Kleppestø pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (11 September) pollen in Kleppestø is moderate; mugwort is moderate; cypress and grass are low.
Pollen Tomorrow
Tomorrow (12 September 2026) mugwort declining, cypress no longer expected, grass no longer expected.
7-Day Trend
Over the next week cypress will increase; mugwort will decrease; grass and willow will remain stable.
Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset. Airmine's estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily. Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS) team.
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Air Quality
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Pollen Risk
Today - 11 September
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | Low | 7/100 |
| Grass (Poaceae) | Low | 8/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Moderate | 33/100 |
Tomorrow - 12 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
Kleppestø is a small Vestland coastal town in Askøy municipality on the Askøy island near Bergen where birch, alder, and coastal farmland vegetation are the main local pollen sources. The Byfjord island position means onshore winds can periodically disperse pollen, while the very wet Bergen-area Atlantic climate provides very frequent rainfall interruptions and birch peaks through April and May before grass from surrounding Askøy farmland contributes through June and July.
In Kleppestø, the pollen season spans March through August, opening gently with alder and hazel as early as March, before birch pollen takes hold most strongly which carries through May. Grass takes over from there and holds through June and July. With the sheltered inlets and exposed headlands around Kleppestø, the local climate means conditions here can diverge a bit from the textbook national timeline.
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Frequently Asked Questions About Pollen in Vestland
Is pollen high in Kleppestø right now?
On 11 September 2026, overall pollen levels in Kleppestø are moderate. Artemisia is the main contributor to airborne pollen, while cypress and grass remain at lower levels
Will pollen levels change in Kleppestø tomorrow?
On 12 September 2026, pollen conditions in Kleppestø will be different from today, with artemisia continuing to decline
Is pollen expected to decrease in Kleppestø this week?
According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, while cypress pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Kleppestø?
On 11 September 2026, Artemisia is the dominant pollen source in Kleppestø. cypress and grass are also present but at lower levels. willow are not currently active.
When is pollen season in Kleppestø?
How often is the Kleppestø pollen forecast updated?
The Kleppestø pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Kleppestø 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 Kleppestø 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 Kleppestø, 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 exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen exposure is expected to be at or near its highest levels. |
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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).
