SmogRank / Benin

Air quality in Cotonou estimated

Littoral, Benin. No ground monitor we can use is in this city, so these numbers are model estimates, not measurements.

≈ 9 µg/m³
Moderate

Estimated PM2.5, 7-day average to 2026-09-30, about 0.6× the WHO 24-hour guideline. 30-day average ≈ 8 µg/m³.

Model estimate from the Copernicus Atmosphere Monitoring Service (CAMS). No measured city is within 300 km, too few to adjust it, so this is the raw model value, which can be off by half or double. Not ranked on SmogRank's boards.

Last 30 days, estimated

152026-09-01: ≈ 8 µg/m³ (estimate)09-012026-09-02: ≈ 7 µg/m³ (estimate)2026-09-03: ≈ 10 µg/m³ (estimate)2026-09-04: ≈ 8 µg/m³ (estimate)2026-09-05: ≈ 8 µg/m³ (estimate)2026-09-06: ≈ 8 µg/m³ (estimate)2026-09-07: ≈ 7 µg/m³ (estimate)2026-09-08: ≈ 9 µg/m³ (estimate)09-082026-09-09: ≈ 6 µg/m³ (estimate)2026-09-10: ≈ 5 µg/m³ (estimate)2026-09-11: ≈ 5 µg/m³ (estimate)2026-09-12: ≈ 7 µg/m³ (estimate)2026-09-13: ≈ 7 µg/m³ (estimate)2026-09-14: ≈ 7 µg/m³ (estimate)2026-09-15: ≈ 6 µg/m³ (estimate)09-152026-09-16: ≈ 7 µg/m³ (estimate)2026-09-17: ≈ 7 µg/m³ (estimate)2026-09-18: ≈ 7 µg/m³ (estimate)2026-09-19: ≈ 10 µg/m³ (estimate)2026-09-20: ≈ 10 µg/m³ (estimate)2026-09-21: ≈ 9 µg/m³ (estimate)2026-09-22: ≈ 7 µg/m³ (estimate)09-222026-09-23: ≈ 6 µg/m³ (estimate)2026-09-24: ≈ 9 µg/m³ (estimate)2026-09-25: ≈ 9 µg/m³ (estimate)2026-09-26: ≈ 9 µg/m³ (estimate)2026-09-27: ≈ 8 µg/m³ (estimate)2026-09-28: ≈ 7 µg/m³ (estimate)2026-09-29: ≈ 11 µg/m³ (estimate)09-292026-09-30: ≈ 12 µg/m³ (estimate)

Daily means, UTC days. Dashed line: WHO 24-hour guideline (15 µg/m³).

Measured cities nearby

CityDistance7-day average
Lagos108 km24.1 µg/m³
Ibadan199 km26.3 µg/m³
Tema280 km20.4 µg/m³
Ashaiman281 km22.3 µg/m³
Adenta294 km16.5 µg/m³
Medina Estates296 km16.0 µg/m³

Estimates contain modified Copernicus Atmosphere Monitoring Service information 2026. How estimates are made.