SmogRank / World / South Africa / Western Cape / April 2026

Most polluted cities in Western Cape, South Africa, April 2026

No city in Western Cape, South Africa had measurements on 70% of the days, so April 2026 has no board for Western Cape, South Africa.

Western Cape has 9 cities ranked over the last 30 days, but none here: most of its monitors have no readings for April 2026 in OpenAQ's archive, where ours come from, or too few to rank. Cities missing from this board weren't clean, just not measured.

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, April 2026 · All cities in South Africa, April 2026 · Western Cape now