Onøya pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Onøya is high; cypress is high; mugwort is low. Tomorrow (10 August 2026) levels are similar. 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.

Get the full experience in the Airmine app.

Download on the App Store Get it on Google Play

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.

Learn more

Onøya is a small Nordland island village in Rødøy municipality on the Helgeland coast where birch, alder, and island farmland vegetation are the main local pollen sources. The Norwegian Sea island position means strong onshore winds frequently disperse pollen, while the subarctic Atlantic climate produces a compressed season with birch peaking through May before grass from surrounding Rødøy farmland contributes through June and July throughout this remote Helgeland island community.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    High

    60/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    25/100

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

    52/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    19/100

Air quality in Onøya

View air quality

Frequently Asked Questions

Is pollen high in Onøya right now?

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

Will pollen levels change in Onøya tomorrow?

On 10 August 2026, pollen conditions in Onøya will be similar to today, with cypress at high levels, artemisia at low levels

Is pollen expected to decrease in Onøya this week?

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

Which pollen types are currently active in Onøya?

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

When is pollen season in Onøya?
Onøya works through a pollen season that begins in March and continues through August, starting with alder and hazel pollen picking up from March, with birch building to the season's sharpest peak and staying strong through June. Grass pollen rounds out Onøya's season through the summer months of June and July. With the strong coastal airflow common to this part of northern Norway, the local climate means the exact timing here can shift a little from year to year.
How often is the Onøya pollen forecast updated?

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

Does pollen in Onøya 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 Onøya 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 Onøya, 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?

Bergen Drammen Fredrikstad Kristiansand Oslo Sandefjord Stavanger Trondheim

Check pollen in other popular cities:

Melton Rio de Janeiro Copenhagen Athens Denpasar Rome Cape Town Barcelona London Los Angeles New York

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 Onøya.

Get the full experience in the Airmine app.

Download on the App Store Get it on Google Play

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.