St. Moritz pollen forecast — Engadin Skimarathon Start (Silvaplana) neighborhood
Pollen Today
Today (20 September) pollen in Engadin Skimarathon Start (Silvaplana), St. Moritz 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
Engadin Skimarathon Start's high Engadin valley setting near Silvaplana features larch and alpine meadow grasses as the main pollen sources, with exposure concentrated in the brief high-altitude summer growing window.
At Engadin Skimarathon Start (Silvaplana), the pollen season is short and shaped by elevation, running from roughly June through August as larch and alpine meadow grasses take over lower on the slopes. The usual hazel-to-birch spring progression is largely absent here, with exposure dropping away quickly above the treeline as vegetation and pollen output both thin considerably.
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Resource Hub
Pollen forecast neighborhoods 4 neighborhoods
Sports venues in St. Moritz 2 sports venues
Frequently Asked Questions About Pollen in Graubünden
Is pollen high in St. Moritz right now?
Currently, there is no significant pollen in St. Moritz.
Will pollen levels change in St. Moritz tomorrow?
On 21 September 2026, pollen conditions in St. Moritz will be similar to today with no significant pollen expected.
Is pollen expected to decrease in St. Moritz this week?
According to the five-day outlook, pollen levels are expected to remain relatively stable.
Which pollen types are currently active in St. Moritz?
On 20 September 2026, there are no significant pollen types in St. Moritz.
When is pollen season in St. Moritz?
How often is the St. Moritz pollen forecast updated?
The St. Moritz pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in St. Moritz 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 St. Moritz 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 St. Moritz, 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).
