Burgos is facing unseasonable heat as autumn begins, with daytime temperatures expected to exceed 30 degrees in many places. The veranillo de San Miguel is bringing dry air and stable conditions more typical of July than late September.
The Agencia Estatal de Meteorología (Aemet) says temperatures in Burgos city will rise each day, potentially reaching 33 degrees on Thursday and Friday. Overnight lows will range from 10 to 14 degrees, bringing chilly mornings before hot afternoons. Little or no rain is expected, extending the dry spell that followed a record August. Aemet reports that this was Spain’s hottest summer since records began in 1869, with an average temperature of 24.5°C, 2.4°C above the 1991 to 2020 average.
On September 9, Spain activated a red heat alert for the first time in September, marking an unprecedented level of risk for that time of year.
Aranda, in the Ribera del Duero, will see a similar pattern. Skies will remain clear, with highs of 31 to 32 degrees. Temperatures could fall to 9 degrees in the early morning, but the heat will return quickly. No rain is expected, and barely any wind will disturb the still air.
Miranda de Ebro is forecast to reach even higher temperatures, with peaks of 35 degrees on Thursday and Friday. Overnight lows will range from 9 to 13 degrees, making for sharp day-to-night swings that can exceed 20 degrees. Skies will be mostly clear, and weak winds may make the daytime heat feel stronger. Aemet has maintained yellow and orange heat warnings in several autonomous communities, including Castilla y León, because of the high temperatures.
Aemet and Meteored say this week’s temperatures will be more than four degrees above the seasonal average, with a real possibility of new records. The veranillo de San Miguel, which usually brings a brief warm spell around September 29, is stronger than usual this year. The heat is spreading across Burgos and much of Spain.
Aemet has reported that Spain experienced 61 days of heat waves on the Iberian Peninsula and Balearic Islands in 2026, a record since 1961. The agency also forecasts a 60 to 70% probability of above-normal temperatures across Spain from September to November, suggesting the warm anomaly is likely to persist into autumn.
Some relief could arrive after the weekend. Meteored says cooler air and possibly a front may move in from Sunday, bringing lower temperatures and more unsettled weather. Until then, rain is expected to stay away and hot, dry conditions will continue in Burgos.
The persistent heat at the start of autumn is disrupting familiar seasonal patterns. For residents and farmers, the lack of rain and prolonged warmth bring practical difficulties, from water shortages to daily discomfort.
