Campo Mourao experiences a mild climate with temperatures gradually warming up towards the end of the year. Winters are cool, with average highs ranging from 7-13°C in May and June. Spring brings moderate temperatures, peaking at around 32°C in September and October. Summer months, December to February, are warm, with high temperatures often reaching above 35°C. Autumn months, March to November, offer pleasant temperatures, with averages rarely dropping below 18°C.