Air Quality in São Sebastião do Caí, Brazil
Overcast
12.8°C · 98.8% humidity
12.8°
Feels 12.8°
10
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
25
5pm
7
5
10
8pm
12
14
16
11pm
16
17
18
2am
18
18
19
5am
19
19
19
8am
19
19
19
11am
19
19
19
2pm
19
19
Station readings
25
7
5
CAMS model
adj -6
24
24
24
24
24
24
25
24
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
Air Quality Index Trend
47h · 4 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.
98.8%
Humidity
17.3 km/h
Wind WNW
1020.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
2.5 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for São Sebastião do Caí?
Temperature & Precipitation
PM2.5 Trend
47h · 4 stationsPM2.52.5 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
2.5
Median
2.5
Average
2.5
Low
2.5
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +3.4
What is the 7-day forecast for São Sebastião do Caí?
07-21
20.4° 10.4°
18.81 mm
07-22
26.7° 8.4°
14.37 mm
07-23
21.1° 10.5°
07-24
20.5° 15.7°
0.13 mm
07-25
26.7° 6.7°
07-26
17.0° 9.7°
9.13 mm
07-27
15.3° 8.9°
3.94 mm
Both models agree
Avg diff: 5.4°C
Where are air quality stations near São Sebastião do Caí?
5
brazil-novo-hamburgo-rua-osório
4
brazil-são-leopoldo-rua-são-joaquim
4
brazil-são-leopoldo-rua-lindolfo-collor
5
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 2026-07-21T23:28 UTC.