Pollen Count in Irun
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Irun, Spain has a Mediterranean climate. Spring and autumn are the main pollen seasons. Trees and plants release pollen into the air.
Updated: 4/20/2026
In spring, from March to May, olive and orange trees produce a lot of pollen. Grasses and weeds also release pollen. The air can look yellow with pollen.
Autumn pollen season is usually less strong. But some plants like plane trees and chenopods release pollen from September to November.
People often stay indoors when pollen counts are high. They close windows and doors to keep pollen out.
Pollen Forecast Chart
Recommendations
When pollen concentrations reach a peak, we suggest these simple steps to help with hay fever. These tips are extra important on windy days when plants are in peak anthesis (the time when they release the most pollen).
- Wear masks if necessary
- Shower after going out
- Wear sunglasses if windy
- Close windows and doors
- Use an indoor air purifier
- Avoid wearing woolen clothes outside
- Limit outdoor activities
Annual Pollen Overview
Check out this month-by-month overview of the daily average pollen count in Irun 🌾. This data is based on previous years and serves as a guideline to help you understand when different pollen seasons typically occur in your city.
| Alder | Birch | Grass | Mugwort | Olive | Ragweed | |
|---|---|---|---|---|---|---|
| Jan | 3.9 | 0 | 0 | 0 | 0 | 0 |
| Feb | 598.5 | 0 | 0.4 | 0 | 0 | 0 |
| Mar | 509.2 | 87.1 | 6.2 | 0 | 0 | 0 |
| Apr | 41.7 | 129.4 | 39.4 | 0 | 0.5 | 0 |
| May | 1.5 | 7.1 | 227.3 | 0 | 44.3 | 0 |
| Jun | 0.2 | 0.4 | 342.4 | 0 | 13.2 | 0 |
| Jul | 0 | 0 | 104.3 | 1.6 | 0.2 | 0 |
| Aug | 0 | 0 | 43.5 | 5 | 0 | 1.9 |
| Sep | 0 | 0 | 7.9 | 6.5 | 0 | 2.5 |
| Oct | 0 | 0 | 2.6 | 2.1 | 0 | 0 |
| Nov | 0 | 0 | 0.3 | 0.8 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(2 km)
(15 km)