Barcelona: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

Latest air quality data: Barcelona
Pollution and air quality forecast for Barcelona. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Barcelona:
  1. particulate matter (PM2.5) dust - 20 (Moderate)
  2. particulate matter (PM10) suspended dust - 34 (Moderate)
  3. ozone (O3) - 18 (Good)
  4. nitrogen dioxide (NO2) - 62 (Moderate)
  5. sulfur dioxide (SO2) - 5 (Good)
  6. carbon monoxide (CO) - 167 (Good)
Real-time Air Quality Index (AQI) for Barcelona, Thursday, August 27, 2026: 2.

air quality index: 1
AQI 2 Moderate

What is the air quality in Barcelona today? Is the air polluted in Barcelona?. Is there smog?

Today (Thursday, August 27, 2026) air quality is moderate in Barcelona. Some pollutants in Barcelona may slightly affect very few hypersensitive individuals. Air pollutants in Barcelona may cause minor breathing discomfort to sensitive people.


What is the current level of PM2.5 in Barcelona? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 20 (Moderate) For comparison, the highest level of PM2.5 in Barcelona in the last 7 days was: 15 (Thursday, August 27, 2026) and the lowest: 4 (Saturday, August 22, 2026).

What is the level of PM10 today in Barcelona? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Barcelona is: 34 (Moderate)

How is the O3 level today in Barcelona? (ozone (O3))
18 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
62 (Moderate)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
5 (Good)

How high is the CO level? (carbon monoxide (CO))
167 (Good)



Current data Thursday, August 27, 2026 at 3:00 AM

PM2,5 20 (Moderate)

PM10 34 (Moderate)

O3 18 (Good)

NO2 62 (Moderate)

SO2 5 (Good)

CO 167 (Good)

Data on air pollution from recent days in Barcelona

index 2026-08-27 2026-08-26 2026-08-25 2026-08-24 2026-08-23 2026-08-22 2026-08-21 2026-08-20
pm25 15
Moderate
9
Good
7
Good
9
Good
6
Good
4
Good
7
Good
14
Moderate
pm10 31
Moderate
20
Moderate
13
Good
15
Good
12
Good
8
Good
11
Good
26
Moderate
o3 57
Good
52
Good
59
Good
58
Good
63
Good
62
Good
73
Moderate
73
Moderate
no2 33
Good
37
Good
22
Good
31
Good
23
Good
13
Good
15
Good
23
Good
so2 3
Good
3
Good
2
Good
3
Good
3
Good
1
Good
1
Good
2
Good
co 149
Good
157
Good
146
Good
158
Good
153
Good
145
Good
135
Good
146
Good
data source »

Air pollution in Barcelona from May 2018 to April 2020

index 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-09 2018-07 2018-06 2017-11 2017-10 2017-09 2020-05 2018-01 2018-08 2018-05
no2 16 (Good) 23 (Good) 40 (Good) 41 (Moderate) 23 (Good) 3 (Good) 3.3 (Good) 14 (Good) 5.9 (Good) 11 (Good) 37 (Good) 33 (Good) 33 (Good) 43 (Moderate) 54 (Moderate) 41 (Moderate) 25 (Good) 39 (Good) 40 (Moderate) 54 (Moderate) 44 (Moderate) 42 (Moderate) 14 (Good) 33 (Good) - (Good) 31 (Good)
so2 1.4 (Good) 1.8 (Good) 1.7 (Good) 1.7 (Good) 1.1 (Good) 0.16 (Good) 0.15 (Good) 0.5 (Good) 0.28 (Good) 0.45 (Good) 2.2 (Good) 1.4 (Good) 1.5 (Good) 1.5 (Good) 2.1 (Good) 1.6 (Good) 1.6 (Good) 1 (Good) 2.3 (Good) 2.7 (Good) 2.5 (Good) 3.2 (Good) 1.3 (Good) 1.5 (Good) 1 (Good) 1 (Good)
co 257 (Good) 276 (Good) 391 (Good) 425 (Good) 255 (Good) 30 (Good) 32 (Good) 119 (Good) 62 (Good) 78 (Good) 280 (Good) 312 (Good) 325 (Good) 384 (Good) 311 (Good) 420 (Good) 233 (Good) 265 (Good) 211 (Good) 604 (Good) 404 (Good) 386 (Good) 200 (Good) - (Good) - (Good) - (Good)
o3 70 (Moderate) 58 (Good) 34 (Good) 27 (Good) 11 (Good) 2.4 (Good) 3 (Good) 20 (Good) 12 (Good) 11 (Good) 60 (Good) 55 (Good) 66 (Good) 53 (Good) 37 (Good) 33 (Good) 46 (Good) 44 (Good) 40 (Good) 29 (Good) 38 (Good) 49 (Good) 66 (Good) 22 (Good) - (Good) - (Good)
data source »

Quality of life in Barcelona

Green and Parks in the City

Barcelona 51%

Andorra: 69% France: 61% Italy: 53% Switzerland: 76% San Marino: 75%

particulate matter PM2.5

Barcelona 14 (Moderate)

Pleasure of spending time in the city

Barcelona 51%

Andorra: 84% France: 68% Italy: 56% Switzerland: 84% San Marino: 100%

particulate matter PM10

Barcelona 24 (Moderate)

Air Pollution

Barcelona 62%

Andorra: 29% France: 36% Italy: 50% Switzerland: 20% San Marino: 6.8%

Garbage Disposal

Barcelona 69%

Andorra: 89% France: 59% Italy: 51% Switzerland: 82%

Availability and quality of drinking water

Barcelona 49%

Andorra: 100% France: 73% Italy: 69% Switzerland: 90% San Marino: 100%

Cleanliness and tidiness

Barcelona 54%

Andorra: 75% France: 48% Italy: 45% Switzerland: 82% San Marino: 75%

Noise and Light pollution

Barcelona 63%

Andorra: 29% France: 54% Italy: 48% Switzerland: 38% San Marino: 75%

Water Pollution

Barcelona 48%

Andorra: 19% France: 39% Italy: 41% Switzerland: 19% San Marino: 0%
Source: Numbeo


Barcelona

Thursday, August 27, 2026 at 3:00 AM

PM2,5 20 (Moderate)

particulate matter (PM2.5) dust

PM10 34 (Moderate)

particulate matter (PM10) suspended dust

O3 18 (Good)

ozone (O3)

NO2 62 (Moderate)

nitrogen dioxide (NO2)

SO2 4.9 (Good)

sulfur dioxide (SO2)

CO 167 (Good)

carbon monoxide (CO)

Barcelona

index 2026-08-20 2026-08-21 2026-08-22 2026-08-23 2026-08-24 2026-08-25 2026-08-26 2026-08-27
pm25 14 6.7 4.2 6.3 8.7 7.5 9.1 15
pm10 26 11 8 12 15 13 20 31
o3 73 73 62 63 58 59 52 57
no2 23 15 13 23 31 22 37 33
so2 2.2 1.3 1.4 2.7 3 2.2 3.1 3.3
co 146 135 145 153 158 146 157 149

ES0691A

index 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-09 2018-07 2018-06 2017-11 2017-10 2017-09
no2 12 23 42 43 23 3.5 3.2 12 5 11 37 33 32 45 54 44 28 43 49 59 45 41

ES1396A

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-09 2018-07 2018-06 2017-11 2017-10 2017-09
no2 9.5 19 21 36 38 18 3.3 3.3 14 4.2 9.2 28 26 29 39 45 36 19 30 38 48 38 33

ES1438A

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-09 2018-07 2018-06 2018-01 2017-11 2017-10 2017-09
co - 200 232 299 349 174 28 32 114 70 80 308 363 369 405 14 357 246 282 - - 705 485 457
so2 - 1.3 1.8 1.5 1.6 1.3 0.22 0.2 0.52 0.29 0.67 2.7 1.5 2 1.8 1.7 1.6 1 1.1 - - 2.4 2.5 1.6
no2 18 19 28 47 53 28 3.8 4.3 22 8.3 14 50 46 45 52 64 52 32 42 50 - 68 60 57
o3 63 67 55 27 20 8.6 1.8 2.4 15 11 8.7 55 51 62 45 31 28 44 45 - 19 - - -

ES1480A

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-09 2018-07 2018-06 2018-01 2017-11 2017-10 2017-09
co 200 250 300 506 492 316 34 41 141 65 83 319 340 348 421 586 462 234 305 221 - 557 393 408
so2 - 2 2.5 2.5 2.1 0.83 0.17 0.16 0.44 0.23 0.28 2.3 1.3 1.4 1.4 3 1.8 2.6 1 2.5 1.5 4.1 3 5.8
no2 19 20 28 46 47 28 2.9 3.9 16 8 12 52 38 38 53 66 45 27 44 - - 65 52 51
o3 65 71 59 33 28 10 2.4 3.1 20 11 12 55 49 60 47 34 29 51 52 33 - - - -

ES1679A

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-09 2018-07 2018-06 2018-01 2017-11 2017-10 2017-09
o3 69 67 56 33 24 8.9 2 3.2 20 13 10 55 53 66 52 35 30 32 34 36 25 22 34 47
no2 11 13 19 36 39 20 2.9 2.3 10 5.1 8.7 36 29 28 36 48 41 29 41 36 35 48 35 35

ES1856A

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-09 2018-08 2018-07 2018-06 2018-05 2018-01 2017-11 2017-10 2017-09
co - 320 297 368 435 275 28 24 102 51 71 213 233 258 327 333 442 220 - 207 200 - - 550 334 294
no2 - 15 21 30 30 23 1.9 2.7 11 4.6 11 22 25 28 33 47 30 17 - 37 29 31 30 39 34 33
o3 68 76 63 43 37 17 3.2 3.3 23 14 13 73 68 76 66 46 43 56 - 45 53 - - 36 42 51
so2 1.3 1 1.1 1.2 1.4 1.3 0.1 0.11 0.54 0.31 0.4 1.8 1.3 1.2 1.3 1.5 1.4 1 1 1 2.1 1 - 1.5 2.1 2.2

* Pollution data source: https://openaq.org (EEA Spain) The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — Barcelona

🌦️ WEATHER · 16-DAY FORECASTBarcelona🌧️30°RainToday · ↑30° ↓24°💨 9 km/h · 💧 67%Mon24.08🌧️30°24°Tue25.08🌧️36°23°Wed26.08☁️30°24°Thu27.08☁️32°24°Fri28.08☁️30°27°Sat29.08☀️27°24°Sun30.08☀️28°25°Mon31.08☀️29°25°Tue1.09☀️29°25°Wed2.09☀️28°26°Thu3.09☁️29°26°Fri4.09☀️28°26°Sat5.09🌤️28°25°Sun6.09☁️29°25°Mon7.09☀️29°27°Tue8.09☁️29°27°pollution-alert.com · August 27, 2026

16-day weather forecast for Barcelona: today around 30°C (rain), lows near 24°C. Daily temperature and conditions, updated every day. Strong wind (about 32 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — Barcelona

☀️ UV INDEX · 16-DAY FORECASTBarcelona03681111+6UV HIGHtoday, day maxSPF 30-50, hat and sunglasses are a must. Better tostay in the shade 11:00-15:00.⏱ Unprotected fair skin can burn in about 35 min6Wed26.087Thu27.086Fri28.087Sat29.087Sun30.087Mon31.085Tue1.097Wed2.097Thu3.097Fri4.097Sat5.096Sun6.096Mon7.096Tue8.096Wed9.096Thu10.090-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com · August 27, 2026

The UV index in Barcelona today is 6 (high) — unprotected fair skin can burn in about 35 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Barcelona — compare nearby locations.

Frequently asked questions

Is the air safe to breathe in Barcelona today?
The current average PM2.5 across Barcelona is about 20 µg/m³, rated “Moderate”. Air quality is acceptable, but unusually sensitive people should limit prolonged outdoor exertion.
What is the current PM2.5 level in Barcelona?
Right now PM2.5 in Barcelona averages about 20 µg/m³ (“Moderate”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.
Which day last week had the worst air in Barcelona?
Over the past week, the highest daily PM2.5 in Barcelona was recorded on Thursday, August 27 (about 15 µg/m³).
What is the UV index in Barcelona today?
The UV index in Barcelona today is 6 (high) — unprotected fair skin can burn in about 35 minutes.
Does today's wind help disperse smog in Barcelona?
Strong wind (about 32 km/h) is actively clearing smog and dust away.
How is air quality measured?
Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.