Mosjøen pollen forecast - today, tomorrow and the week ahead

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

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Mosjøen is a small Nordland town in Vefsn municipality at the head of the Vefsnfjord where birch, alder, and fjord valley woodland are the main local pollen sources. The enclosed fjord head valley concentrates pollen under calm conditions, while the subarctic Atlantic climate provides regular rainfall interruptions and birch peaks through May before grass from surrounding Vefsn farmland contributes through June and July throughout this Nordland regional centre.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    High

    70/100

  • Grass (Poaceae):

    Low

    15/100

  • Willow (Salicaceae):

    Low

    3/100

  • Mugwort (Artemisia):

    Low

    15/100

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):

    High

    67/100

  • Grass (Poaceae):

    Low

    6/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    9/100

Air quality in Mosjøen

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Frequently Asked Questions

Is pollen high in Mosjøen right now?

On 9 August 2026, overall pollen levels in Mosjøen are high. Cypress is the main contributor to airborne pollen, while grass, willow, and artemisia remain at lower levels

Will pollen levels change in Mosjøen tomorrow?

On 10 August 2026, pollen conditions in Mosjøen will be different from today, with grass at low levels, artemisia at low levels, cypress at high levels

Is pollen expected to decrease in Mosjøen this week?

According to the five-day outlook, cypress pollen levels are expected to gradually decrease, while grass, willow, and artemisia pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in Mosjøen?

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

When is pollen season in Mosjøen?
Mosjøen works through a pollen season that stretches from March through August, kicking off with alder and hazel picking up from March, before birch pollen takes hold most strongly before easing after June. Grass takes over from there across June and July. With the changeable coastal weather systems typical of this stretch of Nordland, the local climate means the exact timing here can shift a little from year to year.
How often is the Mosjøen pollen forecast updated?

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

Does pollen in Mosjøen 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 Mosjøen 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 Mosjøen, 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 Mosjøen.

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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.