Spain is expecting a significant heat wave this weekend with high temperatures across central and southern regions [1].

These weather patterns pose risks to public health and infrastructure as the country enters its first major heat event of the summer. The persistence of high temperatures during the night prevents the environment from cooling, increasing the physical strain on residents.

Rubén del Campo, spokesperson for the Agencia Estatal de Meteorología (AEMET), said the region will see daytime temperatures over 30 °C [2] across broad peninsular zones. In some areas, peak temperatures during this first summer heat wave are expected to exceed 40 °C [3].

Del Campo said some nights will reach 25 °C [1]. These conditions, known as tropical nights, are particularly prevalent in the south and center of the country.

While the south and center face extreme heat, the north-west is forecast to be cooler [1]. Del Campo said the weekend will bring a slight thermal respite to northern Spain [4]. However, reports on the north vary, as some forecasts indicate that the broad peninsular trend of temperatures over 30 °C may still affect these areas [2].

In addition to the heat, the AEMET spokesperson said that storms are expected in the interior of the country [2]. Despite these storms, precipitation is expected to be limited in most affected zones [2].

Local authorities are monitoring the situation as the heat wave persists. The combination of extreme daytime peaks and warm nights creates a sustained thermal load on the population [3].

“Habrá noches de hasta 25º”

The arrival of the first major heat wave of the season, characterized by both extreme daytime peaks and 'tropical nights,' indicates an early onset of severe summer weather. The disparity between the cooling in the north and the intense heat in the south underscores the regional volatility of the Iberian Peninsula's climate, requiring localized public health responses to mitigate heat-related illness.