Budapest Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (10 October): Air quality in Budapest is moderate. AQI, PM2.5, and NO2 are moderate; PM10, HCHO, and PM1 are fair; O3, SO2, and CO are good. Pollution peaks around 8:00 AM (PM2.5: 45.5/100).
Air Quality Tomorrow
Tomorrow (11 October 2026): Air quality in Budapest is fair. AQI improves to fair; PM2.5 decreases to fair; PM10 decreases to good; NO2 decreases to fair; HCHO decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM2.5: 36.3/100).
Explore Forecasts
Pollen & Mold
Air Quality for Neighborhoods
Pollen & AQ for Routes
Get More in Our App
Local pollen and air quality forecasts, interactive pollen maps and route profiles
Features and forecast availability vary by region.
Air Quality
Today - 10 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Moderate | 45.5/100 |
| PM2.5 (fine particles) | Moderate | 45.5/100 |
| PM10 (coarse particles) | Fair | 27.3/100 |
| NO2 (nitrogen dioxide) | Moderate | 43.6/100 |
| O3 (ozone) | Good | 13.2/100 |
| SO2 (sulfur dioxide) | Good | 2.3/100 |
| CO (carbon monoxide) | Good | 1.0/100 |
| HCHO (formaldehyde) | Fair | 21.4/100 |
| PM1 (ultrafine particles) | Fair | 34.1/100 |
Tomorrow - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Fair | 36.3/100 |
| PM2.5 (fine particles) | Fair | 36.3/100 |
| PM10 (coarse particles) | Good | 16.0/100 |
| NO2 (nitrogen dioxide) | Fair | 23.6/100 |
| O3 (ozone) | Good | 12.6/100 |
| SO2 (sulfur dioxide) | Good | 0.8/100 |
| CO (carbon monoxide) | Good | 0.8/100 |
| HCHO (formaldehyde) | Good | 15.7/100 |
| PM1 (ultrafine particles) | Fair | 21.2/100 |
Local Environmental Conditions
Around the heart of Budapest, dense development means road traffic is the main local source of nitrogen dioxide and fine particles. In cold weather, wood burning and other home heating become a noticeable source of fine particles. Pockets of trees and green space help filter a small share of the particles from traffic. Pollution carried in from the wider region can also raise levels at times.
Fine particle levels climb from November to March, as home heating and traffic combine with cold, still air averaging 1°C. Later in the year, ozone is the main concern from June to August, when sunny days averaging 25°C turn traffic and other emissions into ozone by mid-afternoon. January is usually the windiest month, averaging about 15 km/h, which helps keep the air clean.
Get pollen & AQ on Strava
Follow your environmental exposure and performance with the free Airmine-Strava integration. See your pollen and air quality exposure for every Strava activity.
Resource Hub
Air quality forecast neighborhoods 5 neighborhoods
Sports venues in Budapest 1 sports venue
Popular Local Routes 2 routes
Local events 1 event
Frequently Asked Questions About Air Quality in Budapest
Is air quality bad in Budapest right now?
On 10 October 2026, overall air quality in Budapest is moderate. AQI is the main air quality indicator at 45.5/100. Pollution peaks around 8:00 AM (PM2.5: 45.5/100).
Will air quality be worse tomorrow in Budapest?
On 11 October 2026, air quality conditions in Budapest will be better than today, with AQI forecast at fair at 36.3/100. Pollution peaks around 12:00 AM (PM2.5: 36.3/100).
When is air pollution at its worst in Budapest?
Fine particle levels climb from November to March, as home heating and traffic combine with cold, still air averaging 1°C. Later in the year, ozone is the main concern from June to August, when sunny days averaging 25°C turn traffic and other emissions into ozone by mid-afternoon. January is usually the windiest month, averaging about 15 km/h, which helps keep the air clean.
Are air quality levels in Budapest 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.
Understanding the Scale
The 0–100 air quality scores represent risk levels, not direct air pollutant concentrations. Higher scores indicate higher risk.
Air Quality
| Good | 0-20 | Low air quality risk. Air quality is expected to be good, with low levels of pollution. |
| Fair | 20-40 | Generally low air quality risk. Air quality is expected to be acceptable, with some pollution present. |
| Moderate | 40-60 | Moderate air quality risk. Air pollution is elevated and air quality may be less favorable. |
| Poor | 60-80 | High air quality risk. Air pollution is high and air quality is expected to be poor. |
| Very Poor | 80-100 | Very high air quality risk. Air pollution is very high and air quality is expected to be very poor. |