Worst air pollution Martigny, today and tomorrow
Today (16 July): Air quality in Martigny is fair. O3 is fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 AM (NO2: 43.6/100).
Tomorrow (17 July 2026): Air quality in Martigny is fair. All pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 41.9/100). Airmine updates local air quality forecasts four times daily.
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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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Martigny's air quality reflects its position at the Rhône valley's bend toward the Great St. Bernard Pass, with vehicle traffic on the A9 motorway contributing local sources under the valley's inversion tendency.
Today - 16 July | Pollution peaks at 05:00
AQI:
Medium
43.6/100
PM2.5 (fine particles):
Good
16.2/100
PM10 (coarse particles):
Good
7.9/100
NO2 (nitrogen dioxide):
Medium
43.6/100
O3 (ozone):
Fair
36.4/100
SO2 (sulfur dioxide):
Good
2.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.6/100
PM1 (ultrafine particles):
Good
18.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Medium
41.9/100
PM2.5 (fine particles):
Good
12.8/100
PM10 (coarse particles):
Good
13.5/100
NO2 (nitrogen dioxide):
Medium
41.9/100
O3 (ozone):
Fair
36.3/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.0/100
PM1 (ultrafine particles):
Good
9.3/100
Pollen forecast in Martigny
View pollen forecastFrequently Asked Questions
Is air quality bad in Martigny right now?
On 16 July 2026, overall air quality in Martigny is fair. O3 is the main pollutant at 36.4/100. Pollution peaks around 5:00 AM (NO2: 43.6/100).
Will air quality be worse tomorrow in Martigny?
On 17 July 2026, air quality conditions in Martigny will be similar to today, with O3 forecast at fair at 36.3/100. Pollution peaks around 11:00 PM (NO2: 41.9/100).
When is air pollution at its worst in Martigny?
Air quality at Martigny dips most on still winter mornings, when vehicle traffic and orchard and vineyard machinery settle into the dry Rhone valley and sit under a cold-air layer. From spring, conditions steadily pick up along the Rhone, and summer stays mostly clear aside from a rare ozone spike, with autumn usually just as settled.
Are air quality levels in Martigny 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.
Want to see air quality forecasts for other cities in Switzerland?
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app