Chiasso Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Chiasso is low; mold (alternaria) and mold (cladosporium) are low.
Pollen Tomorrow
Tomorrow (11 October 2026) levels are similar to today.
7-Day Trend
Over the next week grass will increase; mold (alternaria) and mold (cladosporium) will decrease; cypress, willow, and mugwort will remain stable.
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Pollen Risk
Today - 10 October
| 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 |
| Mold (Alternaria) | Low | 7/100 |
| Mold (Cladosporium) | Low | 16/100 |
Tomorrow - 11 October
| 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 | |
| Mold (Alternaria) | Low | 11/100 | |
| Mold (Cladosporium) | Low | 21/100 |
Local Environmental Conditions
The heart of Chiasso is surrounded mainly by built-up land, with a good deal of woodland. Of the trees nearby, ash, oak and hazel are the ones that matter most for allergies. Grasses also feature strongly, alongside ragweed and pellitory among the weeds. Ragweed is unusually common here compared with most other locations, making it a particularly important local pollen source.
Hazel opens the pollen season in late winter. Tree pollen peaks in mid-spring, when the weather warms to around 10°C and ash and oak are in full flower. Grasses take over in early summer, with temperatures around 20°C, and their pollen lingers into late summer. The most intense period comes from late summer into mid-fall, when ragweed and pellitory are in flower. By late fall, pollen levels are low again.
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Frequently Asked Questions About Pollen in Ticino
Is pollen high in Chiasso right now?
Currently, there is no significant pollen in Chiasso.
Will pollen levels change in Chiasso tomorrow?
On 11 October 2026, pollen conditions in Chiasso will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Chiasso this week?
According to the five-day outlook, grass pollen levels will increase later in the week.
Which pollen types are currently active in Chiasso?
On 10 October 2026, there are no significant pollen types in Chiasso.
When is pollen season in Chiasso?
How often is the Chiasso pollen forecast updated?
The Chiasso pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Chiasso 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 Chiasso 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 Chiasso, 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 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
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).
