The data for this weather forecast has been sourced from AQI.in, providing residents with comprehensive information to plan their daily activities and weekly schedules accordingly.Chennai’s weather forecast for September 15, 2025, indicates a mix of warmth and occasional rain with temperatures ranging between 27.1°C and 34.3°C. The city’s air quality remains moderate with an AQI of 60 from yesterday, while scattered showers are expected throughout the day with an 89% chance of precipitation measuring 1.65 mm.The day will see peak temperatures of 34.3°C during afternoon hours before cooling to 27.1°C at night. Humidity levels will maintain at 66% throughout the day, with wind speeds reaching up to 19.8 km/h.Air quality measurements from yesterday showed PM2.5 levels at 22 µg/m³ and PM10 at 60 µg/m³. Carbon monoxide levels were recorded at 507 µg/m³, keeping the overall air quality in the moderate range.
Today’s Outlook and Recommendations
The weather conditions suggest carrying rain protection gear, particularly during afternoon hours. The combination of rain and humidity might create muggy conditions, while early morning remains optimal for outdoor activities.
Week Ahead Forecast
Chennai’s week ahead forecasts continued rainfall and humid conditions. Tuesday will reach 33.7°C with possible light rain, while Wednesday and Thursday expect moderate rainfall with highs of 34.3°C and 31.8°C respectively.Heavier rainfall is predicted for Friday and Saturday, with precipitation reaching 10.81 mm on Friday. Sunday will experience lighter rain conditions with temperatures reaching 34°C.
Air Quality Insights and General Advice
September 14’s air quality reading of 60 AQI represents one of the month’s better measurements. The anticipated rainfall throughout the week could further improve air quality conditions.The current weather pattern suggests wearing lightweight rain protection and considering masks in high-traffic areas for those sensitive to air quality. The scattered showers might help reduce dust particles and improve overall air conditions.The evening should bring some relief with breezier conditions, offering a more comfortable end to the day. The consistent rainfall pattern through the week may require additional planning for outdoor activities, particularly during Wednesday and Thursday’s predicted heavier rainfall.The data for this weather report comes from AQI.in, providing comprehensive air quality and weather measurements for Chennai.