Worst air pollution Guingamp, today and tomorrow
Today (26 August): Air quality in Guingamp is moderate. AQI and NO2 are moderate; O3 is fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (NO2: 40.5/100).
Tomorrow (27 August 2026): Air quality in Guingamp is moderate. All pollutants stay as today. Pollution peaks around 10:00 PM (NO2: 40.5/100). Airmine updates local air quality forecasts four times daily.
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Air quality in Guingamp reflects fishing-port and coastal traffic as the main local source, alongside its setting near the Rance, and Atlantic sea breezes ventilate the coast reliably, which helps maintain reasonable air quality across the year. Steady Atlantic winds keep air quality good in almost every season, and even summer rarely sees the pollution build-up common further inland.
Today - 26 August | Pollution peaks at 08:00
AQI:
Moderate
40.5/100
PM2.5 (fine particles):
Good
15.2/100
PM10 (coarse particles):
Good
5.6/100
NO2 (nitrogen dioxide):
Moderate
40.5/100
O3 (ozone):
Fair
28.4/100
SO2 (sulfur dioxide):
Good
5.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.7/100
PM1 (ultrafine particles):
Good
10.9/100
Levels show the poorest local air quality during the day
Tomorrow - 27 August | Pollution peaks at 22:00
AQI:
Moderate
40.5/100
PM2.5 (fine particles):
Good
5.0/100
PM10 (coarse particles):
Good
1.6/100
NO2 (nitrogen dioxide):
Moderate
40.5/100
O3 (ozone):
Fair
25.7/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.2/100
PM1 (ultrafine particles):
Good
6.2/100
Pollen forecast in Guingamp
View pollen forecastSports venues in Guingamp
Frequently Asked Questions
Is air quality bad in Guingamp right now?
On 26 August 2026, overall air quality in Guingamp is moderate. AQI is the main air quality indicator at 40.5/100. Pollution peaks around 8:00 AM (NO2: 40.5/100).
Will air quality be worse tomorrow in Guingamp?
On 27 August 2026, air quality conditions in Guingamp will be similar to today, with AQI forecast at moderate at 40.5/100. Pollution peaks around 10:00 PM (NO2: 40.5/100).
When is air pollution at its worst in Guingamp?
Guingamp's toughest days for allergy and air quality sufferers alike are usually calm, dry ones when fishing-port and coastal traffic overlap with the birch and oak pollen peak; Atlantic sea breezes ventilate the coast reliably, offering fairly regular relief.
Are air quality levels in Guingamp based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 26 August 2026 at 08:27 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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