Annecy pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Annecy is low; grass is low.
Pollen Tomorrow
Tomorrow (21 September 2026) grass no longer expected.
7-Day Trend
Over the next week grass will increase; cypress, willow, and mugwort 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) | Low | 13/100 |
| 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
Annecy's Jardins de l'Europe and the Lake Annecy shoreline feature oak, birch, and linden as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. The enclosed lake basin and surrounding Aravis and Bauges mountain woodland concentrate pollen under calm conditions, while surrounding Savoie farmland contributes additional grass pollen throughout the season.
Annecy's enclosed Alpine lake basin concentrates pollen under calm conditions, particularly during spring temperature inversions. Hazel and alder open from January before birch peaks through April, with oak and ash following through May. Grass from surrounding Savoie farmland peaks through June and July, while the surrounding Aravis and Bauges mountain woodland contributes substantial tree pollen during the spring peak.
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Resource Hub
Sports venues in Annecy 1 sports venue
Frequently Asked Questions About Pollen in Auvergne-Rhône-Alpes
Is pollen high in Annecy right now?
On 20 September 2026, overall pollen levels in Annecy are low. Grass is the main contributor to airborne pollen
Will pollen levels change in Annecy tomorrow?
On 21 September 2026, pollen conditions in Annecy will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Annecy this week?
According to the five-day outlook, grass pollen levels will increase later in the week.
Which pollen types are currently active in Annecy?
On 20 September 2026, Grass is the dominant pollen source in Annecy. willow, artemisia, and cypress are not currently active.
When is pollen season in Annecy?
How often is the Annecy pollen forecast updated?
The Annecy pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Annecy 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 Annecy 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 Annecy, 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).
