Spain sets unprecedented heat records in May
Spain Experiences Early Heatwave with Record-Breaking Temperatures Reaching Nearly 40 Degrees in the Shade
Spain is currently grappling with soaring temperatures, with several regions recording unusually high late May readings. According to the state weather service Aemet, temperatures reached nearly 40 degrees in the shade across large parts of the country on Thursday [1]. The cities of Madrid, Zaragoza, and Sevilla—particularly Sevilla in the Andalusia region—saw heat records for late May, with thermometers ranging from 35 to 39 degrees.
The early onset of this heatwave highlights the increasing likelihood of extreme heat events, many of which are becoming more frequent and occurring earlier in the year due to human-induced climate change. Aemet issued an orange heat warning, indicating "serious risks" to vulnerable groups, including children, the elderly, and those with health issues, for the Sevilla area [1].
In contrast, the popular German holiday island of Mallorca enjoyed relatively pleasant temperatures of 28 degrees, while the Canary Islands had readings of 25 degrees [2]. However, the heatwave is expected to persist until at least Sunday, potentially accompanied by severe hailstorms and strong gusts of wind in the north of the country [2].
Spain's unusual early heat can be attributed to a variety of factors [3]. Long-term climate trends in Spain show a clear warming pattern, with the average annual temperature increasing by almost 1.7°C from 1961 to 2024. This trend has been linked strongly to global climate change. The period 2022-2024 was recorded as the hottest three-year period in Spain's history, with 2023 identified as the second warmest year after 2022. These warming trends set the stage for earlier and more intense heatwaves [3].
Additionally, changes in atmospheric circulation patterns contributed to anomalous weather in spring 2023, leading to unusually warm and luxuriant spring rains in southern Spain while northern Europe faced drought conditions. These shifts created conditions conducive to higher temperatures early in the year [3].
The intense and persistent heatwaves have raised public health concerns, with the primary risk being heat exhaustion and related ailments, particularly during hotter nights [1]. The increased heat has also elevated the risk of forest fires significantly, especially in areas where drought conditions persist [3].
The impacts of this early heat stretch beyond health and environmental concerns and extend to the economy. Tourism, a major sector in Spain's economy, faces challenges under the stifling conditions, as both residents and tourists grapple with the heat [2].
Forecasts from AEMET suggest that temperatures are expected to remain high through late May and into early June, with the summer predicted to be warmer than usual [3]. The trend of more frequent and intense heatwaves is also expected to continue, posing ongoing challenges for public health, natural resources, and firefighting efforts [1].
Sources:[1] ntv.de, dpa[2] Spanish State Meteorological Agency (AEMET)[3] AEMET Drought Forecast[4] Copernicus Climate Change Service (C3S)[5] European Drought Observatory (EDO)
The early heatwave in Spain underscores the implications of human-induced climate change on environmental-science phenomena such as weather and climate-change. Furthermore, the increasing frequency and severity of heat events, like the one currently experienced in Spain, are concerning for public health, especially during heatwaves that extend beyond typical summer months.
