What is the air quality in São Sebastião do Caí today?

The current Air Quality Index (AQI) in São Sebastião do Caí is 12 (Good). PM2.5 concentration is 2.97 µg/m³.

What is the temperature in São Sebastião do Caí right now?

The current temperature in São Sebastião do Caí is 7.8°C (feels like 7.8°C). Humidity is 91.7% and wind speed is 2.6 km/h.

Is it safe to go outside in São Sebastião do Caí?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in São Sebastião do Caí, Brazil

Overcast

7.8°C · 91.7% humidity

7.8°

Feels 7.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

26 9pm

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Station readings

Air Quality Index Trend

46h · 5 stn

View full history →

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.

91.7%

Humidity

2.6 km/h

Wind NNE

1021.9 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

2.97 µg/m³

PM10▲

13.7 µg/m³

050100150200300500

What is the weather forecast for São Sebastião do Caí?

Temperature & Precipitation

PM2.5 Trend

46h · 5 stations

PM2.52.97 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (1 station within 25 km)

2.97

Median

2.97

Average

2.97

Low

2.97

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +3.0

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

10-22

18.3° 7.8°

9.38 mm

10-23

29.0° 12.7°

10-24

18.0° 13.5°

17.44 mm

10-25

19.2° 7.9°

1.81 mm

10-26

20.1° 10.4°

1.5 mm

10-27

27.8° 14.1°

1.0 mm

10-28

27.7° 10.1°

0.25 mm

Both models agree Avg diff: 4.4°C

Where are air quality stations near São Sebastião do Caí?

brazil-novo-hamburgo-rua-osório

25.0 km PM2.5: 1.8 µg/m³ PM10: 2.5 µg/m³

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brazil-dois-irmãos-rua-marília

25.1 km PM2.5: 0.0 µg/m³ PM10: 2.1 µg/m³

brazil-são-leopoldo-rua-são-joaquim

29.8 km PM2.5: 1.5 µg/m³ PM10: 2.3 µg/m³

brazil-são-leopoldo-rua-são-paulo

30.2 km PM2.5: 2.0 µg/m³ PM10: 4.9 µg/m³

brazil-são-leopoldo-rua-lindolfo-collor

30.2 km PM2.5: 2.7 µg/m³ PM10: 7.4 µg/m³

brazil-são-leopoldo-rua-lindolfo-collor

30.3 km PM2.5: 6.5 µg/m³ PM10: 8.0 µg/m³

brazil-são-leopoldo-rua-lindolfo-collor

30.3 km PM2.5: 20.8 µg/m³ PM10: 23.5 µg/m³

brazil-são-leopoldo-rua-américa

31.1 km PM2.5: 13.6 µg/m³ PM10: 14.4 µg/m³

What cities are near São Sebastião do Caí?

24 Montenegro 21 Portão 18 Estância Velha 20 Ivoti 15 Novo Hamburgo 21 Dois Irmãos 13 São Leopoldo 26 Nova Santa Rita 30 Campo Bom 28 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 2026-10-22T03:08 UTC.