Knarvik pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Knarvik is medium; mugwort is medium; cypress and grass are low. Tomorrow (10 August 2026) levels are similar - cypress remains low, mugwort remains medium. Over the following five days cypress, grass, and mugwort will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Knarvik is a small Vestland town in Alver municipality north of Bergen where birch, alder, and fjordside vegetation are the main local pollen sources. The Osterfjord position means onshore winds can periodically disperse pollen, while the very wet Atlantic western Norwegian climate provides very frequent rainfall interruptions and birch peaks through April and May before grass contributes through June and July throughout this Nordhordland coastal community.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    22/100

  • Grass (Poaceae):

    Low

    1/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    47/100

High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.

Tomorrow - 10 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    10/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    38/100

Air quality in Knarvik

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Frequently Asked Questions

Is pollen high in Knarvik right now?

On 9 August 2026, overall pollen levels in Knarvik are moderate. Artemisia is the main contributor to airborne pollen, while cypress and grass remain at lower levels

Will pollen levels change in Knarvik tomorrow?

On 10 August 2026, pollen conditions in Knarvik will be different from today, with artemisia at medium levels, cypress at low levels

Is pollen expected to decrease in Knarvik this week?

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

Which pollen types are currently active in Knarvik?

On 9 August 2026, Artemisia is the dominant pollen source in Knarvik. cypress and grass are also present but at lower levels. hazel and willow are not currently active.

When is pollen season in Knarvik?
Knarvik typically experiences a pollen season that unfolds from March through August, with the first releases of alder and hazel as early as March, followed by a sharp birch peak running through May. Grass follows close behind through the June-July stretch. With the combination of high peaks and deep fjords surrounding Knarvik, the local climate gives the season here a somewhat different character than nearby districts.
How often is the Knarvik pollen forecast updated?

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

Does pollen in Knarvik 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 Knarvik 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 Knarvik, 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.

Want to see pollen forecasts for other cities in Norway?

Check pollen in other popular cities:

Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Knarvik.

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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.