Air Quality in São Sebastião do Caí, Brazil
Cloudy
13.4°C · 74.6% humidity
13.4°
Feels 13.4°
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
São Sebastião do Caí's air quality — share it
AQI Forecast
Calibrated
18
4am
16
18
13
7am
11
9
8
10am
8
7
7
1pm
7
6
6
4pm
6
6
6
7pm
6
6
6
10pm
6
6
6
1am
6
6
Station readings
18
16
18
17
CAMS model
adj -18
34
27
27
25
25
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
Air Quality Index Trend
48h · 3 stnSão 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.
74.6%
Humidity
11.3 km/h
Wind NNE
1026.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
3.07 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for São Sebastião do Caí?
Temperature & Precipitation
PM2.5 Trend
48h · 3 stationsPM2.53.07 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
3.07
Median
3.07
Average
3.07
Low
3.07
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +2.9
What is the 7-day forecast for São Sebastião do Caí?
06-09
20.5° 5.6°
06-10
21.7° 11.5°
06-11
14.6° 8.1°
0.25 mm
06-12
17.2° 10.5°
1.94 mm
06-13
25.6° 9.6°
1.37 mm
06-14
17.4° 7.8°
3.75 mm
06-15
16.8° 12.3°
0.81 mm
Both models agree
Avg diff: 4.3°C
Where are air quality stations near São Sebastião do Caí?
8
brazil-novo-hamburgo-rua-osório
11
brazil-são-leopoldo-rua-são-joaquim
8
brazil-são-leopoldo-rua-lindolfo-collor
38
brazil-são-leopoldo-rua-américa
What cities are near São Sebastião do Caí?
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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 2026-06-09T10:47 UTC.