Kolkata Heatwave Alert: 7 Shocking Survival Tips to Beat the Brutal Temperature Spike

Kolkata is bracing for an intense heatwave, with temperatures expected to touch 37°C and exceed 40°C in western districts like Purulia and Bankura. Despite a milder April compared to 2023, rising humidity and relentless heat are creating oppressive conditions, especially at night. Clear skies and dry westerly winds are driving the temperature spike, while the humidity hampers the body’s natural cooling. Health experts are seeing a surge in dehydration and heat exhaustion cases, urging residents to hydrate, avoid peak sun hours, and dress appropriately.

Kolkatans are turning to traditional cooling methods and community support systems, such as water stalls and refreshing street drinks. However, experts warn that recurring heatwaves are linked to worsening urban heat island effects due to shrinking green spaces. The IMD’s dry spell forecast through April 26 emphasizes the urgency of adaptive measures. Long-term solutions—like greener infrastructure and public cooling zones—are essential to protect the city’s resilience in the face of escalating climate challenges.

Kolkata Heatwave Alert: 7 Shocking Survival Tips to Beat the Brutal Temperature Spike

As Kolkata gears up for a sweltering week ahead, the India Meteorological Department (IMD) warns of temperatures soaring to 37°C by mid-week, with western districts like Purulia and Bankura likely to surpass 40°C. While April has been milder compared to 2023’s relentless 40°C+ streaks, the combination of rising mercury and sticky humidity is set to test the city’s resilience. Here’s a deeper look at what’s ahead and how Kolkatans can navigate the heat.  

The Heat Breakdown: Dry Days, Sultry Nights 

The IMD attributes the spike to clear skies and dominant dry westerly winds, which minimize cloud cover. While daytime highs are concerning, nights bring little relief—minimum temperatures hover around 28°C (2°C above normal), with humidity levels lingering near 60-70%. This “double whammy” creates a RealFeel of up to 42°C, making even evenings oppressive.  

A Silver Lining? This April vs. Previous Years 

Ironically, 2024’s April has been gentler so far. By this time last year, Kolkata had already endured multiple heatwaves, with Alipore hitting 40.5°C on April 18, 2023. Recent thunderstorms, including Thursday’s 50 mm downpour in parts of the city, provided temporary respite. However, the IMD’s dry weather forecast until April 26 signals a turning point.  

Why Humidity Makes Nights Miserable 

High nighttime humidity disrupts the body’s natural cooling process. “Sweat doesn’t evaporate efficiently in humid conditions, so heat stress persists even after sunset,” explains meteorologist Rajesh Kumar. This is particularly dangerous for vulnerable groups like the elderly and outdoor workers.  

Health Risks and Expert-Backed Precautions 

Doctors report a 30% rise in heat-related cases, including dehydration and heat exhaustion. Dr. Priya Sharma, a Kolkata-based physician, advises:  

• Hydrate strategically: Opt for water, electrolytes, or chaas (buttermilk) over sugary drinks.  

• Avoid peak sun: Postpone outdoor activities between 11 AM–4 PM.  

• Dress smart: Light-colored, loose cotton clothing aids sweat evaporation.  

• Cooling hacks: Use damp curtains or DIY air coolers with ice buckets for temporary relief during power cuts. 

How Kolkatans Are Adapting 

Local traditions shine during heatwaves. Street vendors report soaring sales of gola (shaved ice), lemonade, and aam panna (raw mango drink). Markets buzz with purchases of desert coolers and energy-efficient fans. Meanwhile, community initiatives, like free water stalls, are popping up to support laborers and rickshaw pullers.  

The Bigger Picture: Climate Trends 

IMD data reveals a worrying pattern: heatwaves in Kolkata now start earlier and last longer. A 2023 study by the University of Calcutta linked this to urban heat island effects, where concrete and reduced greenery trap heat. While this year’s temperatures are lower, experts urge long-term solutions—expanding green cover, heat-resistant infrastructure, and public cooling centers.

Bottom Line 

Kolkata’s upcoming heat surge is a reminder of climate challenges ahead. While immediate coping strategies are vital, sustainable urban planning and heightened awareness are critical to safeguarding the city’s future. As the sun beats down, staying informed, hydrated, and community-focused will be key to weathering the storm—one sweaty day at a time.