is the official institution in Peru responsible for monitoring, studying, and issuing weather forecasts. ^[4] The National Meteorological Service (SNM) in San Juan issued a heat warning for 72 municipalities in Puerto Rico. ^[5] Senamhi warned that the northern and central jungle regions would experience an increase in daytime temperatures of moderate to strong intensity until September 2, with highs between 31°C and 38°C. ^[6] Specific maximum temperature estimates for September 1 include 29°C to 36°C on the northern coast, 24°C to 26°C on the central coast, and 22°C to 29°C on the southern coast. ^[7] Minimum temperatures in the southern Amazon are predicted to reach values close to 17°C during the event. ^[8] The ninth cold front is expected to cause a drop in both daytime and nighttime temperatures across the affected regions. ^[9] In Lima, the current temperature is 20°C with cloudy skies, a maximum of 22°C, a minimum of 21°C, and 84% humidity. ^[10] On September 1, 2026, the SENAMHI released an updated weather forecast for Lima and other major cities in Peru. ^[11] The heat warning was issued due to high temperatures and elevated humidity levels expected on Wednesday. ^[12]