In Spain, the highest temperature ever recorded was reached in April, with a maximum of 38.4 °C recorded late Thursday afternoon at Córdoba airport in the south of the country.
In many other cities of Andalusia, the region where Córdoba is located, temperatures exceeded 30 °C, with a maximum of 35 °C in Seville.
In general, in April the maximum temperatures recorded in Spain were 10-15 °C higher than the seasonal average for several days.
According to experts, this year will be the hottest April ever recorded in the country and will worsen the already difficult conditions related to drought and lack of water reserves to cope with the end of spring and summer.
The maximum temperatures recorded in recent days were caused by the passage of a hot air front to the Iberian Peninsula from Africa, combined with a phase of slow evolution of atmospheric conditions due to high pressure.
It's a phenomenon that occurs with some frequency, but usually in late spring and summer, hardly with such widespread and early heat waves.
To reduce the risks to the population, various local Spanish administrations have already put into practice the procedures usually adopted for summer heat waves.
In many areas, school timetables were changed, to concentrate lessons in cooler times of the day or to end them earlier, while in Madrid public transport service was strengthened to reduce waiting times.
Public swimming pools were opened a month earlier and assistance plans were launched for the elderly and the weaker sections of the population.
The heat of the last few days will have further consequences in the increasingly severe drought in many areas of Spain.

In the first three weeks of April, about a quarter of the rain that normally falls at this time of year fell.
Data for the last few days of the month is not yet available, but this month is likely to be the driest month on record in the country.
According to forecasts, maximum temperatures should drop over the weekend, but it could already be hot again from early May, starting in southern Spain.
Last year, highs above 40 °C were recorded in May, with a further deterioration between June and July with two heat waves affecting several other areas of Europe.
The heat and drought had contributed to the increase in forest fires, among the largest recorded in the country in recent years.
It is difficult to trace a single meteorological event to climate change, especially in the short term, but extensive research has signaled for some time that these events are becoming more and more extreme precisely because of global warming. Last year was the second warmest on record in Europe with the hottest season on record.
Overall, the continent is experiencing a more intense increase in average temperature than the global average, with major implications, both in the immediate term for health emergencies related to heat waves, and in the medium and long term for lack of rainfall, especially in Southern Europe.
Spain's government recently asked the European Union for help to support struggling farmers due to a long period of drought, which makes planting impractical.
The country is a major exporter of fruit, vegetables and raw materials for the food sector: crop cuts could have ramifications for the rest of Europe and affect prices, which have already risen due to inflation.
In Europe, the late winter and early spring months were warmer than average, with little rain in many cases insufficient to restore water reserves already tested by last year's drought.
The heat wave also affected other areas of the planet early, with temperatures above 45 °C in northwest Thailand and 40 °C in Dhaka, the capital of Bangladesh.