What is the air quality in Rio das Ostras today?

The current Air Quality Index (AQI) in Rio das Ostras is 25 (Good). PM2.5 concentration is 6.0 µg/m³.

What is the temperature in Rio das Ostras right now?

The current temperature in Rio das Ostras is 18.8°C (feels like 18.8°C). Humidity is 92.9% and wind speed is 27.7 km/h.

Is it safe to go outside in Rio das Ostras?

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

Air Quality in Rio das Ostras, Brazil

Drizzle

18.8°C · 92.9% humidity

18.8°

Feels 18.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

— 5pm

—

— 8pm

—

— 11pm

—

— 2am

—

— 5am

—

— 8am

—

— 11am

—

— 2pm

—

View AQI history for Rio das Ostras →

Rio das Ostras's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.

92.9%

Humidity

27.7 km/h

Wind S

1018.4 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.0 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Rio das Ostras?

Temperature & Precipitation

PM2.56.0 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Rio das Ostras?

10-21

24.5° 17.4°

12.88 mm

10-22

24.7° 15.6°

8.5 mm

10-23

21.8° 18.9°

4.56 mm

10-24

28.4° 16.0°

1.5 mm

10-25

27.0° 17.6°

5.44 mm

10-26

21.5° 18.4°

7.69 mm

10-27

22.2° 20.3°

3.63 mm

Both models agree Avg diff: 3.4°C

What cities are near Rio das Ostras?

25 Macaé 24 Armação dos Búzios 25 Casimiro de Abreu 25 São Pedro da Aldeia 24 Cabo Frio 25 Iguaba Grande 25 Silva Jardim 24 Arraial do Cabo 25 Conceição de Macabu 25 Araruama

Get AQI alerts for Rio das Ostras

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

Free · No account · Unsubscribe any time

Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T23:32 UTC.