Air Quality in São Caetano do Sul, Brazil

Windy
13.0°C · 84.5% humidity
13.0°
Feels 13.0°
117
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
30 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
111 5am
106
98
117 8am
113
110
108 11am
87
79
85 2pm
84
104
104 5pm
103
103
115 8pm
115
132
115 11pm
115
115
115 2am
115
115
Station readings
111
106
98
101
CAMS model adj +49
66
54
54
54
54
54
54
34
27
34
34
54
54
54
54
66
66
83
66
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
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
117
42.06 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
PM2.542.06 µg/m³ ×2.8 WHO
Unhealthy for sensitive groups
PM1066.15 µg/m³
Moderate
UV INDEX1.4
Low
AD 300×250
Station readings (30 stations within 25 km)
42.06
Median
40.33
Average
8.6
Low
59.4
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -28.6

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
31
Itaquera, São Paulo, Brazil
9.8 km PM2.5: 7.4 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?

122 Sao Lucas 122 Vila Prudente 123 Sapopemba 120 Santo André 113 Sacomã 124 Vila Formosa 126 Aricanduva 130 Agua Rasa 123 Ipiranga 116 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 2026-06-09T11:46 UTC.