Kolkata Weather Forecast: Kolkata is gearing up for a spell of rainy weather that promises both relief and challenges for the city’s residents. The latest Kolkata weather forecast suggests moderate showers, humid conditions, and overcast skies dominating the day. While this means commuters may face slippery roads and occasional waterlogging, it also signals a much-needed improvement in the city’s air quality, offering a breath of fresh air to citizens after days of moderate pollution.
Kolkata Weather Forecast: Detailed Weather Outlook
According to the latest meteorological updates, the day is expected to unfold as follows:
- Temperature: A maximum of around 28.8°C and a minimum of about 25.2°C.
- Humidity: High, hovering close to 86%, especially in the early part of the day.
- Rainfall: Moderate showers likely in the afternoon and evening hours, with cloudy skies persisting throughout the day.
- Winds: Speeds up to 19 km/h, enough to bring relief but not strong enough to clear atmospheric moisture completely.
- Air Quality: The Air Quality Index (AQI) yesterday stood at 51, considered “moderate.” With rainfall expected, suspended particulate matter like PM2.5 and PM10 will likely settle, improving air quality further.
How Rain Impacts Air Quality
Rain acts as a natural air purifier. When droplets fall, they capture pollutants such as dust, smoke particles, and harmful gases, carrying them to the ground. For Kolkata—where traffic congestion, industrial activity, and construction often add to pollution levels—rainfall provides a temporary but welcome reset.
- PM2.5 (21 µg/m³) and PM10 (51 µg/m³) levels were measured yesterday. Both are expected to dip following showers.
- Carbon monoxide (CO) concentrations, mainly from vehicles, may also reduce slightly as rainfall disperses trapped pollutants.
Such improvements are particularly significant for vulnerable groups—children, the elderly, and those with respiratory illnesses.
Health and Lifestyle Implications
The weather shift brings both comfort and caution:
- Respiratory Relief: With reduced pollutants, individuals suffering from asthma, COPD, and other respiratory problems may find breathing easier.
- Humidity Discomfort: High moisture levels in the air may trigger skin allergies, fungal infections, or general unease.
- Waterlogging Risks: Even moderate showers can disrupt daily life in pockets of Kolkata prone to drainage congestion.
- Mosquito Breeding: Pooled rainwater can contribute to mosquito growth, increasing the risk of vector-borne diseases like dengue and malaria.
Precautionary Measures for Citizens
- Always carry an umbrella or raincoat to manage sudden showers.
- Wear waterproof footwear to avoid slips and exposure to dirty water.
- Ensure proper indoor ventilation to counter dampness and mold growth.
- Use mosquito repellents and maintain dry surroundings to reduce health risks.
- People with respiratory conditions should monitor air quality updates regularly.
Historical Weather Patterns in Kolkata
Kolkata’s tropical wet-and-dry climate is known for its sharp seasonal shifts. The monsoon rains (June to September) usually account for most of the city’s annual rainfall, but post-monsoon showers, like the ones forecast today, often serve as transitional markers.
In recent years, however, climate variability has altered these patterns:
- Short, intense downpours are more common.
- Dry spells have grown longer, raising dust levels.
- Extreme humidity episodes are increasingly frequent.
These changes highlight the impact of global warming and urban heat islands on Kolkata’s climate system.
Role of Government Agencies
Weather monitoring and public safety in Kolkata is a coordinated effort involving several institutions:
- India Meteorological Department (IMD): Provides official forecasts, alerts, and advisories (imd.gov.in).
- Central Pollution Control Board (CPCB): Tracks air quality and issues health advisories (cpcb.nic.in).
- West Bengal Pollution Control Board (WBPCB): Monitors city-specific pollution sources and local AQI levels (wbpcb.gov.in).
- Ministry of Health & Family Welfare: Issues public health guidelines during high humidity and pollution days (mohfw.gov.in).
These bodies collectively help residents stay informed and safe during weather transitions.
Broader Climate and Environmental Concerns
- Urban Flooding: Kolkata’s low-lying geography and ageing drainage network make even moderate rains a potential hazard.
- Climate Change Signals: Erratic rains and temperature fluctuations suggest a shift in regional climate behavior.
- Green Cover Loss: Urbanization reduces tree cover, intensifying both heat retention and flooding risks.
- Public Health Linkages: A cleaner post-rain environment improves short-term health, but unless long-term emission sources are curbed, benefits remain temporary.
Public Voices and Expert Views
Environmental experts stress that rainfall cannot be the city’s only air-cleanser.
“Rain washes the air, but once the skies clear, pollution levels rise again unless we reduce traffic emissions and construction dust,” says Dr. Sumita Banerjee, an environmental scientist based in Kolkata.
Residents also have mixed feelings. While many welcome the cool breeze and fresher air, others worry about clogged drains, slippery roads, and the inconveniences of monsoon-like weather outside the usual season.
Looking Ahead
The week is likely to remain wet, with intermittent rainfall. Wednesday is forecast to see the heaviest showers—around 10.15 mm—while other days will feature moderate to light rainfall. Temperatures are expected to range between 25°C and 33°C, with persistent humidity.
For citizens, this means preparing for unpredictable showers, adjusting commuting schedules, and paying attention to official weather alerts.
Conclusion
The latest Kolkata weather forecast of moderate showers and overcast skies may bring temporary inconveniences but also offers significant environmental benefits. Improved air quality, cooler conditions, and natural cleansing of pollutants highlight the critical role rainfall plays in urban ecosystems.
However, for long-term relief, Kolkata must focus on reducing pollution at its source, upgrading drainage systems, and adapting to climate variability. The rain is both a blessing and a reminder: while nature offers relief, sustainable human action is key to preserving it.
✅ Useful References:
- India Meteorological Department (IMD)
- Central Pollution Control Board (CPCB)
- West Bengal Pollution Control Board
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