Sullana's climate is characterized by high temperatures throughout the year, with average highs often reaching above 30°C. The warmest months are February and March, with averages around 29°C, while May and June bring slightly cooler temperatures averaging around 25-26°C. July and August are the coolest months, but still relatively mild, with averages ranging from 16 to 32°C. The temperature drops to its lowest in April, although it's not cold by most standards, averaging 28°C. Overall, Sullana has a warm subtropical climate, with minimal seasonal variation.