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Air quality in Guelph
Air quality index (AQI) and PM2.5 air pollution in Guelph
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Guelph Air Quality Map
Real-time Guelph air pollution map
AIR QUALITY DATA CONTRIBUTORS
Nichols Family
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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 | 69.8°F |
| Humidity | 61% |
| Wind | 4.6 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time Canada city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Leduc, Alberta | 56 |
| 2 | Kitchener, Ontario | 54 |
| 3 | Grimshaw, Alberta | 52 |
| 4 | Valemount, British Columbia | 51 |
| 5 | Hamilton, Ontario | 48 |
| 6 | London, Ontario | 46 |
| 7 | Oshawa, Ontario | 46 |
| 8 | Rouyn-Noranda, Quebec | 44 |
| 9 | Maniwaki, Quebec | 43 |
| 10 | Gatineau, Quebec | 42 |
(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 | 49 |
(local time)
SEE WORLD AQI RANKING
US AQI
49
live AQI index
Good
Overview
What is the current air quality in Guelph?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 49 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 9µg/m³ | |
| O3 | 98µg/m³ | |
| NO2 | 3µg/m³ | |
!
PM2.5
x1.8
PM2.5 concentration in Guelph is currently 1.8 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 |
|---|---|---|---|---|
| Wednesday, May 15 | Moderate 60 AQI US  |  | 68° 50° |  8.9 mp/h |
| Thursday, May 16 | Moderate 61 AQI US | | 64.4° 53.6° | 8.9 mp/h |
| Friday, May 17 | Moderate 52 AQI US | | 69.8° 51.8° | 6.7 mp/h |
| Today | Good 49 AQI US | | 69.8° 51.8° | 6.7 mp/h |
| Sunday, May 19 | Moderate 71 AQI US | 60% | 77° 53.6° | 6.7 mp/h |
| Monday, May 20 | Moderate 67 AQI US | 40% | 75.2° 55.4° | 8.9 mp/h |
| Tuesday, May 21 | Moderate 66 AQI US | 70% | 78.8° 60.8° | 11.2 mp/h |
| Wednesday, May 22 | Moderate 59 AQI US | 100% | 75.2° 62.6° | 17.9 mp/h |
| Thursday, May 23 | Good 32 AQI US | 100% | 59° 46.4° | 15.7 mp/h |
| Friday, May 24 | Good 12 AQI US | | 69.8° 44.6° | 4.5 mp/h |
| Saturday, May 25 | Good 21 AQI US |  | 69.8° 50° | 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
1Contributor
- Nichols Family
1 station
Individual Contributor
Data validated and calibrated by IQAirWhere is the cleanest air quality in Guelph?
AQI US, Metric