Delhi's January Air Quality: Second Best in 5 Years Despite Slight Deterioration

• Delhi recorded an average AQI of 307 in January 2026, making it the second-best January in the last five years.
• This year's average AQI is slightly worse than January 2025's 306, which was the best January since 2022.
• The presence of two "severe" air quality days in January 2026, compared to none in January 2025, contributed to the higher average AQI.
• January 2026 saw two "moderate", 12 "poor", 14 "very poor", and two "severe" air quality days.
• The air quality early warning system predicts "very poor" air quality for January 31.

Why It Matters: Delhi's January 2026 air quality is the second-best in five years, despite a slight increase in AQI.