Pollen Count in Ferreiros
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Ferreiros, Portugal has different pollen seasons. Trees release pollen in spring. Olive trees pollinate in May. Eucalyptus trees release pollen in March and April.
Updated: 6/1/2026
Grasses and weeds also release pollen. This happens in late spring and summer. Wildflowers like thistles and dandelions produce pollen. Bees and butterflies visit these flowers.
Pollen counts are usually high in morning. They decrease at night. Rain helps wash pollen away. Sunny days make pollen counts rise.
People stay indoors when pollen counts are high. They keep windows closed. Outdoor activities are less fun during peak pollen seasons.
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 Ferreiros 🌾. 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 | 0.3 | 0 | 0 | 0 | 0 | 0 |
| Feb | 4.4 | 0 | 1.5 | 0 | 0 | 0 |
| Mar | 8.3 | 345.6 | 19 | 0 | 0 | 0 |
| Apr | 0.9 | 136 | 95.6 | 0 | 53.3 | 0 |
| May | 0 | 3.5 | 450.8 | 0 | 137.6 | 0 |
| Jun | 0 | 0 | 377.9 | 0 | 9.6 | 0 |
| Jul | 0 | 0 | 246.1 | 0 | 0.5 | 0 |
| Aug | 0 | 0 | 77.6 | 2.2 | 0 | 0 |
| Sep | 0 | 0 | 11.2 | 1 | 0 | 0 |
| Oct | 0 | 0 | 4.5 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0.2 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(13 km)