Fine particles
31.6µg/m³Moderate · 1 hourCAMS model • Open-Meteo
BarcelonaAir quality, PM2.5 and PM10
Check PM2.5 and PM10 particle levels alongside ozone, nitrogen dioxide and other gases. Compare the latest available concentrations with recent days and explore changes in air pollution through the available historical records.
Barcelona - latest available concentrations (September 26, 2026, 03:00 local time): PM2.5: 31.6 µg/m³, PM10: 34.8 µg/m³, O₃: 23 µg/m³, NO₂: 75.7 µg/m³, SO₂: 6.7 µg/m³, CO: 240 µg/m³. These are hourly CAMS model values for a point representing the city.
Air quality questions →
1 weather warning in effect for Spain
Barcelona · Air pollutant concentrations
Data time: September 26, 2026 · 03:00 · local timeParticulate matter
34.8µg/m³Fair · 1 hourOzone
23µg/m³Good · 1 hourNitrogen dioxide
75.7µg/m³Poor · 1 hourSulphur dioxide
6.7µg/m³Good · 1 hourCarbon monoxide
240µg/m³PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
DAILY DATA · Barcelona
Barcelona - air pollution over recent days (2026-08-31 - 2026-09-25)
Concentrations of all available pollutants for this city.
PM2.5Lowest 8.67 2026-08-31Highest 14.64 2026-09-052026-08-31 - 2026-09-25
PM10Lowest 14.87 2026-09-19Highest 27.7 2026-09-052026-08-31 - 2026-09-25
O₃Lowest 51.71 2026-09-22Highest 66.04 2026-09-042026-08-31 - 2026-09-25
NO₂Lowest 27.83 2026-09-04Highest 42.76 2026-09-222026-08-31 - 2026-09-25
SO₂Lowest 2.84 2026-09-04Highest 4.13 2026-09-032026-08-31 - 2026-09-25
COLowest 151.96 2026-09-06Highest 214.21 2026-09-242026-08-31 - 2026-09-25
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-09-25 | 2026-09-24 | 2026-09-23 | 2026-09-22 | 2026-09-21 | 2026-09-20 | 2026-09-19 | 2026-09-07 | 2026-09-06 | 2026-09-05 | 2026-09-04 | 2026-09-03 | 2026-09-02 | 2026-09-01 | 2026-08-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 12.31 | 14.05 | 11.89 | 12.84 | 10.67 | 10.55 | 9.01 | 11.62 | 12.33 | 14.64 | 11.61 | 12.44 | 11.19 | 8.77 | 8.67 |
| PM10 | 18.86 | 21.44 | 19.12 | 20.71 | 17.25 | 15.68 | 14.87 | 19.68 | 22.89 | 27.7 | 22.46 | 21.3 | 18.5 | 14.97 | 15.63 |
| O₃ | 56.63 | 56 | 58.5 | 51.71 | 57.54 | 62.13 | 55.5 | 61.54 | 65.17 | 55.04 | 66.04 | 61.46 | 61.54 | 58.13 | 64.21 |
| NO₂ | 35.86 | 40.7 | 40.16 | 42.76 | 35.87 | 32.87 | 31.58 | 37.98 | 32.44 | 32.57 | 27.83 | 41.57 | 36.24 | 33.09 | 28.57 |
| SO₂ | 3.59 | 3.98 | 3.69 | 3.88 | 3.31 | 3.3 | 3.3 | 3.4 | 3.06 | 3.03 | 2.84 | 4.13 | 3.97 | 3.38 | 3.12 |
| CO | 188.08 | 214.21 | 209.92 | 195.04 | 191.25 | 188.58 | 186.21 | 152.29 | 151.96 | 157.75 | 157.13 | 177.92 | 170.04 | 163.96 | 155.79 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
AIR QUALITY ARCHIVE · Barcelona
Barcelona - air pollution history (2017-09 - 2020-05)
Compare monthly particle and gas concentrations in the available archive.
O₃Lowest 2.35 2019-11Highest 70.15 2020-042017-09 - 2020-05
NO₂Lowest 3.03 2019-11Highest 54.37 2017-112017-09 - 2020-05
SO₂Lowest 0.15 2019-10Highest 3.19 2017-092017-09 - 2020-05
COLowest 29.9 2019-11Highest 604 2017-112017-09 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 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 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| O₃ | 66.28 | 70.15 | 58.03 | 34.1 | 27 | 11.06 | 2.35 | 2.98 | 19.68 | 12.18 | 10.78 | 59.58 | 55.33 | 65.83 | 52.5 | 36.65 | 32.55 | — | — | — | 45.83 | — | 43.98 | 40.3 | — | — | — | — | 22.1 | — | 28.6 | 37.8 | 48.7 |
| NO₂ | 14.25 | 16.27 | 23.4 | 39.55 | 41.45 | 23.43 | 3.03 | 3.26 | 14.28 | 5.88 | 10.93 | 37.4 | 32.8 | 33.33 | 42.85 | 54.08 | 41.22 | — | — | — | 25.38 | — | 39.27 | 40.42 | 31.3 | — | — | — | 32.7 | — | 54.37 | 43.92 | 41.73 |
| SO₂ | 1.33 | 1.43 | 1.82 | 1.73 | 1.73 | 1.14 | 0.16 | 0.15 | 0.5 | 0.28 | 0.45 | 2.23 | 1.38 | 1.51 | 1.5 | 2.07 | 1.6 | — | — | — | 1.56 | 1 | 1.04 | 2.3 | 1 | — | — | — | 1.47 | — | 2.68 | 2.53 | 3.19 |
| CO | 200 | 256.67 | 276.33 | 391 | 425.33 | 255 | 29.9 | 32.33 | 119 | 61.73 | 77.9 | 280 | 312 | 325 | 384.33 | 311 | 420.33 | — | — | — | 233.33 | — | 264.67 | 210.5 | — | — | — | — | — | — | 604 | 404 | 386.33 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
Historical data by station 6
AIR QUALITY ARCHIVE · Barcelona (el Poblenou)
Barcelona (el Poblenou)
Station code: ES0691A
Monthly monitoring station data.
NO₂Lowest 3.16 2019-10Highest 58.5 2017-112017-09 - 2020-04
Scroll the chart or table sideways to see the full period.
| Pollutant | 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 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NO₂ | 11.8 | 23.4 | 42.3 | 43.1 | 23.4 | 3.45 | 3.16 | 12.4 | 5.03 | 11.1 | 37.3 | 33.1 | 32.1 | 44.5 | 54 | 43.7 | — | — | — | 27.9 | — | 42.7 | 48.7 | — | — | — | — | — | — | 58.5 | 44.7 | 41.3 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗EEA Spain
AIR QUALITY ARCHIVE · Barcelona (Sants)
Barcelona (Sants)
Station code: ES1396A
Monthly monitoring station data.
NO₂Lowest 3.26 2019-10Highest 47.6 2017-112017-09 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 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 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NO₂ | 9.5 | 19.1 | 21.4 | 36 | 37.7 | 18.3 | 3.29 | 3.26 | 14.4 | 4.23 | 9.16 | 28.1 | 26.2 | 29.2 | 38.6 | 45.3 | 35.6 | — | — | — | 19.4 | — | 30.3 | 38 | — | — | — | — | — | — | 47.6 | 37.5 | 32.6 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗EEA Spain
AIR QUALITY ARCHIVE · Barcelona (l'Eixample)
Barcelona (l'Eixample)
Station code: ES1438A
Monthly monitoring station data.
O₃Lowest 1.76 2019-11Highest 66.8 2020-042017-09 - 2020-05
NO₂Lowest 3.83 2019-11Highest 68.1 2017-112017-09 - 2020-05
SO₂Lowest 0.2 2019-10Highest 2.67 2019-062017-09 - 2020-05
COLowest 14 2019-02Highest 705 2017-112017-09 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 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 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| O₃ | 63.3 | 66.8 | 54.5 | 27.3 | 19.6 | 8.55 | 1.76 | 2.38 | 15.3 | 11 | 8.71 | 54.7 | 51.1 | 62.3 | 45.4 | 31 | 28.3 | — | — | — | 44.2 | — | 45.1 | — | — | — | — | — | 19.4 | — | — | — | — |
| NO₂ | 17.5 | 18.6 | 28.1 | 46.9 | 52.6 | 28.4 | 3.83 | 4.25 | 21.9 | 8.35 | 13.5 | 50 | 45.7 | 45.1 | 52.1 | 64.3 | 52.1 | — | — | — | 32 | — | 41.6 | 50.2 | — | — | — | — | — | — | 68.1 | 60.4 | 57.4 |
| SO₂ | — | 1.3 | 1.84 | 1.52 | 1.6 | 1.29 | 0.22 | 0.2 | 0.52 | 0.29 | 0.67 | 2.67 | 1.47 | 2.01 | 1.76 | 1.73 | 1.57 | — | — | — | 1.04 | — | 1.08 | — | — | — | — | — | — | — | 2.41 | 2.51 | 1.55 |
| CO | — | 200 | 232 | 299 | 349 | 174 | 27.7 | 31.6 | 114 | 69.7 | 79.6 | 308 | 363 | 369 | 405 | 14 | 357 | — | — | — | 246 | — | 282 | — | — | — | — | — | — | — | 705 | 485 | 457 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗EEA Spain
AIR QUALITY ARCHIVE · Barcelona (Gràcia - Sant Gervasi)
Barcelona (Gràcia - Sant Gervasi)
Station code: ES1480A
Monthly monitoring station data.
O₃Lowest 2.38 2019-11Highest 71.2 2020-042017-09 - 2020-05
NO₂Lowest 2.85 2019-11Highest 66.4 2019-022017-09 - 2020-05
SO₂Lowest 0.16 2019-10Highest 5.83 2017-092017-09 - 2020-05
COLowest 34.3 2019-11Highest 586 2019-022017-09 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 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 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| O₃ | 65 | 71.2 | 58.6 | 33.1 | 27.5 | 10.2 | 2.38 | 3.09 | 19.9 | 11 | 11.5 | 55.3 | 49.2 | 59.7 | 46.6 | 34.3 | 28.9 | — | — | — | 50.9 | — | 51.5 | 32.5 | — | — | — | — | — | — | — | — | — |
| NO₂ | 19 | 20.1 | 27.5 | 45.5 | 47 | 28 | 2.85 | 3.9 | 15.5 | 7.99 | 12.3 | 51.6 | 38.1 | 38.1 | 53.4 | 66.4 | 45 | — | — | — | 26.9 | — | 43.5 | — | — | — | — | — | — | — | 65.4 | 52.1 | 51.1 |
| SO₂ | — | 2 | 2.51 | 2.52 | 2.15 | 0.83 | 0.17 | 0.16 | 0.44 | 0.23 | 0.28 | 2.26 | 1.33 | 1.35 | 1.4 | 2.96 | 1.77 | — | — | — | 2.62 | — | 1.02 | 2.52 | — | — | — | — | 1.47 | — | 4.13 | 2.98 | 5.83 |
| CO | 200 | 250 | 300 | 506 | 492 | 316 | 34.3 | 41.2 | 141 | 64.8 | 83.4 | 319 | 340 | 348 | 421 | 586 | 462 | — | — | — | 234 | — | 305 | 221 | — | — | — | — | — | — | 557 | 393 | 408 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗EEA Spain
AIR QUALITY ARCHIVE · Barcelona (Ciutadella)
Barcelona (Ciutadella)
Station code: ES1679A
Monthly monitoring station data.
O₃Lowest 2.02 2019-11Highest 68.5 2020-052017-09 - 2020-05
NO₂Lowest 2.29 2019-10Highest 47.7 2017-112017-09 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 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 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| O₃ | 68.5 | 67.1 | 56.2 | 32.7 | 23.6 | 8.88 | 2.02 | 3.21 | 20.4 | 12.5 | 10 | 54.9 | 53 | 65.5 | 51.9 | 35.1 | 29.8 | — | — | — | 32 | — | 34.2 | 35.8 | — | — | — | — | 24.8 | — | 21.6 | 33.9 | 46.8 |
| NO₂ | 11 | 12.7 | 19.1 | 36.4 | 38.7 | 19.5 | 2.85 | 2.29 | 10.3 | 5.07 | 8.7 | 35.7 | 28.7 | 27.9 | 36 | 47.5 | 40.5 | — | — | — | 28.9 | — | 40.9 | 36.2 | — | — | — | — | 35.4 | — | 47.7 | 34.9 | 34.9 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗EEA Spain
AIR QUALITY ARCHIVE · Barcelona (parc de la Vall d'Hebron)
Barcelona (parc de la Vall d'Hebron)
Station code: ES1856A
Monthly monitoring station data.
O₃Lowest 3.24 2019-11Highest 75.8 2019-042017-09 - 2020-05
NO₂Lowest 1.92 2019-11Highest 47 2019-022017-09 - 2020-05
SO₂Lowest 0.1 2019-11Highest 2.18 2017-092017-09 - 2020-05
COLowest 24.2 2019-10Highest 550 2017-112017-09 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 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 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| O₃ | 68.3 | 75.5 | 62.8 | 43.3 | 37.3 | 16.6 | 3.24 | 3.25 | 23.1 | 14.2 | 12.9 | 73.4 | 68 | 75.8 | 66.1 | 46.2 | 43.2 | — | — | — | 56.2 | — | 45.1 | 52.6 | — | — | — | — | — | — | 35.6 | 41.7 | 50.6 |
| NO₂ | — | 15.3 | 20.9 | 30.2 | 29.6 | 23 | 1.92 | 2.7 | 11.2 | 4.58 | 10.8 | 21.7 | 25 | 27.6 | 32.5 | 47 | 30.4 | — | — | — | 17.2 | — | 36.6 | 29 | 31.3 | — | — | — | 30 | — | 38.9 | 33.9 | 33.1 |
| SO₂ | 1.33 | 1 | 1.12 | 1.16 | 1.45 | 1.29 | 0.1 | 0.11 | 0.54 | 0.31 | 0.4 | 1.76 | 1.34 | 1.18 | 1.33 | 1.53 | 1.45 | — | — | — | 1.02 | 1 | 1.03 | 2.08 | 1 | — | — | — | — | — | 1.5 | 2.1 | 2.18 |
| CO | — | 320 | 297 | 368 | 435 | 275 | 27.7 | 24.2 | 102 | 50.7 | 70.7 | 213 | 233 | 258 | 327 | 333 | 442 | — | — | — | 220 | — | 207 | 200 | — | — | — | — | — | — | 550 | 334 | 294 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗EEA Spain
Environment and quality of life ratings · Barcelona
Archived ratings of the local environment: green spaces, cleanliness, noise and water quality. Opinion indicators are separate from pollutant concentration measurements.
| Indicator | Barcelona | Andorra | France | Italy | Switzerland | San Marino |
|---|---|---|---|---|---|---|
| Green and Parks in the City | 51% | 69% | 61% | 53% | 76% | 75% |
| particulate matter PM2.5 (µg/m³) | 14 | — | — | — | — | — |
| Pleasure of spending time in the city | 51% | 84% | 68% | 56% | 84% | 100% |
| particulate matter PM10 (µg/m³) | 24 | — | — | — | — | — |
| Air Pollution | 62% | 29% | 36% | 50% | 20% | 6.8% |
| Garbage Disposal | 69% | 89% | 59% | 51% | 82% | 50% |
| Availability and quality of drinking water | 49% | 100% | 73% | 69% | 90% | 100% |
| Cleanliness and tidiness | 54% | 75% | 48% | 45% | 82% | 75% |
| Noise and Light pollution | 63% | 29% | 54% | 48% | 38% | 75% |
| Water Pollution | 48% | 19% | 39% | 41% | 19% | 0% |
Air quality in nearby cities
All cities →France↗
Toulouse
PM2.57.9
PM1013
µg/m³
PM2.5 · FairNO₂ 3.7O₃ 67
September 26, 202603:00
Spain↗
Zaragoza
PM2.56.1
PM1011.7
µg/m³
PM2.5 · FairNO₂ 4.1O₃ 73
September 26, 202603:00
Spain↗
Palma
PM2.58.2
PM1013.4
µg/m³
PM2.5 · FairNO₂ 16.6O₃ 43
September 26, 202603:00
Spain↗
Valencia
PM2.512
PM1017.8
µg/m³
PM2.5 · FairNO₂ 27O₃ 63
September 26, 202603:00
Spain↗
Alicante
PM2.58.1
PM1012.8
µg/m³
PM2.5 · FairNO₂ 6.6O₃ 94
September 26, 202603:00
Spain↗
Elche
PM2.59.9
PM1016.7
µg/m³
PM2.5 · FairNO₂ 16.3O₃ 46
September 26, 202603:00
Spain↗
Vitoria-Gasteiz
PM2.58.7
PM1012.8
µg/m³
PM2.5 · FairNO₂ 4.4O₃ 72
September 26, 202603:00
Spain↗
Murcia
PM2.510.1
PM1020.2
µg/m³
PM2.5 · FairNO₂ 17.4O₃ 52
September 26, 202603:00
Spain · air quality in other cities
WEATHER & SURROUNDINGS
Barcelona · weather forecast
Daily maximum and minimum temperatures. Forecast point: 41.3888, 2.159.
Scroll the forecast to see the following days.
Barcelona · September 23, 2026: minimum temperature 20.9°C, maximum 29.4°C. Wind: 11.7 km/h. Humidity: 27%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-09-23 | 29.4 | 20.9 | 29.4 | 22.9 | 0.1 | 3.3 | 27 | 22 |
| 2026-09-24 | 30.4 | 20.3 | 30.8 | 23.2 | — | 3.3 | 29 | 29 |
| 2026-09-25 | 29.1 | 21.2 | 29.9 | 23.1 | — | 3.4 | 44 | 22 |
| 2026-09-26 | 27.3 | 21.6 | 28.5 | 21.6 | — | 2.8 | 45 | 28 |
| 2026-09-27 | 28.1 | 16.8 | 28.6 | 22.7 | 0.4 | 3 | 50 | 97 |
| 2026-09-28 | 26.1 | 19.8 | 26.1 | 22.3 | 1.4 | 3.2 | 61 | 96 |
| 2026-09-29 | 27.2 | 19.2 | 27.2 | 22.8 | 0.8 | 3.3 | 54 | 30 |
| 2026-09-30 | 27.3 | 20.4 | 27.3 | 24.7 | 1.4 | 3 | 64 | 84 |
| 2026-10-01 | 23.7 | 20.8 | 24.1 | 20.8 | 17.9 | 5.1 | 76 | 100 |
| 2026-10-02 | 20.9 | 20.1 | 22.4 | 21.7 | 20.4 | 6.6 | 74 | 100 |
| 2026-10-03 | 24.1 | 20.7 | 24.1 | 22.2 | 0.3 | 6.4 | 49 | 94 |
| 2026-10-04 | 22.8 | 20.5 | 22.8 | 21.7 | 0.8 | 4.2 | 59 | 97 |
| 2026-10-05 | 22.9 | 20.3 | 22.9 | 21.8 | 0.2 | 3.3 | 54 | 6 |
| 2026-10-06 | 23.5 | 20.5 | 23.6 | 22.8 | 0.3 | 3.2 | 56 | 71 |
| 2026-10-07 | 22.1 | 21.5 | 22.5 | 21.6 | 3.2 | 4.3 | 76 | 99 |
| 2026-10-08 | 23.7 | 20.3 | 23.7 | 22.3 | 5.3 | 4.1 | 59 | 1 |
| 2026-10-09 | 23.6 | 20.6 | 23.6 | 21 | 5.4 | 4.5 | 57 | 59 |
| 2026-10-10 | 21.3 | 18.5 | 21.3 | 21.3 | 4.6 | 5.1 | 67 | 92 |
UV index by day · Barcelona
City data.
Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme
Scroll the forecast to see the following days.
Barcelona · September 25, 2026: UV index: 5.6 .
| Indicator | 2026-09-25 | 2026-09-26 | 2026-09-27 | 2026-09-28 | 2026-09-29 | 2026-09-30 | 2026-10-01 | 2026-10-02 | 2026-10-03 | 2026-10-04 | 2026-10-05 | 2026-10-06 | 2026-10-07 | 2026-10-08 | 2026-10-09 | 2026-10-10 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 5.6 | 5.5 | 4.8 | 4.7 | 5.2 | 4.5 | 4.5 | 4.2 | 3.9 | 4.4 | 3.8 | 4.2 | 4.7 | 3.5 | 3.8 | — |
Sea temperature and waves · Spain
Data for a selected coastal point.
Scroll the forecast to see the following days.
Spain · September 25, 2026: Sea temperature (°C): 25.9 . Wave height (m): 0.4 .
| Indicator | 2026-09-25 | 2026-09-26 | 2026-09-27 | 2026-09-28 | 2026-09-29 | 2026-09-30 | 2026-10-01 | 2026-10-02 | 2026-10-03 | 2026-10-04 | 2026-10-05 | 2026-10-06 | 2026-10-07 | 2026-10-08 | 2026-10-09 | 2026-10-10 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 25.9 | 25.9 | 25.9 | 25.7 | 25.7 | 25.7 | 25.7 | 25.6 | 25.5 | — | — | — | — | — | — | — |
| Wave height (m) | 0.4 | 0.7 | 0.3 | 0.9 | 1 | 0.9 | 0.6 | 1.6 | 0.9 | — | — | — | — | — | — | — |
Sea temperature throughout the year · Spain
Monthly climate values for a selected coastal area (°C).
15.5°Jan
14.4°Feb
14.8°Mar
16.3°Apr
19.4°May
23.8°Jun
26.7°Jul
27.5°Aug
25.5°Sep
22.8°Oct
19.4°Nov
16.4°Dec
| °C | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea | 15.5 | 14.4 | 14.8 | 16.3 | 19.4 | 23.8 | 26.7 | 27.5 | 25.5 | 22.8 | 19.4 | 16.4 |
AIR QUALITY QUESTIONS
Barcelona · air pollution - questions and answers
What do the latest air quality data show for Barcelona?
Barcelona - latest available concentrations (September 26, 2026, 03:00 local time): PM2.5: 31.6 µg/m³, PM10: 34.8 µg/m³, O₃: 23 µg/m³, NO₂: 75.7 µg/m³, SO₂: 6.7 µg/m³, CO: 240 µg/m³. These are hourly CAMS model values for a point representing the city.
When was PM2.5 highest in Barcelona over the past week?
The highest available daily mean PM2.5 was 14.1 µg/m³ (September 24, 2026). This comparison covers 7 days with data in the seven days before September 26, 2026. The day of the latest reading is excluded because it may be incomplete.
What period does the pollution history for Barcelona cover?
Available monthly means cover 2017-09 - 2020-05. The tables include O₃, NO₂, SO₂, CO. Missing values are marked with a dash, not treated as zero. Monthly archives and current model data may come from different sources.
Is the PM2.5 concentration for Barcelona an AQI score?
No. PM2.5 and PM10 are concentrations in µg/m³. AQI is a separate index calculated using a defined scale. When comparing air quality, also check other pollutants, the date and the averaging period.
What UV index does the available forecast show for Barcelona?
For September 25, 2026, the forecast UV index is 5.6. The UV section also shows the following available days.
What wind speed is forecast for Barcelona?
For September 23, 2026, forecast wind speed is 11.7 km/h. The weather table includes wind, temperature and other available parameters for subsequent days.
PM2.5 · PM10 · NO₂ · O₃
Understanding air quality and pollution data
What do PM2.5 and PM10 mean?
PM2.5 and PM10 are fractions of airborne particulate matter. PM2.5 covers fine particles up to 2.5 micrometres in diameter, while PM10 covers particles up to 10 micrometres. Concentrations in µg/m³ tell you how many micrograms of particles are present in a cubic metre of air. Compare values over the same time period.
Where does the air pollution data come from?
The latest concentrations come from the CAMS atmospheric model via Open-Meteo for each city’s coordinates. Values describe a model area, so conditions on individual streets may differ. Historical monitoring station data is shown separately where available.
How does PM2.5 concentration differ from AQI?
PM2.5 is the concentration of one particle fraction, expressed in µg/m³. AQI is an index calculated using a particular scale and thresholds. The pollutant cards show concentrations. Our city ranking compares PM2.5; PM10, ozone, nitrogen dioxide and other available gases add to the picture of air quality.
Which dates do the values and charts cover?
Each current value has a data date and time. Current concentration cards show the latest available hour, daily charts summarise individual days, and monthly records let you compare longer periods. These values represent different time intervals.
How can I check pollution in my city?
Search for your city and open its air quality page. Start with PM2.5 and PM10, then check the other available pollutants and the data timestamp. Charts and tables help you compare concentrations over time. Weather and historical climate information complement the pollution data.