Valencia has a subtropical climate on the borderline of the Mediterranean climate (Köppen climate classification Csa) and semi-arid climate (BSk), with very mild winters and long warm to hot summers.
Its average annual temperature is 22.3 °C (72.1 °F) during the day and 13.4 °C (56.1 °F) at night. In the coldest month - January - the maximum temperature typically during the day ranges from 10 to 20 °C (50 to 68 °F), the minimum temperature typically at night ranges from 2 to 12 °C (36 to 54 °F) and the average sea temperature is 14 °C (57 °F). In the warmest month - August - the temperature during the day typically ranges from 28–34 °C (82–93 °F), about 23 °C (73 °F) at night and the average sea temperature is 26 °C (79 °F). Generally, summer temperatures similar to those experienced in northern part of Europe last about 8 months, from April to November. March is transitional; the temperature often exceeds 20 °C (68 °F), with an average temperature of 19 °C (66 °F) during the day and 9 °C (48 °F) at night. December, January and February are the coldest months, with average temperatures around 17 °C (63 °F) during the day and 8 °C (46 °F) at night.
Sunshine duration hours are 2,660 per year, from 150 (average nearly 5 hours of sunshine duration at day) in December to 314 (average above 10 hours of sunshine duration at day) in July. Average annual temperature of the sea is 18.5 °C (65.3 °F). Average relative humidity is 60% in April to 68% in August