Lisbon enjoys a Subtropical-Mediterranean climate. Amang aw the metropolises in Europe, it heas the warmest winters, wi average temperatures 15 °C (59 °F) durin the day an 8 °C (46 °F) at nicht in the period frae December tae Februar. The typical simmer's saison lasts aboot sax months, frae Mey tae October, although an aa in November, Mairch an Aprile temperatures sometimes reach aroond 20 °C (68.0 °F).