Pollen Count in Woerden

• Wednesday 😩
  Grass: 1036.7 g/m³
  Mugwort: 26.9 g/m³
  
• Thursday 😩
  Grass: 627.5 g/m³
  Mugwort: 22.9 g/m³
  
• Friday 😩
  Grass: 1354.7 g/m³
  Mugwort: 51 g/m³
  
• See our chart for an hourly overview.

• 4-Day Chart
• Annual Overview

In Woerden, The Netherlands, pollen seasons start in March. This is when trees start to bloom. Alder, hazel, and oak trees release pollen. It's not much, but it's the start.

In April, more trees bloom. Willows, birch, and beeches release pollen. This is the peak pollen season. There's a lot of pollen in the air.

In May, grasses and meadows bloom. They release a lot of pollen. This is another peak pollen season. It's almost the end of pollen season.

In June, pollen seasons almost end. Only a few plants release pollen. The air is cleaner, and pollen counts go down. It's almost summer!