Pollen Count in Umeå
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Umeå has four main pollen seasons. Tree pollen starts in March. Birch trees make a lot of pollen. It's one of the most common allergens.
Updated: 3/22/2026
Grass pollen season starts in May. It's usually the worst in June. Many people feel bad during this time. Pollen counts are high in open areas.
Weed pollen season begins in July. It's not as bad as tree or grass pollen. Some plants like ragweed produce a lot of pollen.
Late summer has some tree pollen. It's not as much as in spring. Pollen counts go down in September. Winter months have little to no pollen.
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 Umeå 🌾. 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 | 0 | 0 | 0 | 0 | 0 |
| Feb | 0.1 | 0 | 0 | 0 | 0 | 0 |
| Mar | 2.3 | 0.7 | 0 | 0 | 0 | 0 |
| Apr | 12.7 | 310.2 | 0 | 0 | 0 | 0 |
| May | 8 | 3355.3 | 1.1 | 0 | 0 | 0 |
| Jun | 0 | 403.2 | 68.3 | 0.2 | 0 | 0 |
| Jul | 0 | 10.3 | 237 | 71.1 | 0 | 0 |
| Aug | 0 | 0 | 9.8 | 10.1 | 0 | 0 |
| Sep | 0 | 0 | 0.3 | 0 | 0 | 4.5 |
| Oct | 0 | 0 | 0 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |