Air quality in April: cleanest & most polluted destinations

Where the air is cleanest — and worst — to travel in April, 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 April weather and air-quality breakdown.

Worst air quality in April

  1. 1Hotan 🇨🇳 ChinaHazardous355
  2. 2Ürümqi 🇨🇳 ChinaVery unhealthy207
  3. 3Laayoune Western SaharaUnhealthy187
  4. 4Nong Khiaw 🇱🇦 LaosUnhealthy176
  5. 5Ennedi Plateau 🇹🇩 ChadUnhealthy175
  6. 6Luang Namtha 🇱🇦 LaosUnhealthy167
  7. 7Jeddah 🇸🇦 Saudi ArabiaUnhealthy162
  8. 8Vang Vieng 🇱🇦 LaosUnhealthy159
  9. 9Riyadh 🇸🇦 Saudi ArabiaUnhealthy for sensitive groups150
  10. 10Mecca 🇸🇦 Saudi ArabiaUnhealthy for sensitive groups149
  11. 11Jakarta 🇮🇩 IndonesiaUnhealthy for sensitive groups149
  12. 12Kashgar 🇨🇳 ChinaUnhealthy for sensitive groups144
  13. 13Nouakchott 🇲🇷 MauritaniaUnhealthy for sensitive groups143
  14. 14Dakhla Western SaharaUnhealthy for sensitive groups139
  15. 15Kolkata 🇮🇳 IndiaUnhealthy for sensitive groups138

Cleanest air in April

  1. 1Honiara 🇸🇧 Solomon IslandsGood11
  2. 2Antsiranana 🇲🇬 MadagascarGood14
  3. 3Nadi 🇫🇯 FijiGood14
  4. 4Samaipata 🇧🇴 BoliviaGood15
  5. 5Tilcara 🇦🇷 ArgentinaGood15
  6. 6Nelson 🇳🇿 New ZealandGood16
  7. 7Praslin 🇸🇨 SeychellesGood16
  8. 8Tongariro 🇳🇿 New ZealandGood16
  9. 9Christchurch 🇳🇿 New ZealandGood17
  10. 10Farellones 🇨🇱 ChileGood17
  11. 11Kaikōura 🇳🇿 New ZealandGood17
  12. 12Lake Tekapo 🇳🇿 New ZealandGood17
  13. 13Puerto Natales 🇨🇱 ChileGood17
  14. 14Te Anau 🇳🇿 New ZealandGood17
  15. 15Ushuaia 🇦🇷 ArgentinaGood17