Mumbai residents were greeted by bright sunshine and clear blue skies on Tuesday, December 16, 2025, offering a pleasant respite from recent air quality concerns. The day's weather was marked by comfortable warmth, providing ideal conditions for outdoor activities.
Detailed Weather Snapshot for December 16
The city recorded a maximum temperature of 30.3 degrees Celsius, while the minimum settled at a mild 22 degrees Celsius. The average temperature for the day hovered around 25.7°C, with moderate humidity levels of 39%. Gentle winds blew at a speed of approximately 15.1 km/h, aiding in atmospheric circulation. Meteorologists confirmed a zero percent chance of rain, ensuring a completely dry day.
The morning hours were perfect for a brisk walk or outdoor yoga. While the afternoon felt warm, it remained comfortable. As evening set in, a cool breeze was anticipated, making it an excellent time for a leisurely stroll along Marine Drive or a quiet balcony dinner.
Contrast with Previous Day's Air Quality
This pleasant weather stood in stark contrast to the air quality recorded just a day earlier. On Monday, December 15, Mumbai's air was categorized as 'Poor', with an AQI-IN index reading of 146.
The primary pollutants responsible for this dip were elevated levels of particulate matter. The concentration of PM2.5 was recorded at 73 µg/m³, while PM10 levels reached 92 µg/m³. Carbon monoxide levels also saw a slight increase, measured at 293 µg/m³. This combination could have caused significant discomfort, especially for individuals with respiratory conditions, in traffic-heavy zones.
Health Precautions and Activity Guide
While Tuesday's sunny and windy conditions were expected to help disperse some pollutants, experts continued to advise caution. Carrying a mask remains a smart precaution, particularly when venturing into high-traffic downtown areas or industrial zones.
For those planning outdoor exercise, the early morning or late evening are the best times, when the air is cooler and fresher. Commuters in areas like Andheri or Dadar should keep masks handy to minimize exposure. Given the strong sun, applying sunscreen and wearing sunglasses are essential for daytime outdoor plans.
Weekly Weather Outlook for Mumbai
The forecast for the rest of the week predicts consistently sunny and dry weather. Temperatures are set to climb gradually. Wednesday, December 17, may see a high of 30.7°C, with Thursday reaching around 31°C. Humidity is expected to stay in the low 40s, with nighttime lows around 23°C.
The weekend from December 20 to 22 might bring a slight cooldown, with daytime temperatures ranging between 29.2°C and 29.6°C. Overall, the week ahead looks perfect for picnics, beach visits, and other outdoor engagements.
Pollution Trend Offers Hope
Despite Monday's poor reading, data indicates a positive trend. The AQI of 146 on December 15 showed an improvement from Sunday's reading of 175. Over the past week, the city has witnessed a gradual decrease in pollution levels, attributed to steady winds and clear skies. If this pattern holds, Mumbai could experience cleaner air during the upcoming holiday season.
Source: Weather and air quality data referenced in this report is sourced from AQI.in.
