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

The current Air Quality Index (AQI) in São Sebastião do Caí is 20 (Good). PM2.5 concentration is 4.66 µg/m³.

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

The current temperature in São Sebastião do Caí is 12.8°C (feels like 12.8°C). Humidity is 98.8% and wind speed is 17.3 km/h.

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

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in São Sebastião do Caí, Brazil

Overcast

12.8°C · 98.8% humidity

12.8°

Feels 12.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast Calibrated

21 4pm

20 7pm

20 10pm

21 1am

21 4am

21 7am

21 10am

21 1pm

Station readings

CAMS model adj -4

Air Quality Index Trend

47h · 4 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.

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▲

4.66 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 stations

PM2.54.66 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (1 station within 25 km)

4.66

Median

4.66

Average

4.66

Low

4.66

High

PM2.5 µg/m³ · Model: 5.9 · Bias: +1.2

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?

brazil-novo-hamburgo-rua-osório

25.0 km PM2.5: 1.8 µg/m³ PM10: 2.2 µg/m³

brazil-são-leopoldo-rua-são-joaquim

29.8 km PM2.5: 0.7 µg/m³ PM10: 0.9 µg/m³

brazil-são-leopoldo-rua-lindolfo-collor

30.2 km PM2.5: 0.7 µg/m³ PM10: 0.7 µg/m³

brazil-são-leopoldo-rua-américa

31.1 km PM2.5: 3.3 µg/m³ PM10: 3.5 µg/m³

What cities are near São Sebastião do Caí?

16 Montenegro 16 Portão 17 Estância Velha 16 Ivoti 18 Novo Hamburgo 15 Dois Irmãos 10 São Leopoldo 16 Nova Santa Rita 14 Campo Bom 15 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 2026-07-21T22:20 UTC.