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 08 Sep	tomorrow 09 Sep	Thursday 10 Sep	Friday 11 Sep
	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	Low	Low	Low	Low
Olive	Very Low	Very Low	Very Low	Very Low
Ragweed	Very Low	Very Low	Low	Very Low

Source: Copernicus | Last updated: 08/09/2026 00:00