Climate of Madrid

[4] Late Spring, in the months of May and June, is witness to the peak of pollinization of Gramineae, the main culprit behind rhinitis and bronchial asthma in Madrid.

Years with high concentrations have proven a public health issue, with punctual cases of asthma epidemics among the inhabitants of Madrid in the aforementioned months.

It is also slightly above average for the southern half of Europe, where annual sunshine duration typically varies from about 2,000 to about 3,000 hours per year.

[citation needed] Madrid has the second highest UV value among continental European capitals after Athens[12] and Lisbon.

[13] The values are close to that of Pittsburgh, Pennsylvania as ultraviolet radiation suffers little interference from other geographic variables.

Sunrise and sunset occur relatively late compared to other countries in southern Europe or even slightly higher latitudes.