Check the pollen forecast for Ostalaria de Les-Val de Aran, Colegio de Check the pollen concentration in your municipality for the next 4 days
today 12 Dec tomorrow 13 Dec Sunday 14 Dec Monday 15 Dec Very Low Very Low Very Low Very Low Birch Very Low Very Low Very Low Very Low Grass Very Low Very Low Very Low Very Low Mugwort Very Low Very Low Very Low Very Low Olive Very Low Very Low Very Low Very Low Ragweed Very Low Very Low Very Low Very Low Source: Copernicus | Last updated: 12/12/2025 00:00 Check the pollen concentration levels across the country