Pollen and allergies — Palermo
Palermo lies on Sicily’s northern coast, in a basin between the sea and the Madonie and Palermo mountain ranges. A Mediterranean climate can bring some flowering earlier than in northern Italy, while sea breezes and windy days can quickly change dispersion across the urban area.
Periods and allergens to watch
- Winter and early spring: alder and birch can appear, although timing depends strongly on temperature.
- Spring: grasses increase in open areas and farmland around the basin.
- Spring and summer: olive is relevant as part of the Mediterranean botanical setting; the site’s forecast remains modeled.
- Summer and autumn: mugwort and ragweed may occur on neglected land and along infrastructure.
Palermo uses CAMS through Open-Meteo. It is modeled, not a local measurement, and the approximately 11 km grid cannot distinguish every valley, slope or neighbourhood. CAMS also shows six species: cypress, parietaria and other Sicilian taxa are not included in this series.
The urban basin is influenced differently by the sea, slopes and roads inland. Breezes and dry days can change dispersion as people move between the centre, outskirts and countryside. The value is therefore more useful as an area trend for planning a day than as an answer about pollen outside one window. Always compare it with observed weather.