What is the air quality in Castelo Branco today?

The current Air Quality Index (AQI) in Castelo Branco is 19 (Good). PM2.5 concentration is 4.5 µg/m³.

What is the temperature in Castelo Branco right now?

The current temperature in Castelo Branco is 13.3°C (feels like 13.3°C). Humidity is 86.4% and wind speed is 22.9 km/h.

Is it safe to go outside in Castelo Branco?

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

Air Quality in Castelo Branco, Portugal

Cloudy

13.3°C · 86.4% humidity

13.3°

Feels 13.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

34 4am

19 7am

28 10am

23 1pm

24 4pm

25 7pm

27 10pm

27 1am

Air Quality Index Trend

48h · 1 stn

View full history →

Castelo Branco's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.

86.4%

Humidity

22.9 km/h

Wind NW

1017.8 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.5 µg/m³

PM10

20.55 µg/m³

050100150200300500

What is the weather forecast for Castelo Branco?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station

PM2.54.5 µg/m³ ✓ WHO

Good

PM1020.55 µg/m³

Good

UV INDEX0.7

Low

What is the 7-day forecast for Castelo Branco?

07-22

30.2° 13.3°

07-23

36.9° 16.5°

07-24

29.3° 17.0°

07-25

30.8° 15.4°

07-26

31.1° 13.4°

07-27

36.4° 14.4°

07-28

41.3° 16.7°

Both models agree Avg diff: 4.8°C

What cities are near Castelo Branco?

35 Covilhã 23 Portalegre 20 Guarda 33 Tomar 20 Sequeira 66 Santo António dos Olivais 65 Coimbra 66 São Paulo de Frades 53 Condeixa-a-Nova 65 Eiras

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

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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 2026-07-22T06:43 UTC.