Assistência, Rio Claro
São Paulo

Air Quality

Rio Claro • 3 days
Good
Moderate
Sensitive groups
Unhealthy
Very unhealthy
Hazardous
Today 28/07
😊
Good AQI 27 / 300
GoodModerateHazardous
PM2.5
6.5 µg/m³
PM10
6.7 µg/m³
Ozone (O₃)
113.0 µg/m³
Nitrogen dioxide (NO₂)
2.0 µg/m³
Sulfur dioxide (SO₂)
1.8 µg/m³
Carbon monoxide (CO)
144.0 µg/m³
Tomorrow 29/07
😐
Moderate AQI 92 / 300
GoodModerateHazardous
PM2.5
31.5 µg/m³
PM10
32.5 µg/m³
Ozone (O₃)
54.4 µg/m³
Nitrogen dioxide (NO₂)
26.7 µg/m³
Sulfur dioxide (SO₂)
3.5 µg/m³
Carbon monoxide (CO)
372.5 µg/m³
Thu 30/07
😐
Moderate AQI 94 / 300
GoodModerateHazardous
PM2.5
32.5 µg/m³
PM10
33.8 µg/m³
Ozone (O₃)
77.5 µg/m³
Nitrogen dioxide (NO₂)
25.0 µg/m³
Sulfur dioxide (SO₂)
7.2 µg/m³
Carbon monoxide (CO)
491.7 µg/m³

The air in Rio Claro feels a bit heavy today, like the kind of afternoon where the breeze has gone missing. Breathing might not be as effortless as usual, especially if you step outside for more than a few minutes. It’s not terrible, but there’s a slight thickness to it that makes you notice your breath a little more.

You can still go about your day outdoors, but I’d take it easy if you were planning a long run or a bike ride. Right now, the air is fine for a quiet walk or sitting on the porch, but pushing yourself hard might leave you feeling a bit worn out. Opening the windows for a short while is fine, though you might want to keep them closed if you notice your throat feeling scratchy.

If you have children, or if you’re someone who lives with asthma or a sensitive heart, this is one of those days to pace yourself. Older folks and anyone with breathing troubles should probably keep outdoor time brief and stick to gentler activities. It’s not a red flag, just a yellow one, a reminder that today’s air isn’t as crisp as it could be.

On the bright side, this is a common kind of day around here, and it usually passes without much fuss. A little caution goes a long way: keep a window cracked for a moment if you need fresh air, and maybe hold off on that vigorous workout until tomorrow. By evening, the air should settle, and you’ll be breathing easy again.

Weather map

Wind, rain and temperature — Assistência
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Districts

Rio Claro

Air quality in Assistência, Rio Claro (SP)

Air quality in the district of Assistência, Rio Claro (São Paulo): air quality index (AQI), PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide and carbon monoxide for today, tomorrow and the day after.