Pollen count in Oeiras
-
Thursday
🤧
Grass: 192.4 g/m³
Olive: 0.6 g/m³
-
Friday
😩
Birch: 1.3 g/m³
Grass: 293 g/m³
Olive: 107 g/m³
-
Saturday
😩
Birch: 0.6 g/m³
Grass: 768.3 g/m³
Olive: 2038 g/m³
- See our chart for an hourly overview.
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In Oeiras, Portugal, there are three pollen seasons. The first season starts in January and ends in April. It's when trees like olive, birch, and hazel release pollen.
The second season starts in May and ends in August. Grasses like wheat, oats, and barley release pollen. This is the worst season for people who react to pollen.
The third season starts in September and ends in November. Weeds like nettle, sorrel, and dock release pollen. This season is not as bad as the summer.
During these seasons, the air is full of pollen. It's like a fine yellow dust that you can't see.
Chart
Recommendations
When pollen counts are high, we suggest doing these things to help with allergies, especially on windy days when pollen is flying around.
- 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 Oeiras 🌾. 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 | 2 | 0 | 0 | 0 | 0 | 0 |
| Feb | 1.7 | 0 | 0.7 | 0 | 0 | 0 |
| Mar | 0 | 5.1 | 8.3 | 0 | 0 | 0 |
| Apr | 0 | 8.3 | 95.3 | 0 | 161.6 | 0 |
| May | 0 | 0.6 | 183 | 0 | 211.3 | 0 |
| Jun | 0 | 0.1 | 104 | 0 | 8.3 | 0 |
| Jul | 0 | 0 | 33.6 | 0 | 0.4 | 0 |
| Aug | 0 | 0 | 9 | 0.1 | 0 | 0 |
| Sep | 0 | 0 | 2.5 | 0 | 0 | 0.4 |
| Oct | 0 | 0 | 0 | 0.2 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0.5 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |