Mugwort pollen today
Mugwort pollen is not high anywhere we track today. Season runs July to September, peaking in August.
Mugwort is the main late-summer weed allergen in Europe, running from July into September, long after tree season has finished. It thrives on roadsides and waste ground, so cities often record surprisingly high counts. Ragweed follows a similar late-season pattern and is especially significant in central and eastern Europe.
Season: July to September, peaking in August. Updated September 22, 2026.
Mugwort pollen levels across Europe today
| City | Mugwort today |
|---|---|
| Turin | Moderate |
| Paris | Moderate |
| Lyon | Moderate |
| Milan | Moderate |
| Barcelona | Moderate |
| Marseille | Moderate |
| Budapest | Low |
| Zagreb | Low |
| Vienna | Low |
| Rome | Low |
| Prague | Low |
| Bordeaux | Low |
| Munich | Low |
| Frankfurt | Low |
| Bratislava | Low |
| Zurich | Low |
| Madrid | Low |
| Brussels | Low |
| Porto | Low |
| London | Low |
| Athens | Low |
| Cologne | Low |
| Berlin | Low |
| Amsterdam | Low |
| Stockholm | Low |
| Warsaw | Low |
| Lisbon | Low |
| Manchester | Low |
| Edinburgh | Low |
| Birmingham | Low |
| Hamburg | Low |
| Gothenburg | Low |
Common questions
When is mugwort and ragweed season?
Both run from July into September, peaking in August. Ragweed can persist into October in warmer parts of central Europe.
Why do my symptoms return in late summer?
Weed pollen takes over once grass season ends. Autumn symptoms are frequently mistaken for a cold, because nobody expects hay fever in September.
Does mugwort cross-react with food?
It can. Celery, carrot and some spices may cause mouth symptoms in people sensitive to mugwort.