Kolkata is set to experience a bright and sunny Tuesday on January 27, 2026, with comfortable warmth and clear skies, though air quality concerns linger following a "very poor" day on Monday. The city's weather conditions are favorable for outdoor activities, but precautions are necessary due to persistent pollution, especially during morning hours.
Tuesday's Detailed Weather Forecast
Tuesday's weather in Kolkata promises clear skies and abundant sunshine throughout the day, with no rainfall anticipated. Temperatures are expected to range from a minimum of 16.4°C in the early morning to a maximum of 29°C by the afternoon. The average temperature for the day is projected to be around 22.5°C, which is considered pleasant for late January in the city.
Humidity, Wind, and Visibility
Humidity levels are forecast to average approximately 41%, contributing to a dry and comfortable atmosphere once the sun rises fully. Winds will remain gentle to moderate, with peak speeds reaching about 16.2 km/h. While this breeze may offer some relief in open areas, it is not expected to significantly disperse pollution near busy roads.
Visibility is predicted at 10 km, indicating clear skies, though this does not always correlate with clean air at breathing level. The day will begin with cooler temperatures before 9 AM, transition into a warm and bright midday, and then experience a milder evening as temperatures decrease after sunset at 5:22 PM. With a 0% chance of rain, no weather disruptions are expected, making it suitable for various outdoor plans if air quality is managed.
Air Quality Concerns and Health Impacts
On Monday, January 26, Kolkata recorded an AQI (India) of 290, falling into the "very poor" category. The corresponding US AQI equivalent was 223, also indicating unhealthy air conditions. Primary pollutants included PM2.5 at 143 and PM10 at 174, alongside CO at 400.
Health Effects of Poor Air Quality
This level of air quality typically causes irritation to the throat and eyes, and can trigger symptoms such as coughing, wheezing, headaches, or fatigue. These effects are particularly pronounced for vulnerable groups, including children, older adults, and individuals with pre-existing conditions like asthma or heart issues. Even healthy adults may notice discomfort during prolonged outdoor exposure or strenuous activities.
Precautions and Recommendations for Tuesday
While Tuesday's weather looks great, the air may still demand caution. Sunshine and a light breeze can enhance comfort, but dry, calm-to-moderate conditions without rain often lead to slow pollution dispersion, especially in the morning when emissions and stagnant atmospheric layers trap particulate matter near ground level.
Practical Steps for Residents
- For early morning outings, wearing a mask is advised, particularly in traffic-heavy areas.
- If heading out in the afternoon, consider sunglasses and water, as the sun's intensity will be noticeable between 1 PM and 3 PM.
- During commuting hours, use a well-fitting mask near road crossings and flyovers, and opt for less congested routes if feasible.
- For exercise, late morning to early afternoon is generally more comfortable than early morning during pollution periods; keep intensity moderate if irritation is felt.
- At home, shut windows during peak traffic hours, use an air purifier if available, and practice measures like wet mopping and avoiding incense to reduce indoor pollutant exposure.
Week Ahead Outlook
The week ahead in Kolkata is expected to maintain clear skies and a warming trend, with no rain in the forecast. Maximum temperatures are projected to rise from 29°C on Tuesday to approximately 30.6°C on January 28, and then to 31.4°C on January 29. Temperatures will hover near 30–31°C through the weekend, potentially peaking at 32.3°C on February 2. Nighttime temperatures will also gradually warm, increasing from 16.4°C on Tuesday night to around 18–18.4°C later in the week.
Best Days for Outdoor Plans
January 27 and 28 are identified as the most comfortable days for outdoor activities based on temperature, before the heat increases further. However, individuals sensitive to pollution should remain cautious, as this dry, sunny stretch can sometimes coincide with stubborn particulate levels even when skies appear clear.
A note for skywatchers indicates that the moon will reach its Full Moon phase on February 1, with moonrise shifting later each day. For evening strolls, the weather is nice, provided the air cooperates.
