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Air Quality History for Porto, Portugal

Historical PM2.5 and AQI trend from monitoring stations near Porto, Portugal.

20
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

376h

PM2.5 Station

376h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-06-09 23 6–43 5.6 µg/m³ 8.5 13h 1
2026-06-08 7 1–15 1.6 µg/m³ 0.8 18h 1
2026-06-07 18 2–35 4.2 µg/m³ 5.8 17h 1
2026-06-06 19 1–162 7.5 µg/m³ 8.6 13h 1
2026-06-05 6 1–19 1.4 µg/m³ 1.7 11h 1
2026-06-04 8 1–54 2.0 µg/m³ 2.5 13h 1
2026-06-03 4 1–17 0.9 µg/m³ 1.0 9h 1
2026-06-02 4 2–6 0.7 µg/m³ 0.6 4h 1
2026-06-01 27 5–82 7.3 µg/m³ 12.2 15h 1
2026-05-31 20 2–53 4.9 µg/m³ 7.1 21h 1
2026-05-30 46 10–61 12.1 µg/m³ 21.4 23h 1
2026-05-29 48 30–61 11.9 µg/m³ 20.4 24h 1
2026-05-28 38 19–58 9.3 µg/m³ 15.0 24h 1
2026-05-27 46 21–61 11.5 µg/m³ 17.9 24h 1
2026-05-26 34 11–58 8.2 µg/m³ 11.9 24h 1
2026-05-25 39 11–69 10.1 µg/m³ 16.6 24h 1
2026-05-24 35 12–59 8.5 µg/m³ 13.5 23h 1
2026-05-23 29 9–59 7.1 µg/m³ 10.8 24h 1
2026-05-22 28 6–49 6.6 µg/m³ 8.7 22h 1
2026-05-21 27 3–57 6.6 µg/m³ 9.7 21h 1
2026-05-20 16 11–24 3.8 µg/m³ 2.8 9h 1
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