Lyon pollen forecast — Presqu'île neighborhood

On 30 August 2026, overall pollen levels in Lyon are low. Artemisia is the main contributor to airborne pollen, while grass remain at lower levels

On 31 August 2026, pollen conditions in Lyon will be similar to today with no significant pollen expected.

According to the five-day outlook, artemisia and grass pollen levels will increase later in the week.

On 30 August 2026, Artemisia is the dominant pollen source in Lyon. grass are also present but at lower levels. hazel, cypress, and willow are not currently active.

Presqu'île, a district of Lyon, sees its pollen season open with hazel and alder in late winter, then peaks with birch and oak across April and May, before grass from alpine valley farmland then dominates into early summer, a rhythm shaped by the area's alpine-continental climate.

The Lyon pollen forecast is updated four times daily. See the timestamp below for the most recent update.

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.

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 Lyon, 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.