Beauvais pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Beauvais is moderate; mugwort is moderate.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week mugwort will increase; cypress, grass, and willow will remain stable.
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Features and forecast availability vary by region.
Pollen Risk
Today - 20 September
| 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) | Moderate | 34/100 |
Tomorrow - 21 September
| 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) | Moderate | 29/100 |
Local Environmental Conditions
Beauvais' Thérain River corridor and surrounding agricultural green spaces feature oak, birch, and linden as the main tree pollen sources, with exposure varying between these areas and the more built-up city centre. Surrounding Picardy farmland and the flat, open landscape contribute substantial grass and crop pollen, while the Thérain valley channels airflows and concentrates pollen across the historic Gothic city under prevailing westerly winds.
Beauvais' flat Picardy landscape allows pollen from surrounding farmland to disperse widely across the historic Gothic city. Hazel and alder open from January before birch peaks through April, with oak and ash following through May. Grass and crop pollen from the surrounding agricultural landscape peaks through June and July, while frequent Atlantic rainfall from the Thérain valley provides regular interruptions throughout.
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Frequently Asked Questions About Pollen in Hauts-de-France
Is pollen high in Beauvais right now?
On 20 September 2026, overall pollen levels in Beauvais are moderate. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Beauvais tomorrow?
On 21 September 2026, pollen conditions in Beauvais will be similar to today, with artemisia at moderate levels
Is pollen expected to decrease in Beauvais this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Beauvais?
On 20 September 2026, Artemisia is the dominant pollen source in Beauvais. cypress, grass, and willow are not currently active.
When is pollen season in Beauvais?
How often is the Beauvais pollen forecast updated?
The Beauvais pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Beauvais 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 Beauvais 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 Beauvais, 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 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
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).
