Air quality in May: cleanest & most polluted destinations
Where the air is cleanest — and worst — to travel in May, ranked by the monthly-mean US Air Quality Index (AQI) across 600+ destinations. Lower is better: 0–50 is good, 100+ starts to bite, 150+ is unhealthy. Tap any place for its full May weather and air-quality breakdown.
Worst air quality in May
- 1Hotan, ChinaVery unhealthy225AQI
- 2Nouakchott, MauritaniaUnhealthy177AQI
- 3Riyadh, Saudi ArabiaUnhealthy171AQI
- 4Jakarta, IndonesiaUnhealthy169AQI
- 5Ürümqi, ChinaUnhealthy157AQI
- 6Agra, IndiaUnhealthy154AQI
- 7Kuwait City, KuwaitUnhealthy153AQI
- 8Delhi, IndiaUnhealthy for sensitive groups146AQI
- 9Jeddah, Saudi ArabiaUnhealthy for sensitive groups138AQI
- 10Chengdu, ChinaUnhealthy for sensitive groups138AQI
- 11Mecca, Saudi ArabiaUnhealthy for sensitive groups134AQI
- 12Varanasi, IndiaUnhealthy for sensitive groups133AQI
- 13Beijing, ChinaUnhealthy for sensitive groups127AQI
- 14Chongqing, ChinaUnhealthy for sensitive groups126AQI
- 15Santiago, ChileUnhealthy for sensitive groups125AQI
Cleanest air in May
- 1Honiara, Solomon IslandsGood14AQI
- 2Nadi, FijiGood16AQI
- 3Christchurch, New ZealandGood18AQI
- 4Dunedin, New ZealandGood18AQI
- 5Falls Creek, AustraliaGood19AQI
- 6Mount Buller, AustraliaGood19AQI
- 7Puerto Natales, ChileGood19AQI
- 8Farellones, ChileGood20AQI
- 9Uluru, AustraliaGood20AQI
- 10Ushuaia, ArgentinaGood20AQI
- 11Wānaka, New ZealandGood20AQI
- 12Baños, EcuadorGood21AQI
- 13El Calafate, ArgentinaGood21AQI
- 14Perisher Valley, AustraliaGood21AQI
- 15Queenstown, New ZealandGood21AQI