Mumbai weather update: Rainy and humid conditions expected with moderate air quality

According to AQI.in, these weather and pollution measurements indicate typical monsoon conditions for Mumbai during this period.

Mumbai is experiencing a wet and humid day on September 18, 2025, with forecasted temperatures between 26.2°C and 29.2°C, accompanied by patchy rain throughout the day. The city's Air Quality Index (AQI) measured 55 yesterday, falling in the moderate category, while a 91% chance of rain and 77% humidity levels are expected today.

The day's weather shows predominantly cloudy conditions with an average temperature of 27.7°C. Wind speeds will reach up to 16.9 km/h, with rain showers likely intensifying by late afternoon.

Yesterday's Pollution Levels

Yesterday's pollution levels indicated moderate air quality with an AQI of 55. The main pollutants were PM2.5 and PM10, measuring 23 and 54 µg/m³ respectively, while CO levels reached 406 µg/m³.

Daily Planning and Commute

The morning starts relatively calm, but residents should prepare for increased rainfall during the afternoon commute.

Evening conditions are expected to be cool and damp.For daily planning, morning activities can proceed with light protection against drizzles. Afternoon travelers should carry rain protection, while evening activities are better suited indoors. Those venturing into crowded areas should consider wearing masks.

Upcoming Week's Forecast

The weather outlook for the upcoming week shows consistent rain patterns. September 19 will see heavy rainfall with temperatures reaching 28.8°C

, while September 20 expects patchy rain with a high of 28.9°C.Light rain will continue through September 21-22, maintaining highs between 28.8°C and 29°C. The following days, September 23-24, will experience scattered showers with temperatures ranging from 26°C to 29°C.

Humidity and Environmental Impact

Humidity levels remain high at 77%, creating muggy conditions throughout the day. The gentle winds are unlikely to provide significant relief from the humid weather.The moderate AQI reading represents a slight improvement from last week's measurements. However, the ongoing rainfall may cause waterlogging in certain areas, affecting daily commutes.PM2.5 and PM10 concentrations, along with elevated CO levels, may cause mild discomfort for individuals with respiratory sensitivities, particularly in areas with heavy traffic.The rainfall pattern could help reduce air pollutants, though some areas, especially those with low elevation, might still experience lingering pollution effects during peak traffic hours.