Pakistan's Heat Crisis: What Rising Temperatures Mean for Millions
Pakistan's Heat Crisis: What Rising Temperatures Mean for Millions
Pakistan's average temperature in 2024 was 23.52°C — about 0.71°C warmer than historical norms, according to Pakistan Meteorological Department's 2024 climate report. That may sound small. It isn't. This temperature increase arrived alongside some of the most severe and damaging heat waves in Pakistan's recorded history, and the pattern continued into 2025 with even more extreme spikes.
What Happened
In late May 2024, a major heat wave hit Punjab, Sindh, and parts of Balochistan — the agricultural heartland of Pakistan. The timing matters. This was peak harvest season for wheat, and the moment when cotton and other summer crops were just beginning to grow. The extreme heat stressed irrigation systems, wilted young crops, and pushed power grids to the breaking point.
By 2025, conditions worsened. In Sindh province, temperatures ran 5 to 7 degrees Celsius above normal. At that level, the air becomes dangerous for people working outdoors without protection — a threat that haunts Pakistan's memory from the 2015 Karachi heat wave, which killed over 1,200 people.
These aren't separate problems. A heat wave in Pakistan's main farming regions is simultaneously a food-security crisis, a public-health emergency, and an economic shock. When temperatures soar, people use more air conditioning, the power grid fails, hospitals fill up, crops wither, and people struggling to earn daily wages face both physical danger and lost income.
Why the Official Numbers Understate the Problem
Pakistan's national average of 0.71°C above normal tells an incomplete story. The country sits in a geographic trap: vast dry plains, mountains that funnel hot air downward, and low vegetation to reflect sunlight. Because of these features, Pakistan starts out hotter than most places on Earth.
Within that already-hot country, regional differences are extreme. While the national average rose by less than 1 degree, Sindh saw jumps of 5 to 7 degrees. A politician or city planner looking only at the national figure would badly underestimate what people in Sindh actually faced. This gap — between the official summary and local reality — has been flagged before in climate studies of South Asia, but Pakistan's government and planning systems haven't yet adapted their tools to account for it.
What This Means Going Forward
The pattern visible in 2024 and 2025 lines up with how climate scientists describe global warming: the average temperature climbs, but the extremes climb even faster. This is sometimes called "loading the dice" — the odds of extreme heat keep getting worse.
Pakistan built its heat-emergency plans around the 2015 Karachi disaster. If the recent two years represent the new normal rather than a one-off spike, those plans are already out of date.
That's a serious problem because Pakistan's economy has little room to absorb the damage. The country is managing IMF loan conditions and a weak currency. Agriculture makes up roughly a quarter of the economy, and crops like cotton and rice are major exports. When heat damages harvests, the country loses foreign income precisely when it can least afford to. Energy demand surges just when the power system is weakest, forcing rolling blackouts that wreck factories, hospitals, and homes.
The Missing Piece
Pakistan's meteorological department tracks and reports temperatures with precision. But the official climate reports don't yet connect the dots to what that heat actually costs — lives lost, crops destroyed, electricity demand, medical strain. That kind of detailed impact analysis exists in academic research but hasn't been woven into Pakistan's national planning systems. For a country as exposed to heat as Pakistan is, closing that gap should be urgent.
The Bottom Line
Pakistan now has two consecutive years of documented extreme heat sitting in official records. Scientists predicted this would happen. But it's taking longer for the public, politicians, and planners to act on it as a permanent new reality rather than as occasional emergencies. Extreme events that were rare a few years ago are becoming common. Common events demand permanent solutions — not just crisis response when disaster strikes.
