Grenaa pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Grenaa is high; mugwort is high; grass is medium; cypress is low. Tomorrow (10 August 2026) levels are similar - mugwort declining. 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.

Get the full experience in the Airmine app.

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.

Grenaa's harbourfront and town centre are shaded by lime and oak, with the wooded Djursland peninsula's mixed forest — beech, oak, and pine — visible from most of the town. Coastal farmland nearby adds grass pollen, carried inland on the Kattegat breeze.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    16/100

  • Grass (Poaceae):

    Medium

    26/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    58/100

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):

    Medium

    36/100

Air quality in Grenaa

View air quality

Frequently Asked Questions

Is pollen high in Grenaa right now?

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

Will pollen levels change in Grenaa tomorrow?

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

Is pollen expected to decrease in Grenaa 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 Grenaa?

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

When is pollen season in Grenaa?
Grenaa's calendar starts with hazel and alder in January, birch peaks through April and May, and grass dominates June and July, the usual East Jutland progression. Sitting on the exposed tip of the Djursland peninsula, the town gets steady Kattegat winds that keep pollen moving through most of the season.
How often is the Grenaa pollen forecast updated?

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

Does pollen in Grenaa 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 Grenaa 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 Grenaa, 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 Denmark?

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 Grenaa.

Get the full experience in the Airmine app.

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.