Málaga experiences the warmest winters of any European city with a population over 500,000. The average temperature during the day in the period December through February is . During the winter, the Málaga Mountains ("Montes de Málaga") block out the cold weather from the north. Generally, the summer season lasts about eight months, from April to November, although in the remaining four months temperatures sometimes surpass . Its average annual temperature is during the day and at night. In the coldest month, January, the temperature ranges from during the day, at night and the average sea temperature is . In the warmest month, August, the temperature ranges from during the day, above at night and the average sea temperature is .