Pollen Count in Viseu
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Friday
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Saturday
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Sunday
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- See our chart for an hourly overview.
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Viseu, Portugal has different pollen seasons. Trees, grasses, and weeds release pollen. Pollen comes out at different times. Spring and summer are the main pollen times.
Tree pollen starts in February. It peaks in March and April. Many trees release pollen then. Oak, pine, and cedar trees are big pollen releasers.
Grasses release pollen in May and June. Weeds release pollen in summer and autumn. Some plants release pollen in winter. Olive trees are a big pollen source.
Pollen counts are usually high in morning and evening. Weather affects pollen counts. Rain helps, but sunny days make pollen counts go up.
Pollen Forecast 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 Viseu 🌾. 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 | 3.1 | 0 | 1.3 | 0 | 0 | 0 |
| Mar | 0.1 | 90.2 | 12.5 | 0 | 0 | 0 |
| Apr | 0 | 59.5 | 128.6 | 0 | 56.6 | 0 |
| May | 0 | 1.4 | 448.5 | 0 | 285.2 | 0 |
| Jun | 0 | 0 | 363.2 | 0 | 24.2 | 0 |
| Jul | 0 | 0 | 147.7 | 0 | 1 | 0 |
| Aug | 0 | 0 | 56.5 | 1.8 | 0 | 0.3 |
| Sep | 0 | 0 | 10 | 0.7 | 0 | 0.7 |
| Oct | 0 | 0 | 0.2 | 0.1 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0.6 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |