Caieiras
São Paulo

Air Quality

Caieiras • 3 days
Good
Moderate
Sensitive groups
Unhealthy
Very unhealthy
Hazardous
Today 28/07
😊
Good AQI 23 / 300
GoodModerateHazardous
PM2.5
5.5 µg/m³
PM10
5.6 µg/m³
Ozone (O₃)
111.0 µg/m³
Nitrogen dioxide (NO₂)
4.2 µg/m³
Sulfur dioxide (SO₂)
3.9 µg/m³
Carbon monoxide (CO)
153.0 µg/m³
Tomorrow 29/07
😊
Good AQI 45 / 300
GoodModerateHazardous
PM2.5
10.7 µg/m³
PM10
10.9 µg/m³
Ozone (O₃)
73.0 µg/m³
Nitrogen dioxide (NO₂)
19.8 µg/m³
Sulfur dioxide (SO₂)
5.0 µg/m³
Carbon monoxide (CO)
270.4 µg/m³
Thu 30/07
😐
Moderate AQI 56 / 300
GoodModerateHazardous
PM2.5
15.0 µg/m³
PM10
16.5 µg/m³
Ozone (O₃)
66.9 µg/m³
Nitrogen dioxide (NO₂)
21.8 µg/m³
Sulfur dioxide (SO₂)
9.6 µg/m³
Carbon monoxide (CO)
324.2 µg/m³

The air in Caieiras today feels a bit heavy, like the kind of afternoon where you notice it more when you take a deep breath. It’s not awful, nothing like a smoky day, but you can sense it’s not as crisp as usual. If you’re stepping outside, you might feel a little tightness in your chest, especially if you’re sensitive to these things.

It’s still fine to go about your day, but I’d suggest skipping the heavy jog or bike ride this afternoon. Opening the windows for a quick air swap is okay, but maybe don’t leave them wide open all day, the air indoors is probably a bit fresher. For most of us, it’s no big deal, just a day to take it a little easier.

If you have kids, elderly folks at home, or anyone with breathing or heart trouble, it’s wise to keep things calm today. They might feel the air more, so a short walk is fine, but a long stretch outside could be tiring. No need to panic, just a heads-up to check in with them.

The key is to relax and not push yourself too hard. By tomorrow the air should feel lighter again, so this is just one of those days where you take it slow. Enjoy a quiet afternoon indoors with a book or a movie, and you’ll be just fine.

Weather map

Wind, rain and temperature — Caieiras
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Air quality in Caieiras (SP)

Air quality in Caieiras (São Paulo) with up-to-date data for today, tomorrow and the day after: air quality index (AQI), fine particulate matter PM2.5 and PM10, ozone (O₃), nitrogen dioxide (NO₂), sulfur dioxide (SO₂) and carbon monoxide (CO). Find out whether the air is Good, Moderate, Unhealthy or Hazardous and make safer decisions for outdoor activities.