Karachi Heatwave Intensifies as Mercury Hits 42°C

Karachi remained in the grip of an intense heat spell on Sunday as the temperature climbed to 42°C, marking one of the harshest weather conditions faced by the port city this season. The Pakistan Meteorological Department said the heat was expected to remain severe, with limited immediate relief for residents across the metropolis.

According to the weather update, sea breezes were likely to return later in the evening, but daytime conditions had already pushed the city into a dangerous heat zone. The Met Office also warned that temperatures could rise further on Monday, while ruling out any possibility of rain in Karachi for the time being.

The latest surge followed a hot Saturday, when the city recorded a maximum temperature of 38.5°C. Officials had earlier cautioned that Sunday’s temperature could reach around 40°C, but the mercury rose even higher, intensifying concerns for people exposed to outdoor work, traffic congestion and power-related discomfort.

PMD Deputy Director Anjum Nazir Zaigham advised citizens to take precautionary measures, especially for children, elderly people, animals and valuables vulnerable to extreme heat. Residents were urged to avoid unnecessary outdoor movement during peak afternoon hours and to remain hydrated as dry and hot conditions continued.

Karachi’s heatwave conditions are part of a wider pattern affecting southern Pakistan, where unusually high temperatures have been forecast for parts of Sindh, southern Punjab and Balochistan. Weather experts have linked the current spell to regional atmospheric conditions that are keeping temperatures above normal across several plain areas.

The city has repeatedly faced severe summer heat episodes in recent years, placing pressure on public health systems and civic infrastructure. Heatwaves in Karachi often become more hazardous because of humidity, dense urban settlements, limited shade, prolonged outdoor labour and the urban heat island effect created by concrete-heavy neighbourhoods.

Authorities and health professionals typically advise people to avoid direct sunlight, wear light clothing, drink water regularly and seek medical help in case of heatstroke symptoms such as dizziness, confusion, weakness or fainting. The risk is particularly high for daily wage workers, traffic police, street vendors and commuters who remain outdoors for long periods.

The heat spell also carries economic and social consequences, as rising temperatures can affect workplace productivity, school routines, energy demand and household expenses. Increased use of fans, air coolers and air conditioners may further strain electricity demand during peak hours, particularly in densely populated areas.

Looking ahead, weather officials expect westerly winds to influence the region after the current phase, which may slightly reduce the intensity of the heat. However, the broader outlook for May and June remains challenging, with forecasts suggesting that intense heatwaves could continue across southern parts of the country.

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