Rotnes pollen forecast - today, tomorrow and the week ahead

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

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Rotnes is a small Akershus village in Nittedal municipality in the Nitelva valley where birch, hazel, and valley woodland are the main local pollen sources. The Nitelva valley concentrates pollen under calm conditions, while the relatively dry southeastern Norwegian climate means fewer rainfall interruptions than in western Norway and birch peaks through April and May before grass contributes through June and July and mugwort extends into September throughout this Oslo northern suburb.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Medium

    26/100

  • Grass (Poaceae):

    Low

    8/100

  • 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):

    Medium

    26/100

  • Grass (Poaceae):

    Low

    8/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    50/100

Air quality in Rotnes

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Frequently Asked Questions

Is pollen high in Rotnes right now?

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

Will pollen levels change in Rotnes tomorrow?

On 10 August 2026, pollen conditions in Rotnes will be similar to today, with artemisia at medium levels, cypress at medium levels, grass at low levels

Is pollen expected to decrease in Rotnes this week?

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

Which pollen types are currently active in Rotnes?

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

When is pollen season in Rotnes?
Rotnes sees its pollen season plays out between February and August, with alder and hazel marking the early stage from about February, then birch dominates with a pronounced peak lasting through May. Grass follows over June and July. With the mix of urban and agricultural land typical of greater Oslo, the local climate makes the season feel a little different here than the national average suggests.
How often is the Rotnes pollen forecast updated?

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

Does pollen in Rotnes 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 Rotnes 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 Rotnes, 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:

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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 Rotnes.

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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.