Air Quality in São Sebastião do Caí, Brazil

Partly Cloudy
30.4°C · 50.6% humidity
30.4°
Feels 33.7°
1
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
5 5pm
18
11
1 8pm
31
33
34 11pm
35
48
37 2am
37
37
38 5am
38
38
38 8am
38
18
11 11am
11
11
11 2pm
11
11
Station readings
5
18
11
CAMS model adj -16
24
25
27
27
54
54
54
54
66
54
54
54
54
54
54
54
54
34
27
27
27
27
27
27
AD 728×90

Air Quality Index Trend

47h · 3 stn

São Sebastião do Caí's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.

50.6%
Humidity
36.7 km/h
Wind N
1009.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
1
0.2 µg/m³
PM10▲
19
20.55 µg/m³
050100150200300500

What is the weather forecast for São Sebastião do Caí?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations
PM2.50.2 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (1 station within 25 km)
0.2
Median
0.2
Average
0.2
Low
0.2
High
PM2.5 µg/m³ · Model: 6.5 · Bias: +6.3

What is the 7-day forecast for São Sebastião do Caí?

08-03
30.4° 9.3°
4.75 mm
08-04
17.8° 10.0°
2.19 mm
08-05
18.9° 13.7°
9.81 mm
08-06
25.3° 6.6°
0.5 mm
08-07
19.0° 13.9°
4.63 mm
08-08
13.8° 11.5°
14.13 mm
08-09
23.3° 9.7°
2.63 mm
Both models agree Avg diff: 5.1°C

Where are air quality stations near São Sebastião do Caí?

8
brazil-novo-hamburgo-rua-osório
25.0 km PM2.5: 1.9 µg/m³ PM10: 4.4 µg/m³
2
brazil-são-leopoldo-rua-são-joaquim
29.8 km PM2.5: 0.6 µg/m³ PM10: 0.8 µg/m³
6
brazil-são-leopoldo-rua-lindolfo-collor
30.2 km PM2.5: 1.5 µg/m³ PM10: 3.1 µg/m³
23
brazil-são-leopoldo-rua-américa
31.1 km PM2.5: 5.4 µg/m³ PM10: 6.8 µg/m³

What cities are near São Sebastião do Caí?

13 Montenegro 4 Portão 2 Estância Velha 3 Ivoti 1 Novo Hamburgo 3 Dois Irmãos 3 São Leopoldo 5 Nova Santa Rita 3 Campo Bom 7 Sapucaia do Sul
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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 2026-08-07T23:08 UTC.