Kolkata experienced a sunny and mild day on 17 December 2025, offering a brief respite for residents amid ongoing air quality concerns. Morning temperatures began at 15.9°C, gradually rising to 27.1°C by midday, creating favourable conditions for outdoor activity. However, the city’s Air Quality Index (AQI) remained a critical concern, with yesterday’s reading in the ‘severe’ category at 327, signalling health risks for vulnerable groups.
Despite the pleasant weather, experts caution that high particulate matter levels persist. PM2.5 was recorded at 165 µg/m³, PM10 at 204 µg/m³, and carbon monoxide at 489 µg/m³, underscoring the ongoing pollution challenge in this dense urban centre. “Even on sunny, breezy days, exposure to fine particulates can impact respiratory health, particularly for children, the elderly, and those with pre-existing conditions,” an environmental analyst noted. The day’s mild winds, peaking at 14.8 km/h, and low humidity of 41% contributed to relatively comfortable outdoor conditions, enabling residents to engage in activities such as morning walks or evening strolls. Visibility was reported as excellent at 10 km, and no rainfall is expected in the immediate forecast. Temperatures are predicted to remain cool in the evening, making outdoor relaxation feasible for the public, provided precautionary measures are observed.
Looking ahead, the week is expected to feature predominantly sunny days, with temperatures gradually increasing. By 23 December, the maximum temperature may reach 29.6°C, while night temperatures remain between 16°C and 18°C. While this weather trend supports outdoor engagement, sustained pollution levels underline the need for comprehensive urban air quality management strategies. Authorities continue to emphasise the importance of personal protection on high-traffic routes. Masks and reduced exposure are advised during peak commuting hours, alongside lifestyle adjustments for sensitive groups.
Urban planners stress that long-term solutions must balance mobility, industrial activity, and green infrastructure to achieve healthier air quality and sustainable urban living. Kolkata’s current weather and pollution scenario illustrates the broader challenge Indian cities face in harmonising climate comfort and environmental health. While residents may enjoy clear skies temporarily, systemic measures including stricter emission controls, urban greening, and public awareness campaigns remain critical for long-term improvements.
Kolkata Weather Sunny Mild Temperatures Severe Air Quality Persists Today
