Air Quality in São Caetano do Sul, Brazil

Windy
13.0°C · 84.5% humidity
13.0°
Feels 13.0°
118
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
22 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
126 4am
111
106
118 7am
114
111
109 10am
107
86
78 1pm
84
84
104 4pm
104
103
103 7pm
115
115
132 10pm
115
115
115 1am
115
115
Station readings
126
111
106
98
CAMS model adj +49
66
66
54
54
54
54
54
54
34
27
34
34
54
54
54
54
66
66
83
66
66
66
66
66
AD 728×90

Air Quality Index Trend

48h · 3 stn

São Caetano do Sul's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons. Current PM2.5 concentration in São Caetano do Sul is 2.8× the WHO 24-hour guideline of 15 µg/m³.

84.5%
Humidity
40.9 km/h
Wind ESE
1024.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
118
42.6 µg/m³
PM10
56
66.15 µg/m³
050100150200300500

What is the weather forecast for São Caetano do Sul?

Temperature & Precipitation

PM2.5 Trend

48h · 3 stations
PM2.542.6 µg/m³ ×2.8 WHO
Unhealthy for sensitive groups
PM1066.15 µg/m³
Moderate
UV INDEX0.7
Low
AD 300×250
Station readings (22 stations within 25 km)
42.6
Median
39.84
Average
3.8
Low
59.4
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -29.1

What is the 7-day forecast for São Caetano do Sul?

06-09
23.9° 13.0°
06-10
17.0° 13.0°
0.62 mm
06-11
18.9° 12.1°
1.31 mm
06-12
21.0° 13.9°
1.44 mm
06-13
22.5° 13.4°
7.06 mm
06-14
23.8° 16.0°
5.06 mm
06-15
18.9° 12.5°
5.81 mm
Both models agree Avg diff: 2.9°C

Where are air quality stations near São Caetano do Sul?

12
S.André-Capuava, São Paulo, Brazil
6.3 km PM2.5: 2.9 µg/m³
21
S.Bernardo-Centro, São Paulo, Brazil
8.4 km PM2.5: 5.0 µg/m³
56
S.Bernardo-Centro, São Paulo, Brazil
8.4 km PM2.5: 14.5 µg/m³
13
Diadema, São Paulo, Brazil
9.3 km PM2.5: 3.1 µg/m³
21
Diadema, São Paulo, Brazil
9.3 km PM2.5: 5.0 µg/m³
64
Mooca, São Paulo, Brazil
9.6 km PM2.5: 18.3 µg/m³
26
Mooca, São Paulo, Brazil
9.6 km PM2.5: 6.2 µg/m³
111
Itaquera, São Paulo, Brazil
9.8 km PM2.5: 39.6 µg/m³
10
Mauá, São Paulo, Brazil
10.0 km PM2.5: 2.4 µg/m³
7
Congonhas, São Paulo, Brazil
11.5 km PM2.5: 1.7 µg/m³

What cities are near São Caetano do Sul?

125 Sao Lucas 121 Vila Prudente 130 Sapopemba 129 Santo André 107 Sacomã 128 Vila Formosa 134 Aricanduva 130 Agua Rasa 114 Ipiranga 104 Cursino
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T10:54 UTC.