If we talk of the temperature in summer season, Jacobabad in Sindh, Sibbi in Balochistan and Multan and Muzaffargarh in Punjab are the hottest places in Pakistan.
The weather extremes in Pakistan include high and low temperatures, heaviest rainfall and flooding. The highest temperature ever recorded in Pakistan is 53.5 °C which was recorded in Moenjo Daro, Sindh on 26 May 2010. It was not only the hottest temperature ever recorded in Pakistan but also the hottest reliably measured temperature ever recorded on the continent of Asia. and the fourth-highest temperature ever recorded on Earth. The second-highest temperature ever recorded in Pakistan is 53 °C (127 °F) which was recorded in Larkana, Sindh on 26 May 2010. It is hottest city in Pakistan, as well as the second-hottest city in the world, but it is second-hottest place in Pakistan and fifth-hottest place in the world. It is fifth-highest temperature ever recorded on Earth. The highest rainfall of 620 millimetres (24 in) was recorded in Islamabad in 24 hours on 23 July 2001. The record-breaking rain fell in just 10 hours.
The standard measuring conditions for temperature are 1.2 meters above the ground out of direct sunlight (hence the term, x degrees "in the shade").
Heat waves mostly occur during summer months but in Pakistan heat waves occur at any time period between April and September and bring high temperatures but most powerful heat waves occur in May and June. Some areas of southern Pakistan usually experience above 50 °C (122 °F) temperature and play havoc in these areas. The most deadly heat wave in the history of Pakistan is the record-breaking heat wave of summer 2010 which occurred in the last ten days of May.
List of cities with temperature of 50 °C or above
Temperature extremes in Pakistan over 50 °C (122 °F) based on data from the Pakistan Meteorological Department, 1931–2017 and other sources
Record breaking 2010 summer heat wave
The hottest temperature ever recorded in Asia and the fourth-highest temperature ever recorded in the world was in Mohenjo-daro, Sindh at 53.5 °C (128.3 °F) while the second-hottest temperature ever recorded in Asia and the fifth-highest temperature ever recorded in the world was in Larkana, Sindh at 53 °C (127 °F) on May 26, 2010. Twelve cities in Pakistan saw temperatures above 50 °C (122 °F) during the extreme heatwave of summer 2010, which lasted from May 22 to May 31, 2010. On May 27, temperatures higher than 45 °C (113 °F) hit areas across Pakistan and at least 18 people died as a result. Also, during the extreme heatwave season, 11 cities saw their highest-ever recorded temperatures of 50 °C (122 °F) or above, and five cities saw temperatures of 53 °C (127 °F). Eleven cities also saw extremes of more than 45 °C (113 °F) but below 50 °C (122 °F). The previous record for Pakistan and for Asia was on June 12, 1919 at 52.8 °C (127.0 °F) at Jacobabad