You have asked us why some areas of Spain have more or less hours of sunshine throughout the day. It is a question with a relatively simple and easy to understand answer. We tell you.

In May, researcher Dominic Royé shared On twitter an Iberian peninsula split in two depending on whether there had been more or less sunshine than usual in the previous month. This tweet allows us to clarify the doubt about why some areas have more hours of sunshine or less. Does it have to see the latitude? The answer lies only in the clouds.

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All points on the planet theoretically have the same hours of sunshine without clouds, although irregularly distributed according to their latitude, explains meteorologist Benito Fuentes. It is a greater or lesser cloudiness that dictates the number of hours of sunshine throughout a full year. “It is understood that the percentage of hours [de sol] it is the percentage in which it is not cloudy”, he concludes.

When we get out of the annual calculationin the hours of sun yes it influences the length of the day according to the seasons In addition to, of course, the cloudiness, the AEMET highlights: “The climate in the Iberian Peninsula and due to the climatic conditions is usually very little cloudiness in summer, which leads to a notable increase in hours of sunshine at this time. In spring, with the same duration of the day, the hours of sunshine are less due to the greater cloudiness typical of spring. Autumn and winter, with a similar length of day, depends on the cloudiness”. In this link you can see a atlas of solar radiation in Spain carried out by the AEMET.

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