Kolkata, November 20, 2025, begins with a bright and sunny morning, featuring clear skies and a comfortable temperature range of 18.6°C to 29.3°C. This pleasant weather is expected to continue throughout the day and into the coming week, offering ideal conditions for outdoor activities. However, yesterday's air quality index (AQI) registered 166, placing it in the ‘poor’ category due to primary pollutants like PM2.5 and PM10, alongside elevated carbon monoxide levels, which may still affect sensitive individuals.
The city is set for a warm and dry day ahead. The mercury is projected to reach a peak of 29.3°C. Evening temperatures are expected to cool down to a minimum of 18.6°C. This temperature range is considered ideal for an early dinner outdoors.
Humidity levels remain moderate at 45%. This ensures the day does not feel too sticky. A gentle breeze, reaching up to 13 km/h, will help keep the air fresh throughout the afternoon hours. There is no forecast for rain, making umbrellas unnecessary.
Sunshine will dominate the sky as the day progresses. This suggests the use of sunglasses for those stepping out after 10 AM. The evening is anticipated to be calm, with a slight temperature dip enhancing comfort for a stroll.
Yesterday’s air quality index was recorded at 166. This categorised the air quality as ‘poor’. The primary pollutants identified were PM2.5 at 79 µg/m³ and PM10 at 99 µg/m³. These levels can cause respiratory discomfort for individuals with pre-existing conditions.
Carbon monoxide levels were also elevated, reaching 460 µg/m³. These elevated levels are likely attributed to vehicular emissions and industrial activity. While today’s weather conditions are expected to maintain stable pollution levels, the combination of moderate humidity and light winds might not fully disperse existing pollutants.
Sensitive groups, including children and the elderly, are advised to exercise caution. They should limit prolonged outdoor exposure to mitigate potential health impacts. For those planning a morning walk, carrying a mask is recommended if venturing into traffic-heavy zones.
Given the sunny weather and moderate air quality, specific recommendations are provided for the day. In the morning, starting the day early with a walk or light exercise is suggested. The cool breeze and fresh air are considered ideal for such outdoor activities.
During the afternoon, individuals heading out should wear UV-protected sunglasses. Staying hydrated is also advised, as the sun can feel intense during peak hours. The calm evening weather is suitable for a family outing or a walk in the park. However, individuals prone to allergies are encouraged to keep a mask handy during evening activities.
The weather outlook for the next seven days in Kolkata indicates a continuation of sunny and dry conditions. On November 21, the forecast is sunny with temperatures ranging from 18.6°C to 29.3°C. November 22 is also expected to be sunny, with temperatures between 18.8°C and 29.6°C.
For November 23, sunny weather is predicted, with a range of 18.6°C to 29.4°C. November 24 will see sunny skies and temperatures from 18°C to 29.2°C. On November 25, the forecast is sunny, with temperatures between 17.8°C and 28.6°C. November 26 is expected to be sunny, with temperatures ranging from 18°C to 29.1°C.
The entire week is projected to remain warm, without significant changes in temperature or overall weather conditions. Any day during the week would be suitable for outdoor activities. However, early mornings and late evenings are expected to offer the most comfortable weather for such plans.
Data referenced in this article is taken from AQI.in.