Air Quality in São Sebastião do Caí, Brazil
Drizzle
23.4°C · 81.6% humidity
23.4°
Feels 23.4°
4
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
12
11am
11
0
4
2pm
4
3
2
5pm
1
1
2
8pm
1
1
1
11pm
1
8
8
2am
28
28
28
5am
28
1
0
8am
0
0
Station readings
12
11
CAMS model
adj -26
25
25
25
25
25
25
25
25
25
27
27
27
27
27
34
34
54
54
54
54
27
25
25
24
Air Quality Index Trend
46h · 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.
81.6%
Humidity
61.5 km/h
Wind NW
1005.5 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
1.0 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for São Sebastião do Caí?
Temperature & Precipitation
PM2.5 Trend
46h · 3 stationsPM2.51.0 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX12.9
Extreme
Station readings (1 station within 25 km)
1.0
Median
1.0
Average
1.0
Low
1.0
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +5.0
What is the 7-day forecast for São Sebastião do Caí?
09-05
23.4° 10.5°
1.06 mm
09-06
16.9° 11.3°
41.69 mm
09-07
27.4° 13.3°
12.81 mm
09-08
20.6° 9.5°
19.19 mm
09-09
15.9° 3.2°
2.81 mm
09-10
22.0° 14.1°
1.31 mm
09-11
21.7° 13.6°
3.06 mm
Both models agree
Avg diff: 4.7°C
Where are air quality stations near São Sebastião do Caí?
5
brazil-novo-hamburgo-rua-osório
4
brazil-são-leopoldo-rua-são-joaquim
7
brazil-são-leopoldo-rua-lindolfo-collor
68
brazil-são-leopoldo-rua-lindolfo-collor
28
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 2026-09-05T17:06 UTC.