Sollefteå pollen forecast - today, tomorrow and the week ahead

On 16 July 2026, overall pollen levels in Sollefteå are high. Cypress is the main contributor to airborne pollen, while grass and artemisia remain at lower levels

On 17 July 2026, pollen conditions in Sollefteå will be different from today, with cypress at high levels and grass continuing to decline

According to the five-day outlook, artemisia, cypress, and grass pollen levels will increase later in the week.

On 16 July 2026, Cypress is the dominant pollen source in Sollefteå. grass and artemisia are also present but at lower levels. birch, hazel, willow, and alder are not currently active.

Sollefteå's pollen season is compressed, running from March through September, with alder and birch arriving later than in southern Sweden but peaking more intensely over a shorter window. Grass pollen picks up the baton from birch, running through most of June and July. Sollefteå's location relative to the Ångermanälven river valley means daily pollen readings can swing with changes in wind direction. Hydropower and forestry in the area matters little for pollen; it is the spruce forest and farmland belt that extends the season.

The Sollefteå pollen forecast is updated four times daily. See the timestamp below for the most recent update.

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.

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 Sollefteå, 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.