Sollentuna pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Sollentuna is none
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week cypress, grass, willow, and mugwort will remain stable.
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Features and forecast availability vary by region.
Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alder (Alnus) | None | 0/100 | — |
| Birch (Betula) | None | 0/100 | — |
| Hazel (Corylus) | None | 0/100 | — |
| Cypress (Cupressaceae) | None | 0/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | |
| Mugwort (Artemisia) | None | 0/100 |
Local Environmental Conditions
Sollentuna relies on spruce, birch, and oak in its parks and green belts as the principal tree pollen sources. Open fields near the surrounding lake and forest district north of the city let grass and crop pollen spread widely whenever conditions are dry and breezy. Sollentuna shows a vegetation pattern typical of Swedish towns its size, driven by nearby countryside rather than commuter residential development.
The pollen calendar in Sollentuna starts in February with alder, followed by a strong birch peak in May. The baton passes to grass pollen by June, carrying the season through July. Sitting close to the surrounding lake and forest district north of the city, Sollentuna sees pollen counts that can rise or fall quickly with changing weather fronts. Late-season pollen owes more to the region's spruce cover and farmland than to any urban source.
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Frequently Asked Questions About Pollen in Stockholm
Is pollen high in Sollentuna right now?
Currently, there is no significant pollen in Sollentuna.
Will pollen levels change in Sollentuna tomorrow?
On 21 September 2026, pollen conditions in Sollentuna will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Sollentuna this week?
According to the five-day outlook, pollen levels are expected to remain relatively stable.
Which pollen types are currently active in Sollentuna?
On 20 September 2026, there are no significant pollen types in Sollentuna.
When is pollen season in Sollentuna?
How often is the Sollentuna pollen forecast updated?
The Sollentuna pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Sollentuna come from nearby or far away?
Studies show that most pollen exposure (often 70–90%) comes from nearby sources, such as local trees and vegetation. A good pollen forecast therefore depends on accurately representing local vegetation. Pollen can travel long distances, but this usually matters only early in the season or during specific wind events.
Are pollen levels in Sollentuna based on measurements or forecasts?
Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.
Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in Sollentuna, modern forecasts combine recent measurements, weather data, and information about local vegetation.
This allows us to estimate pollen levels for today and the coming days, not just report the past.
Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.
Understanding the Scale
The 0–100 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
