Grenaa Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Grenaa is low; mugwort, mold (alternaria), and mold (cladosporium) are low.
Pollen Tomorrow
Tomorrow (11 October 2026) mold (alternaria) remains low, mold (cladosporium) remains low, mugwort no longer expected.
7-Day Trend
Over the next week mugwort, mold (alternaria), and mold (cladosporium) will increase; cypress, grass, and willow will remain stable.
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Pollen Risk
Today - 10 October
| Pollen species | Level | Value |
|---|---|---|
| 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 | 7/100 |
| Mold (Alternaria) | Low | 8/100 |
| Mold (Cladosporium) | Low | 20/100 |
Tomorrow - 11 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| 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) | None | 0/100 | |
| Mold (Alternaria) | Low | 4/100 | |
| Mold (Cladosporium) | Low | 13/100 |
Local Environmental Conditions
Most of the area around the center of Grenaa is built-up land, with a good deal of open grassland and some woodland. Birch, willow and oak are among the allergenic trees nearby. Grasses are a major source, with plantain and mugwort adding to the weed pollen load. Locally, street trees, gardens and lawns supply most pollen in the built-up parts.
Birch, willow and oak lead the season in late spring, as temperatures climb to around 10°C, and tree pollen reaches its peak. Grass pollen follows, peaking in midsummer and easing off by late summer. Plantain and mugwort bring a final peak from late spring into late summer. Rain is heaviest in spring, often giving short breaks from high pollen levels.
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Frequently Asked Questions About Pollen in Midtjylland
Is pollen high in Grenaa right now?
On 10 October 2026, overall pollen levels in Grenaa are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Grenaa tomorrow?
On 11 October 2026, pollen conditions in Grenaa will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Grenaa this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Grenaa?
On 10 October 2026, Artemisia is the dominant pollen source in Grenaa. cypress, grass, and willow are not currently active.
When is pollen season in Grenaa?
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.
Understanding the Scale
The 0–100 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
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Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
