Château-Gontier pollen forecast - today, tomorrow and the week ahead
Today (20 July) pollen in Château-Gontier is low; grass is low. Tomorrow (21 July 2026) levels are similar - grass remains low, mugwort at low levels. Over the following five days grass and mugwort 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
Use our Strava plugin to check your own exposure.
Around Château-Gontier, green spaces along the Vilaine feature oak and plane as the dominant tree pollen sources, with exposure varying across the town. Loire valley and Vendee farmland nearby contribute meaningful grass and crop pollen exposure, and the oceanic climate creates some local variation in exposure through the season.
Today - 20 July
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
3/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
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 - 21 July
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
15/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
14/100
Air quality in Château-Gontier
View air qualityFrequently Asked Questions
Is pollen high in Château-Gontier right now?
On 20 July 2026, overall pollen levels in Château-Gontier are low. Grass is the main contributor to airborne pollen
Will pollen levels change in Château-Gontier tomorrow?
On 21 July 2026, pollen conditions in Château-Gontier will be different from today, with grass at low levels, artemisia at low levels
Is pollen expected to decrease in Château-Gontier this week?
According to the five-day outlook, grass and artemisia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Château-Gontier?
On 20 July 2026, Grass is the dominant pollen source in Château-Gontier. willow, alder, artemisia, birch, hazel, and cypress are not currently active.
When is pollen season in Château-Gontier?
How often is the Château-Gontier pollen forecast updated?
The Château-Gontier pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Château-Gontier 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 Château-Gontier 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 Château-Gontier, 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: 20 July 2026 at 16:32 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Château-Gontier.
For long term forecasts and maps, see the Airmine app
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.