Residents of Chennai should brace for a significantly wet Thursday, December 5, 2025, as the city is set to be dominated by moderate rainfall accompanied by warm and humid conditions. The forecast, sourced from AQI.in, indicates a very high probability of precipitation, making umbrellas and rain gear essential for venturing outdoors.
Detailed Daily Forecast for Chennai
The day will begin with sunrise at 6:18 AM. While the morning might offer a brief dry spell, rain showers are expected to develop and intensify as the day progresses. The mercury will oscillate between a minimum of 23.6°C and a maximum of 28°C.
High humidity levels, hovering around 81%, will make the air feel heavy and sticky. Winds are projected to pick up speed, reaching up to 28.8 km/h, which will add to the day's overall feel. The most striking figure is the 96% chance of rain, signaling near-certain wet conditions that could lead to waterlogging in low-lying areas and slick roads.
By evening, temperatures will dip slightly, settling around a cooler 24°C, creating a perfect setting for a cozy night indoors.
Air Quality and Health Advisory
On the air quality front, Chennai continues to enjoy a spell of clean air. Yesterday, December 4, the city recorded a good Air Quality Index (AQI) of 22 by Indian standards. Key pollutants like PM2.5 and PM10 were at safe concentrations of 13 µg/m³ and 19 µg/m³ respectively.
The ongoing rainfall is expected to act as a natural cleanser, helping to settle dust and particulate matter, thereby maintaining these favourable air conditions. However, experts advise that individuals with respiratory sensitivities should remain cautious, especially in areas with heavy traffic or poor drainage during intense downpours. Carrying a mask in such zones is a recommended precaution.
Your Day Planner and Weekly Outlook
Planning your activities around the weather is crucial today. The morning hours present the best window for a quick walk or jog, but always with an umbrella at hand. The afternoon is best avoided for outdoor plans due to expected showers. The evening, with its cooler breeze, is ideal for relaxing indoors with a hot beverage.
Looking ahead at the week, the weather pattern shows a gradual shift:
- December 6: Patchy rain continues. Temperature range: 23.8°C to 27.7°C.
- December 7: More patchy rain with a slight drop in temperatures.
- December 8 & 9: Rain tapers off, but skies stay cloudy. Temps: 22.7°C to 27.9°C.
- December 10 & 11: Sunny weather makes a comeback with stable temperatures between 21.4°C and 27.3°C.
For those looking to schedule outdoor events, December 10 and 11 appear to be the most promising days with clear skies and pleasant temperatures. The current rainy spell, while disruptive to immediate plans, is ensuring the city's air remains refreshingly clean, offering a silver lining for outdoor enjoyment once the clouds clear.
