Chennai Braces for Damp Sunday with Moderate Air Quality
Residents of Chennai should prepare for a wet and warm Sunday on January 25, 2026, as the city is forecast to experience moderate rainfall throughout the day. Temperatures are expected to hover in the mid-20s, creating a humid environment that may feel heavier than the actual thermometer readings suggest.
Detailed Weather Conditions for Sunday
The high temperature is projected to reach 26.8°C, with a low of 23.5°C, resulting in an average near 24.8°C. Humidity levels will remain elevated at approximately 77 percent, which can amplify the discomfort, especially when combined with rainy conditions. Winds may gust up to 23 kilometers per hour at times, offering brief relief between showers but also potentially pushing rain bands across different neighborhoods quickly.
Rain is a significant feature of today's forecast, with an 86 percent chance of precipitation and about 5.31 millimeters expected. This points to intermittent spells rather than continuous downpours, but it could still lead to slick roads and slower traffic. The typical pattern for such days includes muggy mornings, showers building from late morning into the afternoon, and possible bursts around early evening, coinciding with commuter travel times.
Air Quality and Health Concerns
Looking back at Saturday, January 24, Chennai recorded an AQI-IN of 99, classified as moderate under Indian standards. This level may cause throat irritation or breathlessness for sensitive groups, such as those with asthma, COPD, or allergies. Particulate pollution was a notable factor, with PM2.5 at 56 and PM10 at 69, both capable of aggravating respiratory issues near busy junctions and construction areas. Carbon monoxide levels stood at 323, adding to the pollution load.
Today's rain and breezier periods may help wash out dust and fine particles, potentially improving short-term air quality. However, high humidity can trap pollutants near the ground between showers, so individuals might still notice heavy air during calm spells, particularly in dense traffic zones.
Essential Preparations for Residents
Planning for the day involves carrying essential items to navigate the conditions safely and comfortably. Key recommendations include:
- An umbrella or rain jacket is considered non-negotiable for protection against sudden downpours.
- Waterproof footwear is helpful, especially for those using public transport or walking short distances.
- Considering a mask during peak traffic hours is advisable due to yesterday's moderate air quality, particularly for commuters on two-wheelers or waiting at bus stops.
- Scheduling errands for mid-morning, before the heaviest clouds build up, and keeping buffer time for slower roads.
- For indoor comfort, sensitive individuals may benefit from keeping windows closed during traffic peaks and ventilating after showers when the air feels fresher.
Sunrise is at 6:36 AM and sunset at 6:07 PM, so early morning activities are encouraged before showers become more likely and humidity peaks.
Weekly Weather Outlook for Chennai
The week ahead indicates that Chennai will remain unsettled for one more day. Monday, January 26, again calls for moderate rain, with temperatures rising slightly to a high of 28.6°C and a low of 22.6°C. There is an 88 percent chance of rain, with about 5.07 millimeters of precipitation expected.
From Tuesday, January 27, through Saturday, January 31, the forecast shifts to a much more outdoor-friendly pattern. Sunny skies are predicted every day during this period, with high temperatures around 28.2–28.6°C. Nights will gradually become cooler, easing down to about 20.4–20.8°C by the weekend. This window appears ideal for planning activities such as beach walks, family outings, or long outdoor tasks, though hydration and sunscreen are recommended for the afternoon sun.
After a couple of wet days, the run of sunshine should help roads dry out and reduce damp discomfort, even as Chennai remains warm. This data is based on reliable sources, providing residents with accurate insights to plan their week effectively.
