Lancy pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Lancy is low; grass is low.
Pollen Tomorrow
Tomorrow (21 September 2026) grass no longer expected.
7-Day Trend
Over the next week cypress, grass, 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
Lancy's Geneva-suburb setting features oak, ash, and linden as pollen sources, with exposure varying between residential parkland and the built-up dense commercial and residential streets bordering central Geneva. Surrounding greenery extends tree pollen.
The pollen year at Lancy opens with hazel and alder in January, birch takes over through April, oak and plane carry the season forward, and grass rounds things out through June and July. Calm days let pollen build along this lakeside corridor, while nearby vineyards, farmland, and wooded foothills add a steady tree and grass supply. The lake's moderating effect means the season here tends to start a little earlier than in more elevated Swiss cities.
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Frequently Asked Questions About Pollen in Genève
Is pollen high in Lancy right now?
On 20 September 2026, overall pollen levels in Lancy are low. Grass is the main contributor to airborne pollen
Will pollen levels change in Lancy tomorrow?
On 21 September 2026, pollen conditions in Lancy will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Lancy this week?
According to the five-day outlook, pollen levels are expected to remain relatively stable.
Which pollen types are currently active in Lancy?
On 20 September 2026, Grass is the dominant pollen source in Lancy. artemisia, cypress, and willow are not currently active.
When is pollen season in Lancy?
How often is the Lancy pollen forecast updated?
The Lancy pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Lancy 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 Lancy 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 Lancy, 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).
