Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Guelph
Air quality index (AQI) and PM2.5 air pollution in Guelph
3.1K people follow this city
Guelph Air Quality Map
Real-time Guelph air pollution map
AIR QUALITY DATA CONTRIBUTORS
2 Contributors
See all
Pollen
What is the pollen count in Guelph today?
 | Index | None | |
 | Tree pollen | None | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Guelph?
| Weather | Clear sky |
| Temperature | 60.8°F |
| Humidity | 79% |
| Wind | 3.1 mp/h |
| Pressure | 30.2 Hg |
live aqi city ranking
Real-time Canada city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Kitchener, Ontario | 56 |
| 2 | Winnipeg, Manitoba | 48 |
| 3 | Brampton, Ontario | 47 |
| 4 | Sault Ste Marie, Ontario | 46 |
| 5 | Guelph, Ontario | 45 |
| 6 | Hamilton, Ontario | 44 |
| 7 | Montreal, Quebec | 43 |
| 8 | Valemount, British Columbia | 43 |
| 9 | Oakville, Ontario | 41 |
| 10 | Burlington, Ontario | 38 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Guelph aqi ranking
Real-time Guelph air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Guelph Old City | 49 |
| 2 | Ontario Ministry of the Environment Guelph | 44 |
| 3 | Exhibition Park | 26 |
(local time)
SEE WORLD AQI RANKING
US AQI
45
live AQI index
Good
Overview
What is the current air quality in Guelph?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 45 US AQI | O3 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 8µg/m³ | |
| O3 | 110µg/m³ | |
| NO2 | 1.5µg/m³ | |
!
PM2.5
x1.6
PM2.5 concentration in Guelph is currently 1.6 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Guelph?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Guelph air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Tuesday, May 28 | Good 24 AQI US |  | 60.8° 46.4° |  11.2 mp/h |
| Wednesday, May 29 | Good 31 AQI US |  | 60.8° 39.2° | 11.2 mp/h |
| Thursday, May 30 | Good 30 AQI US | | 68° 42.8° | 8.9 mp/h |
| Today | Good 45 AQI US | | 69.8° 48.2° | 8.9 mp/h |
| Saturday, Jun 1 | Moderate 56 AQI US  | | 62.6° 51.8° | 6.7 mp/h |
| Sunday, Jun 2 | Moderate 65 AQI US |  | 69.8° 51.8° | 8.9 mp/h |
| Monday, Jun 3 | Moderate 62 AQI US | | 75.2° 55.4° | 11.2 mp/h |
| Tuesday, Jun 4 | Moderate 61 AQI US |  40% | 73.4° 57.2° | 13.4 mp/h |
| Wednesday, Jun 5 | Good 46 AQI US | 100% | 66.2° 53.6° | 15.7 mp/h |
| Thursday, Jun 6 | Good 13 AQI US | 80% | 53.6° 46.4° | 11.2 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Guelph air quality data attribution
2Contributors
- Nichols Family
1 station
Individual Contributor
- 1 Anonymous contributor
1 station
Anonymous Contributor
Data validated and calibrated by IQAirWhere is the cleanest air quality in Guelph?
AQI US, Metric