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Vallecas Weather in December
Vallecas, Madrid, Spain
About Vallecas in December
Vallecas sits in a broad valley depression southeast of the city center, where temperature inversions trap cold air and pollution during winter, creating Madrid's most frequent fog events. The southeastern exposure and low elevation make summers brutally hot, with temperatures regularly exceeding the city average by 1–2°C due to the rain shadow effect of the central urban mass.
For detailed monthly temperature and rainfall data for Madrid in December, see the Madrid December weather guide.