Pollen Count in Colos
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Colos, Portugal has different pollen seasons. Trees release pollen in spring. Olive and almond trees are common. They make a lot of pollen.
Updated: 2/22/2026
Grass pollen is in the air during late spring and early summer. Grasses grow in many areas. They release pollen too.
Weeds also make pollen. They grow in fields and along roads. Their pollen season is usually late summer.
People notice more pollen in the air during these times. Windows and cars get a yellow dust. It's hard to breathe outside.
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 Colos 🌾. 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 | 8.9 | 0 | 0 | 0 | 0 | 0 |
| Feb | 2.1 | 0 | 0.4 | 0 | 0 | 0 |
| Mar | 0.2 | 6.4 | 9.2 | 0 | 0 | 0 |
| Apr | 0.1 | 10.7 | 102.3 | 0 | 386.1 | 0 |
| May | 0 | 0.6 | 370 | 0 | 948.3 | 0 |
| Jun | 0 | 0 | 262 | 0 | 45.5 | 0 |
| Jul | 0 | 0 | 85.9 | 0 | 0.6 | 0 |
| Aug | 0 | 0 | 25.6 | 0.3 | 0 | 0 |
| Sep | 0 | 0 | 4 | 0.2 | 0 | 0.8 |
| Oct | 0 | 0 | 0 | 0.1 | 0 | 0 |
| Nov | 0 | 0 | 0 | 1.1 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(24 km)