The 10-day span for Arequipa runs from a high near 75° on Thursday down to 40° overnight on Monday. Models drop roughly 0.06 in of precipitation across the stretch — watch Monday (57%). Longer view: a tropical climate — warm all year, with the calendar split into wet and dry rather than hot and cold.
Arequipa, Peru · 16.40°S, 71.54°W · America/Lima · Forecast computed for these exact coordinates