High Minimum Temperatures: A New Challenge in Spanish Summers
The State Meteorology Agency (AEMET) has recently analyzed meteorological conditions during the month of July. While we usually pay attention to maximum temperatures, extreme rainfall, or fast wind gusts, the most striking data from last month lies in the realm of minimum temperatures .
31.3º Celsius. This figure is not the absolute minimum temperature for July, which was a mere 0.7º Celsius recorded in Cap de Vaquèira, Lleida, far from remarkable. Instead, it refers to the highest minimum temperature recorded last month. On Thursday, July 17, the thermometer at the Agüimes station in Gran Canaria did not dip below 31.3º Celsius, signaling an unprecedented level of nighttime warmth.
This significant weather event occurred amid a warm spell that impacted vast regions of Gran Canaria . Forecasts indicated maximum temperatures nearing 40º Celsius , an unusual phenomenon for the islands, triggering AEMET to issue a red notice due to extreme risk. The situation underscored the ongoing changes in our climate and how they manifest locally.
Tropical Nights, Equatorial Nights. The challenge of exceptionally high minimum temperatures has persisted through this summer. Numerous instances have emerged across various geographic locations where nighttime cooling has been insufficient, leaving residents uncomfortable. The term tropical nights typically refers to evenings where temperatures do not drop below 20º Celsius . In contrast, Equatorial or Torrid Nights occur when temperatures remain above 25º Celsius . Alarmingly, there have been instances where nighttime temperatures did not even decrease to 30º Celsius .
Ensure Rest. Reconciling sleep under these temperatures becomes a formidable task, particularly for those without fans or air conditioning. It is crucial to note that while maximum temperatures often capture headlines, high minimum temperatures can significantly affect our quality of life by disrupting our nighttime rest.
A Worrying Trend. This emerging issue is not merely a seasonal quirk; if current forecasts hold true, high minimum temperatures are likely to worsen. Long-term predictions suggest that climate change will exacerbate these conditions, affecting not just this summer but the subsequent months ahead. Already, August has commenced with a heatwave affecting a significant portion of the Peninsula .
This current heatwave is also associated with high minimum temperatures. For instance, tonight, temperatures are forecasted to remain above 20º Celsius in various regions of the country. In parts of the Mediterranean, southern Peninsula, Northeast depressions, and even areas of northern Peninsula, the thermometer may stay elevated at 25º Celsius and higher.
Not Just Heat. AEMET’s new statistics also highlight the absolute maximum temperature recorded in July: an impressive 43.3º Celsius observed in Granado, Huelva on Tuesday, July 1, marking the onset of the season’s initial heatwave. In addition to high temperatures, the agency reported significant storm activity during the month, including wind gusts reaching 133 km/h in Caspe, Zaragoza on July 10, and an astounding 155.4 mm of rainfall recorded on July 12 in Vilafranca del Penedés, Barcelona .
This statistic becomes even more striking considering that throughout the entire month, 216.4 mm of rain accumulated in the Catalan town, meaning that over 70% of monthly rainfall was registered in just one day. This statistic serves as a stark reminder of the increasingly volatile weather patterns we are experiencing.
In light of these developments, it’s essential to reflect upon how climate change is reshaping our weather patterns and affecting ordinary life. Citizens are increasingly finding themselves adjusting to new realities dictated by extreme weather conditions, which include both scorching heat and sudden downpours.
A comprehensive understanding of these data and meteorological phenomena can help us prepare better for the future, respond effectively, and perhaps foster a greater respect for our planet’s natural systems.

