A massive power outage hit Spain and Portugal on Monday, shutting down trains, disrupting air travel and leaving large parts of the countries — including the capital cities of Madrid and Lisbon — in the dark.

According to Spain’s meteorological agency, AEMET, temperatures across the country were between 60 and 70 degrees Fahrenheit around the time of the power outages. By the end of the day, highs had climbed to between 82 and 87 degrees.