Overview

• The alert runs from September 19 to 21 and covers 20 departments including Lima, Piura, Cusco and Arequipa.
• Peak heat is forecast for Sunday, September 21, with expected maximums of 21–34°C in the northern sierra, 19–29°C in the central sierra and 20–32°C in the southern sierra.
• Senamhi cautions about a significant rise in ultraviolet radiation and afternoon wind gusts near 45 km/h.
• Authorities emphasize the greatest impacts in the sierra after weeks of colder conditions, urging hydration and limited sun exposure.
• Spring in Peru begins Monday, September 22 at 1:19 p.m., following the weekend warm spell.