Paris pollen forecast — Bois de Boulogne neighborhood

Today (25 June) pollen in Bois de Boulogne, Paris is medium; grass is medium. Tomorrow (26 June 2026) levels are similar. Over the following five days grass will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

For long term forecasts and maps, see the Airmine app

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Bois de Boulogne’s expansive woodland setting on the western edge of Paris means pollen exposure is among the highest in the city area, with a slightly longer season than in the dense urban core — as deciduous trees such as birch, oak, and chestnut drive a strong and sustained spring peak.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Medium

    30/100

  • Willow (Salicaceae):

    None

    0/100

High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.

Tomorrow - 26 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Medium

    26/100

  • Willow (Salicaceae):

    None

    0/100

Other Landmarks in Paris

Frequently Asked Questions

Is pollen high in Paris right now?

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

Will pollen levels change in Paris tomorrow?

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

Is pollen expected to decrease in Paris this week?

According to the five-day outlook, grass pollen levels are expected to gradually decrease, while cypress pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in Paris?

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

When is pollen season in Paris?
Paris' pollen season runs from February through August, opening with hazel and alder from late January and progressing through birch and plane in April and May. Grass pollen peaks through June and July. The temperate oceanic climate means frequent rainfall provides regular interruptions throughout the season, while the relatively short season ends earlier than in southern European cities due to cooler autumn temperatures.
How often is the Paris pollen forecast updated?

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

Does pollen in Paris 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 Paris 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 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.

Want to see pollen forecasts for other cities in France?

Check pollen in other popular cities:

Data provided by Airmine — Last update: 25 Jun 2026, 09:00 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Bois de Boulogne, Paris.

For long term forecasts and maps, see the Airmine app

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.