Caen Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Caen is low; mold (alternaria) and mold (cladosporium) are low.
Pollen Tomorrow
Tomorrow (11 October 2026) mold (alternaria) remains low, mold (cladosporium) remains low, mugwort at low levels.
7-Day Trend
Over the next week mugwort will increase; mold (alternaria) and mold (cladosporium) will decrease; 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) | None | 0/100 |
| Mold (Alternaria) | Low | 7/100 |
| Mold (Cladosporium) | Low | 19/100 |
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) | Low | 12/100 | |
| Mold (Alternaria) | Low | 7/100 | |
| Mold (Cladosporium) | Low | 19/100 |
Local Environmental Conditions
The center of Caen is surrounded mainly by built-up land, with some woodland and open grassland. With the Orne River nearby, riverside trees such as willow, poplar and alder along its banks contribute to the local mix. The allergenic tree mix nearby includes maple, hazel and ash. Beyond the trees, grasses matter a great deal, and plantain and pigweed are the main weed sources.
First to flower is hazel, in late winter. Maple and ash follow in early spring, as temperatures climb to around 10°C, and tree pollen reaches its peak. Grasses take over in early summer, with temperatures around 20°C, and their pollen lingers into late summer. The season closes with plantain and pigweed from late spring into early fall. By early winter, pollen levels are low again.
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Frequently Asked Questions About Pollen in Normandie
Is pollen high in Caen right now?
Currently, there is no significant pollen in Caen.
Will pollen levels change in Caen tomorrow?
On 11 October 2026, pollen conditions in Caen will be different from today, with artemisia at low levels
Is pollen expected to decrease in Caen this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Caen?
On 10 October 2026, there are no significant pollen types in Caen.
When is pollen season in Caen?
How often is the Caen pollen forecast updated?
The Caen pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Caen 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 Caen 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 Caen, 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. |
Get More in the Airmine Pollen app
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).
