Arendal pollen forecast - today, tomorrow and the week ahead

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

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Arendal's skerry-studded coastal setting favours birch, oak and pine on the rocky islets and shoreline, with the mild southern climate supporting an earlier and slightly longer pollen season than towns further north.

Today - 9 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

    29/100

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):

    None

    0/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    19/100

Air quality in Arendal

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Pollen and air quality along routes in Arendal

Frequently Asked Questions

Is pollen high in Arendal right now?

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

Will pollen levels change in Arendal tomorrow?

On 10 August 2026, pollen conditions in Arendal will be different from today, with artemisia continuing to decline

Is pollen expected to decrease in Arendal this week?

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

Which pollen types are currently active in Arendal?

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

When is pollen season in Arendal?
The pollen season in Arendal runs from February through August, starting with alder and hazel pollen from February, followed by a sharp birch peak that holds through May. Grass pollen rounds out Arendal's season and holds through June and July. With the coastal pine and oak woodland surrounding Arendal, the local climate means the exact timing here can shift a little from year to year.
How often is the Arendal pollen forecast updated?

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

Does pollen in Arendal 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 Arendal 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 Arendal, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Arendal.

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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.