Kolkata Weather Update September: Kolkata woke up to a refreshing change in its atmospheric conditions on September 17, 2025, with moderate rainfall and improved air quality providing relief to residents. After days of fluctuating temperatures and humidity, the showers helped cleanse the air, reducing dust and pollutants and offering a cleaner environment for the city.
According to the India Meteorological Department (IMD), rainfall activity is expected to continue intermittently across different parts of the city, accompanied by cloudy skies and a notable drop in pollution levels.
Kolkata Weather Update September: Current Weather Conditions
- Rainfall: Moderate rainfall was recorded across central and southern parts of Kolkata. The showers, though not torrential, were sufficient to cool the atmosphere and clear pollutants from the air.
- Temperature: Day temperatures are expected to remain in the low 30s (°C), with nighttime temperatures around the mid-20s. Cloud cover has kept the intensity of sunlight low.
- Humidity: High humidity remains, with moisture levels above 80%, creating a sticky, damp feeling for commuters and residents.
- Air Quality: The most encouraging sign has been the improvement in air quality. The Air Quality Index (AQI) has shifted to the “Good” to “Satisfactory” range at several monitoring stations.
For real-time AQI updates in Kolkata, residents can check the Central Pollution Control Board (CPCB) AQI portal.
Why Air Quality Improved
Rain plays a critical role in cleansing the atmosphere. When showers occur:
- Particulate Matter Washout: Raindrops capture and bring down pollutants such as PM2.5 and PM10 from the air.
- Lower Temperatures: Reduced heat prevents the formation of secondary pollutants like ground-level ozone.
- Settled Dust: Roads and construction areas see less suspended dust in rainy conditions.
These factors combined explain the healthier air quality recorded today.
Impact on Daily Life
While the rainfall improved air quality, the weather has had both positive and challenging effects on daily life:
- Commuting: Wet roads slowed down morning traffic, with puddles forming in poorly drained areas.
- Health: Cleaner air provided relief to asthma and bronchitis patients, but the persistent humidity remains a trigger for those with fungal or skin allergies.
- Outdoor Activities: Parks and open spaces saw a higher number of joggers and walkers today, taking advantage of the cleaner air.
- Markets: Vegetable and fish markets reported brisk morning sales, as shoppers took advantage of the cooler weather before heavier showers returned.
Forecast for Coming Days
The IMD has predicted similar weather conditions over the next few days:
- Intermittent Showers: Scattered moderate rainfall expected in the afternoons and evenings.
- Temperature Range: Maximums likely between 31–33°C and minimums around 25°C.
- Air Quality: Expected to remain in the “Satisfactory” range as long as rainfall continues.
For official weather updates, citizens can follow the India Meteorological Department website.
Health and Safety Advisory
Authorities and health experts suggest the following precautions during this spell of weather:
- For Commuters: Carry umbrellas or raincoats to avoid prolonged exposure to dampness. Wear non-slip footwear.
- For Families: Elderly people, children, and pregnant women should avoid exposure to high humidity outdoors for long periods.
- For Households: Maintain ventilation indoors to prevent mold growth, which thrives in humid conditions.
- For Patients: Those with respiratory conditions should continue to monitor AQI updates and keep medications handy.
Civic & Infrastructure Challenges
Kolkata’s infrastructure faces recurring challenges during periods of rain:
- Waterlogging: Some areas with poor drainage continue to witness stagnant water.
- Road Conditions: Potholes worsen, leading to inconvenience for motorists.
- Mosquito Breeding: Stagnant water raises concerns over vector-borne diseases like dengue and malaria.
The Kolkata Municipal Corporation (KMC) has already issued guidelines to tackle mosquito breeding and urged residents to keep their premises clean. More details can be found on the KMC official site.
Environmental & Long-Term Outlook
The improvement in air quality underscores how natural factors like rain temporarily offset pollution levels. However, experts warn that rain is not a long-term solution. Once showers stop, emissions from vehicles, industries, and construction can push AQI levels back up.
Long-term solutions include:
- Expanding urban green cover
- Reducing vehicular emissions through stricter policies
- Promoting eco-friendly construction practices
- Regular monitoring by state pollution control boards
Conclusion
The Kolkata weather update for September 17, 2025 highlights a much-needed respite for the city, with moderate rainfall improving both comfort levels and air quality. While humidity remains high, the relief from pollution is a welcome development for lakhs of residents.
Authorities continue to monitor conditions closely, and residents are advised to stay informed through official platforms like IMD and CPCB.
The weather may pose challenges for daily commuters and infrastructure, but it also brings a breath of fresh, cleaner air—a reminder of how closely natural cycles and human life remain intertwined in the city of Kolkata.
Also read: Home | Channel 6 Network – Latest News, Breaking Updates: Politics, Business, Tech & More
