Climate of Valencia

Valencia and its metropolitan area have a hot-summer Mediterranean climate (Köppen climate classification: "Csa") with mild winters and warm to hot summers. According to Troll-Paffen climate classification, Valencia has a "warm-temperate subtropical" climate ("Warmgemäßigt-subtropisches Zonenklima") and according to Siegmund/Frankenberg climate classification, Valencia has a subtropical climate.
Temperature.
General.
Its average annual temperature is during the day and at night. In the coldest month – January, typically the temperature ranges from during the day and at night. In the warmest month – August, the typically temperature ranges from during the day and about at night. Large fluctuations in temperature are rare.
Seasonal climate.
Winter.
Winters in Valencia are very mild. December, January and February are the coldest months, with average temperatures around during the day and at night. From a few to a dozen days in the winter, the temperature exceeds .
March and November are transitional months, the temperature often exceeds , with average temperatures of around during the day and at night.
Summer.
Summers in Valencia area are warm to hot (in the middle of summer). Generally the warm season lasts about six months, from May to October. Regular temperatures above begin as early as April, although in this month the sea temperature is still cool: about . The summer season ends normally around early October, as this month can see sometimes high temperatures below normally by the end of the month. The sea temperature in November remains mild - about .
July and August are the warmest months, with average temperatures around during the day and at night. In June and September the average temperature is around during the day and at night. In May and October the average temperature is around during the day and at night and in April and November the average temperature is around during the day and at night.
Sunshine.
Sunshine duration is 2,696 hours per year, from 155 - average about 5 hours of sunshine a day in December to 314 - average above 10 hours of sunshine a day in July. This is a bit above average for the southern half of Europe because in this part of the continent, sunshine duration varies from about 2,000 to about 3,000 hours per year. However, this is a 70% larger value than in the northern half of Europe, where sunshine duration is around 1500 hours per year. In winter Valencia has about three times more sun duration than in the northern half of Europe.
Precipitation.
Valencia has on average only 46 precipitation days a year, averaging several rainy days per month (≥ 1 mm), ranging from 1 in July to 5 in October. The average annual precipitation is less than 454 mm (17.87 inches), ranging from 9 mm (0.35 inch) in July to 74 mm (2.91 inch) in October.
Humidity.
Average relative humidity is 65%, ranging from 60% in April to 68% in August.
Daylight.
Valencia enjoys one of the most optimal number of hours of daylight in Europe. Days in winter are not as short as in the northern part of the continent. The average hours of daylight in December, January and February is 10 hours (for comparison: London or Moscow or Warsaw - about 8 hours).
Temperature extremes.
The highest temperature ever recorded during the day in the city centre is on 27 August 2010. On May 14th, 2015 an all-time high of 43º C was again recorded. In the month of August 2003, the average reported daytime maximum temperature was a record (similar to a typical temperature in August of tropical Miami). The coldest temperature ever recorded was on the night of 11 February 1956. Generally, February 1956 was the coldest month in the history of the city (since temperature recording).
Sea temperature.
The average annual temperature of the sea is about . In February, the average sea temperature is . In August, the average sea temperature is . From June to October, average temperature of sea exceed .
Curio.
Valencia has a similar latitude to Madrid. However, the climate of these Spanish cities is very different, as Valencia is located at the seaside; Madrid is located in the approximate middle of the inland plateau. Valencia has much warmer winters (data from January, the coldest month): 
and also Valencia has longer summers and milder temperatures in the middle of summer during the day.