Alès pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Alès is moderate; mugwort is moderate; grass is low.
Pollen Tomorrow
Tomorrow (21 September 2026) mugwort declining, grass no longer expected.
7-Day Trend
Over the next week grass will increase; mugwort will decrease; cypress and willow will remain stable.
Explore Forecasts
Air Quality
Pollen in Other Cities
Air Quality in Other Cities
Get More in Our App
Local pollen and air quality forecasts, interactive pollen maps and route profiles
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) | Low | 20/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Moderate | 46/100 |
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) | Low | 21/100 |
Local Environmental Conditions
Alès's tree cover, concentrated in parks and along the Tarn, is dominated by plane and oak. Surrounding Languedoc vineyards and Pyrenean farmland contribute substantial grass and scrub pollen, while the Mediterranean-continental climate shapes how pollen disperses across the town.
Alès's pollen season runs from January through July, opening with olive and cypress in late winter, then peaks with plane and oak across April and May, before grass from vineyard land extends the season into summer, with the Mediterranean-continental climate of the region shaping the overall pattern.
Get pollen & AQ on Strava
Follow your environmental exposure and performance with the free Airmine-Strava integration. See your pollen and air quality exposure for every Strava activity.
Resource Hub
Frequently Asked Questions About Pollen in Occitanie
Is pollen high in Alès right now?
On 20 September 2026, overall pollen levels in Alès are moderate. Artemisia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Alès tomorrow?
On 21 September 2026, pollen conditions in Alès will be different from today, with artemisia continuing to decline
Is pollen expected to decrease in Alès this week?
According to the five-day outlook, artemisia 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 Alès?
On 20 September 2026, Artemisia is the dominant pollen source in Alès. grass are also present but at lower levels. cypress and willow are not currently active.
When is pollen season in Alès?
How often is the Alès pollen forecast updated?
The Alès pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Alès 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 Alès 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 Alès, 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).
