La Rochelle pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in La Rochelle is medium; mugwort is medium. Tomorrow (10 August 2026) levels are similar. Over the following five days mugwort will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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La Rochelle's coastal green spaces and the Charente-Maritime waterfront feature oak, birch, and pine as the main tree pollen sources, with exposure varying between these areas and the more built-up city centre. Surrounding Charente-Maritime farmland and the Marais Poitevin contribute substantial grass and tree pollen, while the Atlantic coastal position means onshore westerly winds can periodically disperse pollen throughout the season.
Today - 9 August
-
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):
Medium
28/100
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 - 10 August
-
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):
Medium
37/100
Air quality in La Rochelle
View air qualitySports venues in La Rochelle
Frequently Asked Questions
Is pollen high in La Rochelle right now?
On 9 August 2026, overall pollen levels in La Rochelle are moderate. Artemisia is the main contributor to airborne pollen
Will pollen levels change in La Rochelle tomorrow?
On 10 August 2026, pollen conditions in La Rochelle will be similar to today, with artemisia at medium levels
Is pollen expected to decrease in La Rochelle this week?
According to the five-day outlook, grass and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in La Rochelle?
On 9 August 2026, Artemisia is the dominant pollen source in La Rochelle. cypress, grass, willow, and hazel are not currently active.
When is pollen season in La Rochelle?
How often is the La Rochelle pollen forecast updated?
The La Rochelle pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in La Rochelle 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 La Rochelle 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 La Rochelle, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for La Rochelle.
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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.