Kolkata's Weather: Sunshine with a Pollution Warning
Kolkata residents will wake up to a bright and fully sunny Thursday on January 15, 2026. The day promises comfortable winter warmth as it progresses. Morning temperatures will start cool near 13.4°C, climbing to a pleasant high of approximately 25.9°C by afternoon. No rain is expected, making it ideal for outdoor plans.
Air Quality Remains a Critical Issue
Despite the clear skies, a significant concern shadows the day. Yesterday's air quality fell into the Severe category, and this condition may linger into Thursday morning. The air quality index (AQI) for India registered at 347 on Wednesday, placing it in Category 5. On the US scale, it read 265, indicating unhealthy conditions for most people.
Primary pollutants included PM2.5 at 182 and PM10 at 231 levels. Carbon monoxide also measured high at 304. These factors can trigger throat irritation, coughing, and breathing difficulties, especially for vulnerable groups like children, older adults, and those with asthma or heart conditions.
Today's Detailed Forecast and Recommendations
Thursday's weather is straightforward with sunny conditions from morning to evening. Visibility should reach around 10 kilometers, and humidity will average a low 28%, preventing stickiness. Winds will be light to moderate, peaking near 16.2 kilometers per hour, creating gentle breezes along open areas and the river.
Hourly shifts will be minimal due to absent cloud cover and rainfall. Residents will experience a classic winter gradient: a brisk morning best for walks if air pollution sensitivity is low, a comfortable late morning, and a warm, sunlit afternoon that might feel hot in direct sun. Post-sunset around 5:13 PM, temperatures will drop steadily, so a light layer is advisable for evening commutes.
For air quality, sunshine and modest winds may improve mixing later, offering afternoon relief. However, pollution often traps near the ground at dawn. The best air window is typically late morning to mid-afternoon. Recommendations include keeping early outdoor exercise light, choosing less congested routes like parks over main roads, and wearing masks for two-wheelers, pedestrians in busy areas, or those prone to irritation.
Weather-wise, carry sunglasses and water. Around lunchtime, a cap or shade breaks can enhance comfort. By evening, a light jacket or shawl helps in breezier spots.
Broader Weekly Outlook
The larger weather pattern shows consistency. Kolkata will remain sunny every day through January 21 with no rain. Temperatures will rise progressively:
- Highs: 25.9°C today, 26.5°C on the 16th, 27.1°C on the 17th, 28.8°C on the 18th, 30.5°C on the 19th, and 31.8°C on the 20th and 21st.
- Lows: From 13.4°C today to 19.1°C by the 21st, gradually losing the winter bite.
For planners, Saturday the 17th looks like a sweet spot—warm but not yet hot. Those sensitive to heat should exercise caution on January 20-21, with midday prudence and better hydration advised. Skywatchers might note the New Moon on January 18, potentially offering darker, clearer night skies if haze eases.
Data referenced is from AQI.in.
