Bergen pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Bergen is low; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week cypress and mugwort will increase; grass and willow will remain stable.
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Local pollen and air quality forecasts, interactive pollen maps and route profiles
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) | Low | 1/100 |
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 | 2/100 |
Local Environmental Conditions
Bergen's coastal setting on the Vestland fjords features birch, alder, and pine as the main tree pollen sources in parks and along streets, with exposure varying between green areas and the more built-up city centre. Surrounding Norwegian coastal woodland and the surrounding fjord valley farmland contribute additional tree and grass pollen, while the very high rainfall of the Bergen coast provides frequent interruptions to exposure throughout the season.
The annual pollen season around Bergen extends from March all the way through August, with alder and hazel arriving first beginning in March, followed by a sharp birch peak which carries through May. Grass pollen extends the season across June and July. With the dramatic mountain-and-fjord setting around Bergen, the local climate means conditions here can diverge a bit from the textbook national timeline.
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Resource Hub
Popular Local Routes 15 routes
Local parkruns 1 parkrun
Local events 6 events
Frequently Asked Questions About Pollen in Vestland
Is pollen high in Bergen right now?
On 20 September 2026, overall pollen levels in Bergen are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Bergen tomorrow?
On 21 September 2026, pollen conditions in Bergen will be similar to today, with artemisia at low levels
Is pollen expected to decrease in Bergen this week?
According to the five-day outlook, artemisia and cypress pollen levels will increase later in the week.
Which pollen types are currently active in Bergen?
On 20 September 2026, Artemisia is the dominant pollen source in Bergen. cypress, grass, and willow are not currently active.
When is pollen season in Bergen?
How often is the Bergen pollen forecast updated?
The Bergen pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Bergen 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 Bergen 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 Bergen, 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).
