Chamonix-Mont-Blanc pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Chamonix-Mont-Blanc is none
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week cypress, grass, willow, and mugwort will remain stable.
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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) | None | 0/100 |
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) | None | 0/100 |
Local Environmental Conditions
Chamonix-Mont-Blanc's tree cover, concentrated in parks and along the Isere, is dominated by birch and oak. Surrounding alpine valley pasture and orchards contribute substantial grass and scrub pollen, and the alpine-continental climate creates some local variation in exposure through the season.
Pollen season in Chamonix-Mont-Blanc gets underway in January and February with hazel and alder, before giving way to birch and oak, which peaks in April and May, before grass from alpine valley farmland then carries the season into early summer, typical of this alpine-continental part of France.
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Frequently Asked Questions About Pollen in Auvergne-Rhône-Alpes
Is pollen high in Chamonix-Mont-Blanc right now?
Currently, there is no significant pollen in Chamonix-Mont-Blanc.
Will pollen levels change in Chamonix-Mont-Blanc tomorrow?
On 21 September 2026, pollen conditions in Chamonix-Mont-Blanc will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Chamonix-Mont-Blanc this week?
According to the five-day outlook, pollen levels are expected to remain relatively stable.
Which pollen types are currently active in Chamonix-Mont-Blanc?
On 20 September 2026, there are no significant pollen types in Chamonix-Mont-Blanc.
When is pollen season in Chamonix-Mont-Blanc?
How often is the Chamonix-Mont-Blanc pollen forecast updated?
The Chamonix-Mont-Blanc pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Chamonix-Mont-Blanc 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 Chamonix-Mont-Blanc 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 Chamonix-Mont-Blanc, 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).
