Winters in Mairena del Aljarafe are mild, with average temperatures ranging from 9°C in January to 13°C in February and November/December. Spring brings a gradual warming trend, with temperatures increasing to an average of 17°C by April and peaking at 21-23°C in May and June. Summers are hot, with average highs often reaching 27-28°C, although temperatures can soar above 40°C on occasion. Autumn is similar to spring, with temperatures gradually cooling as the year comes to a close, averaging around 13-17°C from September to November. Overall, temperature fluctuations throughout the year are moderate, allowing for pleasant outdoor conditions most of the time.