A significant heatwave alert has been issued after the Pakistan Meteorological Department (PMD) warned of a strong high-pressure system developing in the upper atmosphere on 25 May, with further intensification expected by 26 May.
This weather pattern is set to trigger prolonged extreme heat conditions across Pakistan from 25 May to 31 May, raising concerns over public health, water availability, and urban heat stress.
Heatwave Forecast Across Pakistan
Meteorological experts confirm that daytime temperatures will remain 5°C to 7°C above seasonal norms across several major regions including Islamabad, Lahore, Rawalpindi, and central Punjab. In many urban centers, the mercury is expected to climb to 42°C–45°C, significantly increasing heat-related risks.
Northern and hilly regions such as Malakand Division, Hazara, Gilgit-Baltistan, and parts of Azad Kashmir are also expected to experience unusual warming. Temperatures in these areas may stay 38°C–40°C, which is well above typical seasonal patterns for high-altitude zones.
In contrast, southern and central Pakistan is likely to face the most intense heat stress. Interior Sindh and parts of southern Punjab and Balochistan are forecast to experience extreme conditions where temperatures may reach 47°C–50°C, particularly in districts including Jacobabad, Larkana, Dadu, Sibi, Multan, Rahim Yar Khan, Bahawalpur, and surrounding regions.
Karachi Weather Outlook
The Karachi heatwave forecast indicates persistently hot and dry conditions during the entire period. Maximum temperatures are expected to remain between 35°C and 38°C, with rising humidity levels likely to increase discomfort. Night temperatures are also expected to stay elevated, offering limited relief.
Affected Regions Across Pakistan
Major urban and rural zones expected to face severe heat stress include Peshawar, Mardan, Swabi, Nowshera, Kohat, Faisalabad, Gujranwala, Sialkot, Okara, Kasur, Sargodha, Jhang, Toba Tek Singh, Sahiwal, and multiple districts across Sindh, Punjab, Khyber Pakhtunkhwa, and Balochistan.
Azad Kashmir districts including Muzaffarabad, Mirpur, Kotli, and Neelum Valley are also expected to experience above-normal temperatures despite their usually moderate climate.
Weather Pattern Explanation
The Pakistan heatwave forecast is driven by the formation of a strong high-pressure system in the upper atmosphere. Such systems typically suppress cloud formation, reduce wind circulation, and trap heat near the surface, leading to prolonged temperature spikes.
Meteorologists warn that this pattern often results in:
- Increased heat stress in urban areas
- Higher risk of dehydration and heatstroke
- Strain on electricity demand due to cooling needs
- Reduced nighttime cooling
Public Advisory
Authorities are expected to issue heat safety guidelines, especially for vulnerable groups such as children, the elderly, and outdoor workers. Residents are advised to minimize sun exposure during peak afternoon hours and maintain adequate hydration.
