SmogRank / Senegal / Dakar

Air quality in Dakar

Dakar, Senegal. PM2.5 from 7 low-cost sensors, updated hourly.

1.3 µg/m³
Good

Latest hour (03:00 UTC), 0.1× the WHO 24-hour guideline.

Rank

24 h
–
not enough data
7 days
#1,951
of 2,341 · 4.6 µg/m³
30 days
#362
of 2,337 · 10.8 µg/m³
Year
#376
of 2,166 · 13.1 µg/m³

Why it ranks here

Seasonal. Over the past year its worst months were February, April, May, averaging up to 20.3 µg/m³ against 9.1 in its cleanest month. Seasonal peaks usually come from heating, crop burning, fire or dust seasons.

Based on Dakar's own measurements; causes are the usual kinds for a pattern like this, not a confirmed source.

Last 4 days, hour by hour

15302026-10-01 00:00 UTC: 6.8 µg/m³2026-10-01 01:00 UTC: 3.2 µg/m³2026-10-01 02:00 UTC: 1.7 µg/m³2026-10-01 03:00 UTC: 1.3 µg/m³Sep 28Sep 29Sep 30

Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Every day for a year

SepNovDecJanFebMarAprMayJunJulAugSepMonWedFri2025-09-29: no data2025-09-30: no data2025-10-01: no data2025-10-02: no data2025-10-03: no data2025-10-04: no data2025-10-05: no data2025-10-06: no data2025-10-07: no data2025-10-08: no data2025-10-09: no data2025-10-10: no data2025-10-11: no data2025-10-12: no data2025-10-13: no data2025-10-14: no data2025-10-15: no data2025-10-16: no data2025-10-17: no data2025-10-18: no data2025-10-19: no data2025-10-20: no data2025-10-21: no data2025-10-22: no data2025-10-23: no data2025-10-24: no data2025-10-25: no data2025-10-26: no data2025-10-27: no data2025-10-28: no data2025-10-29: no data2025-10-30: no data2025-10-31: no data2025-11-01: no data2025-11-02: no data2025-11-03: no data2025-11-04: no data2025-11-05: no data2025-11-06: no data2025-11-07: no data2025-11-08: no data2025-11-09: no data2025-11-10: no data2025-11-11: no data2025-11-12: no data2025-11-13: no data2025-11-14: no data2025-11-15: no data2025-11-16: no data2025-11-17: no data2025-11-18: 22.4 µg/m³2025-11-19: 17.7 µg/m³2025-11-20: no data2025-11-21: no data2025-11-22: no data2025-11-23: no data2025-11-24: no data2025-11-25: 32.5 µg/m³2025-11-26: 19.9 µg/m³2025-11-27: 7.8 µg/m³2025-11-28: 8.6 µg/m³2025-11-29: 7.4 µg/m³2025-11-30: 7.1 µg/m³2025-12-01: 14.8 µg/m³2025-12-02: no data2025-12-03: no data2025-12-04: no data2025-12-05: no data2025-12-06: no data2025-12-07: no data2025-12-08: no data2025-12-09: 11.6 µg/m³2025-12-10: 6.0 µg/m³2025-12-11: 7.4 µg/m³2025-12-12: 9.3 µg/m³2025-12-13: 4.5 µg/m³2025-12-14: 4.8 µg/m³2025-12-15: 8.7 µg/m³2025-12-16: 7.8 µg/m³2025-12-17: 6.8 µg/m³2025-12-18: 20.4 µg/m³2025-12-19: 23.3 µg/m³2025-12-20: 14.4 µg/m³2025-12-21: 10.2 µg/m³2025-12-22: 9.6 µg/m³2025-12-23: 9.6 µg/m³2025-12-24: 8.2 µg/m³2025-12-25: 7.7 µg/m³2025-12-26: 5.5 µg/m³2025-12-27: 8.5 µg/m³2025-12-28: 4.6 µg/m³2025-12-29: 12.9 µg/m³2025-12-30: 17.3 µg/m³2025-12-31: 16.9 µg/m³2026-01-01: 12.0 µg/m³2026-01-02: 6.8 µg/m³2026-01-03: 4.2 µg/m³2026-01-04: 2.3 µg/m³2026-01-05: 7.8 µg/m³2026-01-06: 6.7 µg/m³2026-01-07: 9.2 µg/m³2026-01-08: no data2026-01-09: no data2026-01-10: no data2026-01-11: no data2026-01-12: no data2026-01-13: no data2026-01-14: no data2026-01-15: no data2026-01-16: no data2026-01-17: no data2026-01-18: no data2026-01-19: no data2026-01-20: no data2026-01-21: 12.4 µg/m³2026-01-22: 10.8 µg/m³2026-01-23: 9.0 µg/m³2026-01-24: 9.2 µg/m³2026-01-25: no data2026-01-26: no data2026-01-27: no data2026-01-28: no data2026-01-29: no data2026-01-30: no data2026-01-31: 11.1 µg/m³2026-02-01: 13.3 µg/m³2026-02-02: 11.1 µg/m³2026-02-03: 11.0 µg/m³2026-02-04: 16.3 µg/m³2026-02-05: 20.9 µg/m³2026-02-06: 9.8 µg/m³2026-02-07: 13.2 µg/m³2026-02-08: 15.7 µg/m³2026-02-09: 14.4 µg/m³2026-02-10: 9.7 µg/m³2026-02-11: 12.0 µg/m³2026-02-12: 15.0 µg/m³2026-02-13: 20.7 µg/m³2026-02-14: 16.9 µg/m³2026-02-15: 34.6 µg/m³2026-02-16: 44.8 µg/m³2026-02-17: 54.8 µg/m³2026-02-18: 25.9 µg/m³2026-02-19: 15.6 µg/m³2026-02-20: 14.0 µg/m³2026-02-21: 15.5 µg/m³2026-02-22: 13.8 µg/m³2026-02-23: 15.8 µg/m³2026-02-24: 37.5 µg/m³2026-02-25: 19.3 µg/m³2026-02-26: 18.7 µg/m³2026-02-27: 13.7 µg/m³2026-02-28: 24.9 µg/m³2026-03-01: 31.5 µg/m³2026-03-02: 15.9 µg/m³2026-03-03: 10.4 µg/m³2026-03-04: 10.8 µg/m³2026-03-05: 7.9 µg/m³2026-03-06: 21.9 µg/m³2026-03-07: 21.5 µg/m³2026-03-08: 13.7 µg/m³2026-03-09: 13.6 µg/m³2026-03-10: 15.9 µg/m³2026-03-11: 17.0 µg/m³2026-03-12: 11.3 µg/m³2026-03-13: 7.7 µg/m³2026-03-14: 13.9 µg/m³2026-03-15: 16.1 µg/m³2026-03-16: 18.4 µg/m³2026-03-17: 14.5 µg/m³2026-03-18: 7.4 µg/m³2026-03-19: 4.4 µg/m³2026-03-20: 4.2 µg/m³2026-03-21: 3.0 µg/m³2026-03-22: 2.1 µg/m³2026-03-23: 0.8 µg/m³2026-03-24: 1.9 µg/m³2026-03-25: 2.6 µg/m³2026-03-26: 4.2 µg/m³2026-03-27: 9.7 µg/m³2026-03-28: 17.4 µg/m³2026-03-29: 12.8 µg/m³2026-03-30: 17.8 µg/m³2026-03-31: 22.8 µg/m³2026-04-01: 32.8 µg/m³2026-04-02: 41.0 µg/m³2026-04-03: 23.7 µg/m³2026-04-04: 13.9 µg/m³2026-04-05: 8.7 µg/m³2026-04-06: 8.8 µg/m³2026-04-07: 12.1 µg/m³2026-04-08: 16.7 µg/m³2026-04-09: 19.6 µg/m³2026-04-10: 9.9 µg/m³2026-04-11: 13.2 µg/m³2026-04-12: 19.2 µg/m³2026-04-13: 21.2 µg/m³2026-04-14: 27.2 µg/m³2026-04-15: 24.8 µg/m³2026-04-16: 19.3 µg/m³2026-04-17: 20.6 µg/m³2026-04-18: 21.6 µg/m³2026-04-19: 16.6 µg/m³2026-04-20: 12.7 µg/m³2026-04-21: 8.2 µg/m³2026-04-22: 4.8 µg/m³2026-04-23: 5.6 µg/m³2026-04-24: 4.5 µg/m³2026-04-25: 10.7 µg/m³2026-04-26: no data2026-04-27: no data2026-04-28: no data2026-04-29: no data2026-04-30: no data2026-05-01: no data2026-05-02: no data2026-05-03: no data2026-05-04: no data2026-05-05: no data2026-05-06: no data2026-05-07: no data2026-05-08: no data2026-05-09: no data2026-05-10: no data2026-05-11: no data2026-05-12: no data2026-05-13: no data2026-05-14: 10.9 µg/m³2026-05-15: 20.9 µg/m³2026-05-16: 20.0 µg/m³2026-05-17: 14.3 µg/m³2026-05-18: 10.2 µg/m³2026-05-19: 9.8 µg/m³2026-05-20: 9.7 µg/m³2026-05-21: 10.8 µg/m³2026-05-22: 19.0 µg/m³2026-05-23: 18.4 µg/m³2026-05-24: 23.5 µg/m³2026-05-25: 26.2 µg/m³2026-05-26: 26.7 µg/m³2026-05-27: 29.8 µg/m³2026-05-28: 33.8 µg/m³2026-05-29: 31.2 µg/m³2026-05-30: 25.7 µg/m³2026-05-31: 24.4 µg/m³2026-06-01: 23.4 µg/m³2026-06-02: 25.0 µg/m³2026-06-03: 20.9 µg/m³2026-06-04: 12.5 µg/m³2026-06-05: 17.3 µg/m³2026-06-06: 17.9 µg/m³2026-06-07: 14.8 µg/m³2026-06-08: 15.1 µg/m³2026-06-09: 17.1 µg/m³2026-06-10: 26.0 µg/m³2026-06-11: 12.3 µg/m³2026-06-12: 15.7 µg/m³2026-06-13: 6.7 µg/m³2026-06-14: 16.2 µg/m³2026-06-15: 15.5 µg/m³2026-06-16: 18.4 µg/m³2026-06-17: 13.1 µg/m³2026-06-18: 14.0 µg/m³2026-06-19: 11.5 µg/m³2026-06-20: 11.4 µg/m³2026-06-21: 8.2 µg/m³2026-06-22: 12.4 µg/m³2026-06-23: 8.1 µg/m³2026-06-24: 10.1 µg/m³2026-06-25: 9.3 µg/m³2026-06-26: 3.9 µg/m³2026-06-27: 6.2 µg/m³2026-06-28: 5.6 µg/m³2026-06-29: 6.9 µg/m³2026-06-30: 7.9 µg/m³2026-07-01: 7.6 µg/m³2026-07-02: 5.9 µg/m³2026-07-03: 8.0 µg/m³2026-07-04: 11.8 µg/m³2026-07-05: 10.5 µg/m³2026-07-06: 7.7 µg/m³2026-07-07: 9.7 µg/m³2026-07-08: 9.7 µg/m³2026-07-09: 6.7 µg/m³2026-07-10: 12.3 µg/m³2026-07-11: 12.1 µg/m³2026-07-12: 9.6 µg/m³2026-07-13: 8.6 µg/m³2026-07-14: 10.8 µg/m³2026-07-15: 11.2 µg/m³2026-07-16: 1.9 µg/m³2026-07-17: 2.0 µg/m³2026-07-18: 1.9 µg/m³2026-07-19: 1.2 µg/m³2026-07-20: 6.9 µg/m³2026-07-21: 17.2 µg/m³2026-07-22: 9.6 µg/m³2026-07-23: 14.0 µg/m³2026-07-24: 16.3 µg/m³2026-07-25: 11.1 µg/m³2026-07-26: 4.5 µg/m³2026-07-27: 11.2 µg/m³2026-07-28: 8.0 µg/m³2026-07-29: 13.3 µg/m³2026-07-30: 14.1 µg/m³2026-07-31: 8.2 µg/m³2026-08-01: 2.9 µg/m³2026-08-02: 0.6 µg/m³2026-08-03: 3.9 µg/m³2026-08-04: 3.9 µg/m³2026-08-05: 3.0 µg/m³2026-08-06: 11.4 µg/m³2026-08-07: 11.8 µg/m³2026-08-08: 10.6 µg/m³2026-08-09: 8.1 µg/m³2026-08-10: 7.7 µg/m³2026-08-11: 8.2 µg/m³2026-08-12: 10.4 µg/m³2026-08-13: 4.6 µg/m³2026-08-14: 13.0 µg/m³2026-08-15: 6.9 µg/m³2026-08-16: 6.0 µg/m³2026-08-17: 23.1 µg/m³2026-08-18: 16.1 µg/m³2026-08-19: 21.3 µg/m³2026-08-20: 28.1 µg/m³2026-08-21: 13.2 µg/m³2026-08-22: 4.8 µg/m³2026-08-23: 1.5 µg/m³2026-08-24: 8.1 µg/m³2026-08-25: 6.0 µg/m³2026-08-26: 5.1 µg/m³2026-08-27: 4.6 µg/m³2026-08-28: 4.6 µg/m³2026-08-29: 13.8 µg/m³2026-08-30: 9.9 µg/m³2026-08-31: 10.6 µg/m³2026-09-01: 7.6 µg/m³2026-09-02: 10.7 µg/m³2026-09-03: 14.1 µg/m³2026-09-04: 13.8 µg/m³2026-09-05: 20.2 µg/m³2026-09-06: 14.4 µg/m³2026-09-07: 9.5 µg/m³2026-09-08: 19.5 µg/m³2026-09-09: 17.8 µg/m³2026-09-10: 16.5 µg/m³2026-09-11: 6.5 µg/m³2026-09-12: 7.1 µg/m³2026-09-13: 8.5 µg/m³2026-09-14: 5.9 µg/m³2026-09-15: 25.7 µg/m³2026-09-16: 21.9 µg/m³2026-09-17: 12.3 µg/m³2026-09-18: 9.6 µg/m³2026-09-19: 6.1 µg/m³2026-09-20: 4.8 µg/m³2026-09-21: 10.9 µg/m³2026-09-22: 13.1 µg/m³2026-09-23: 14.2 µg/m³2026-09-24: 2.9 µg/m³2026-09-25: 7.2 µg/m³2026-09-26: 8.3 µg/m³2026-09-27: 7.3 µg/m³2026-09-28: 1.7 µg/m³2026-09-29: 1.4 µg/m³2026-09-30: 3.2 µg/m³
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

84 of 268 measured days were over the WHO 24-hour guideline.

Daily world rank

#1#2341DecJanFebMarAprMayJunJulAugSep

Rank on each day's board (1 = most polluted city that day).

2026 against 2025, month by month

15Jan 2026: 8.5 µg/m³JanFeb 2026: 19.6 µg/m³FebMar 2026: 12.0 µg/m³MarApr 2026: 16.7 µg/m³AprMay 2026: 20.3 µg/m³MayJun 2026: 13.4 µg/m³JunJul 2026: 9.1 µg/m³JulAug 2026: 9.2 µg/m³AugSep 2026: 10.8 µg/m³SepOctNovDec 2025: 10.4 µg/m³Dec

Faded bars: 2025. A month shows once it has 10 measured days.

Monitors

StationOperatorType
CEM Martin Luther KingCC BY 4.0kaikai.devLow-cost
Complexe Scolaire Limamoulaye CC BY 4.0kaikai.devLow-cost
Dakar, Ecole Seydina Issa Laye B de Cambérène General Data SharingCC BY 4.0AirGradientLow-cost
Dakar, Mairie Tivaoune DiacksaoCC BY 4.0AirGradientLow-cost
Lycée Blaise DiagneCC BY 4.0kaikai.devLow-cost
Pikine, Ecole Mbaye DioufCC BY 4.0kaikai.devLow-cost
Dakar, Ecole Mbaye DioufCC BY 4.0AirGradientLow-cost

No reference monitor here, so the value is the median of low-cost sensors (at least two reporting each hour). Low-cost sensors can read high in humid air. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Other cities in Senegal

Saint-Louis 44.5Ziguinchor 11.9Thiès 11.3

30-day averages, µg/m³. All of Senegal →

Updated 2026-10-01 04:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.