Casa Amesti, Monterey Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (10 October): Air quality in Casa Amesti is fair. AQI, PM2.5, PM10, O3, and PM1 are fair; NO2, SO2, CO, and HCHO are good. Pollution peaks around 12:00 PM (PM2.5: 30.6/100).
Air Quality Tomorrow
Tomorrow (11 October 2026): Air quality in Casa Amesti is moderate. AQI worsens to moderate; PM2.5 increases to moderate; all other pollutants stay as today. Pollution peaks around 10:00 AM (PM2.5: 40.1/100).
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Air Quality
Today - 10 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Fair | 30.6/100 |
| PM2.5 (fine particles) | Fair | 30.6/100 |
| PM10 (coarse particles) | Fair | 20.8/100 |
| NO2 (nitrogen dioxide) | Good | 9.0/100 |
| O3 (ozone) | Fair | 25.5/100 |
| SO2 (sulfur dioxide) | Good | 0.8/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 1.4/100 |
| PM1 (ultrafine particles) | Fair | 20.8/100 |
Tomorrow - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Moderate | 40.1/100 |
| PM2.5 (fine particles) | Moderate | 40.1/100 |
| PM10 (coarse particles) | Fair | 24.5/100 |
| NO2 (nitrogen dioxide) | Good | 10.7/100 |
| O3 (ozone) | Fair | 30.3/100 |
| SO2 (sulfur dioxide) | Good | 1.3/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 2.2/100 |
| PM1 (ultrafine particles) | Fair | 36.5/100 |
Local Environmental Conditions
With buildings covering much of the area around this site in Monterey, traffic and other urban emissions are the biggest local influence on air quality. Parks and street trees provide a modest buffer against traffic pollution. On some days, pollution drifting in from farther away outweighs local sources. Exhaust from nearby roads is usually highest close to busy streets and junctions.
Summers are mild, averaging around 17°C in the warmest month, so ozone usually stays moderate even from August to September. Air near roads is often at its worst from January to March, when nights cool to around 11°C and the air turns still. From July to October, dry weather raises the risk of wildfires, and their smoke can cover the area in haze.
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Frequently Asked Questions About Air Quality in California
Is air quality bad in Casa Amesti right now?
On 10 October 2026, overall air quality in Casa Amesti is fair. AQI is the main air quality indicator at 30.6/100. Pollution peaks around 12:00 PM (PM2.5: 30.6/100).
Will air quality be worse tomorrow in Casa Amesti?
On 11 October 2026, air quality conditions in Casa Amesti will be worse than today, with AQI forecast at moderate at 40.1/100. Pollution peaks around 10:00 AM (PM2.5: 40.1/100).
When is air pollution at its worst in Casa Amesti?
Summers are mild, averaging around 17°C in the warmest month, so ozone usually stays moderate even from August to September. Air near roads is often at its worst from January to March, when nights cool to around 11°C and the air turns still. From July to October, dry weather raises the risk of wildfires, and their smoke can cover the area in haze.
Are air quality levels in Casa Amesti 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. |