Hå kommune pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Hå kommune is low; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) mugwort increasing.
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 | 23/100 |
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) | Moderate | 30/100 |
Local Environmental Conditions
Lying on the flat Jæren coastal plain, Hå opens one of Norway's earliest pollen seasons with hazel from January before birch peaks through April and May. Grass from the exceptionally flat and open Jæren farmland peaks strongly through June and July before mugwort extends exposure into September. The flat coastal plain allows pollen to disperse very widely, while the mild Atlantic oceanic climate provides regular rainfall interruptions throughout.
The pollen season in Hå kommune runs its course from February to August, with alder and hazel setting things in motion in February, with birch building to the season's sharpest peak through May. Grass pollen rounds out Hå kommune's season across June and July. With the low, wind-exposed terrain typical of coastal Rogaland, the local climate gives this particular area its own seasonal quirks worth knowing about.
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Frequently Asked Questions About Pollen in Rogaland
Is pollen high in Hå kommune right now?
On 20 September 2026, overall pollen levels in Hå kommune are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Hå kommune tomorrow?
On 21 September 2026, pollen conditions in Hå kommune will be different from today, with artemisia increasing
Is pollen expected to decrease in Hå 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 Hå kommune?
On 20 September 2026, Artemisia is the dominant pollen source in Hå kommune. cypress, grass, and willow are not currently active.
When is pollen season in Hå kommune?
How often is the Hå kommune pollen forecast updated?
The Hå kommune pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Hå 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 Hå 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 Hå 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).
