Kolkata Weather Update: The city of Kolkata is preparing for another round of moderate rain accompanied by high humidity, according to forecasts issued by meteorological authorities. Encouragingly, the air quality is expected to remain “good” to “moderate”, offering residents a refreshing respite after the intense downpours and waterlogging challenges that battered the city earlier this month.
With Durga Puja preparations in full swing, this weather forecast comes at a crucial juncture. Organisers and civic authorities are racing against time to ensure pandals are structurally safe, while residents welcome the prospect of cleaner air amid the sticky, rain-soaked climate.
Kolkata Weather Update: Key Highlights of the Forecast
- Moderate rainfall is predicted across several Kolkata neighborhoods, with intermittent showers likely to extend into late evening.
- High humidity levels are expected, potentially crossing 80%, which may cause discomfort during outdoor activities.
- Air Quality Index (AQI) is forecast to stay in the good-to-moderate range, thanks to the cleansing impact of recent showers.
- Temperatures may hover between 26 °C at night and 34 °C during the day, with a chance of localized thunderstorms.
For live updates on weather forecasts and AQI, residents can check the India Meteorological Department (IMD) and Central Pollution Control Board (CPCB) portals.
Weather Context: From Cloudburst to Calm Showers
Earlier in September, Kolkata witnessed a rare cloudburst that flooded several neighborhoods, toppled pandal structures, and damaged electrical systems. That extreme event underscored the city’s vulnerability to climate variability and urban drainage issues.
Now, as the forecast indicates only moderate showers, city officials and pandal organisers are cautiously optimistic. While lighter rain helps wash away suspended pollutants from the air, prolonged showers continue to raise concerns about waterlogging in low-lying areas.
Impact on Durga Puja Preparations
Durga Puja, Kolkata’s most anticipated festival, is just days away. With pandal construction nearly complete across the city, organisers remain on edge:
- Pandal Safety: Wooden walkways, bamboo frames, and decorative cloth installations are sensitive to moisture. A repeat of heavy rainfall could undo weeks of preparation.
- Crowd Management: Organisers are considering staggered entry systems and covered waiting areas to ensure safety amid potential showers.
- Electrical Precautions: Waterproofing of wiring and backup generators have been prioritised, especially after reports of electrocution risks during earlier flooding.
The Kolkata Municipal Corporation (KMC) has assured residents that water pumps are being kept ready to drain flooded zones, a vital step for smooth festival management. For details on civic preparedness, see the KMC official website.
Public Health Angle: Rain and Air Quality
The expected clean air quality is a silver lining. Moderate rain has a “scrubbing effect,” reducing airborne particulates like PM2.5 and PM10, which are major contributors to respiratory illnesses.
- On average, Kolkata’s AQI hovers between 90–120 (moderate) during this season. Rain often lowers it into the 40–60 range (good).
- Residents with asthma or chronic bronchitis may still feel discomfort due to the muggy humidity, but reduced pollution will ease breathing difficulties.
For real-time air quality updates, residents can check IQAir’s Kolkata AQI tracker.
Risks & Challenges
Even with moderate rainfall, several challenges persist:
- Waterlogging: Areas like Ultadanga, Behala, and parts of Salt Lake are prone to knee-deep flooding after a few hours of rain.
- Traffic Disruptions: Sudden showers can snarl traffic at critical junctions like Esplanade and Park Circus.
- Health Risks: Standing water increases the chances of mosquito breeding, raising concerns about dengue and malaria.
- Structural Weakness: Temporary festival structures remain vulnerable until weather stabilises.
Climate Change and Kolkata’s Weather Extremes
Meteorologists point out that the September 2025 cloudburst reflects a larger global trend of intensified urban rainfall events caused by climate change. Kolkata, being a low-lying delta city, is especially exposed.
Long-term solutions, experts suggest, include:
- Upgrading drainage infrastructure to handle flash floods.
- Urban greening projects to absorb excess water and reduce heat islands.
- Sustainable festival planning, with eco-friendly materials resistant to moisture.
For academic resources on Kolkata’s urban climate resilience, readers can explore research papers via IPCC and TERI.
What Residents Can Do
With tomorrow’s forecast in mind, here are practical tips for Kolkatans:
- Carry umbrellas, raincoats, and waterproof footwear.
- Avoid flooded underpasses and waterlogged lanes.
- Keep electrical appliances at home elevated if in flood-prone zones.
- Use mosquito repellents and clear stagnant water near homes.
- Stay updated via IMD alerts for real-time warnings.
Conclusion
The Kolkata weather update paints a picture of cautious optimism: moderate rainfall and good air quality are welcome after the city’s recent weather upheavals. Yet, the persistence of high humidity and the looming risks of waterlogging remind residents to stay alert.
As the countdown to Durga Puja 2025 begins, the city’s resilience will once again be tested. Between managing natural elements and cultural celebrations, Kolkata stands poised to balance tradition with pragmatism, ensuring that the festive spirit thrives even under cloudy skies.
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