The cool season runs from late April to mid September, with daily highs reaching an average of 21 °C (70F) and a low of 11 °C (52F) in June. These averages are reached through an alternating weather pattern, with several days with northerly winds and temperatures of around 28 °C (82F) or higher and warm nights over 15 °C (59F) giving way, in a very sudden manner, to cool, rainy weather and temperatures between 10 °C and 15 °C (50F to 59F) for a few days, then to dry, sunny weather and colder nights (around 5 °C, or 41F, and sometimes much lower) and pleasant days in the 15 °C to 20 °C (59F to 68F) range, and a gradual increase in temperatures as winds rotate to the north again.