Paris pollen forecast — Marais district neighborhood

On 25 June 2026, overall pollen levels in Paris are low. Grass is the main contributor to airborne pollen

On 26 June 2026, pollen conditions in Paris will be similar to today, with grass at low levels

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

On 25 June 2026, Grass is the dominant pollen source in Paris. birch, hazel, cypress, willow, and alder are not currently active.

Paris Marais district's dense urban fabric features plane trees lining the historic streets and squares, with oak and lime contributing from the Vosges gardens. Surrounding Paris urban vegetation contributes additional tree and grass pollen, while birch peaks through April and May, grass through June and July, and mugwort extends into September throughout this historic Right Bank district.

The Paris 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 Paris, 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.