Stord kommune pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Stord kommune is low; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week mugwort will decrease; cypress, grass, and willow will remain stable.
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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) | Low | 18/100 |
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) | Low | 20/100 |
Local Environmental Conditions
Set on the Sunnhordland island of Stord, this municipality opens the pollen season with hazel and alder from January before birch peaks through April and May. Grass from surrounding island farmland peaks through June and July before mugwort extends exposure into September. The Hardangerfjord approaches island position means onshore winds can frequently disperse pollen, while the mild Atlantic Vestland climate advances the season and provides regular rainfall interruptions throughout.
Stord kommune's seasonal pollen activity plays out between March and August, led in by alder and hazel already by March, with birch soon overtaking as the main source that holds through May. From there, grass pollen continues into the following June and July. With the steep fjord terrain and high rainfall around Stord kommune, the local climate shapes a locally distinct version of the broader Norwegian pollen season.
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Frequently Asked Questions About Pollen in Vestland
Is pollen high in Stord kommune right now?
On 20 September 2026, overall pollen levels in Stord kommune are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Stord kommune tomorrow?
On 21 September 2026, pollen conditions in Stord kommune will be similar to today, with artemisia at low levels
Is pollen expected to decrease in Stord kommune this week?
According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Stord kommune?
On 20 September 2026, Artemisia is the dominant pollen source in Stord kommune. cypress, grass, and willow are not currently active.
When is pollen season in Stord kommune?
How often is the Stord kommune pollen forecast updated?
The Stord kommune pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Stord kommune 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 Stord kommune 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 Stord kommune, 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).
