Mainland Portugal will face a new heat wave between September 12 and 15, with maximum temperatures approaching or reaching 40°C in various regions of the country. This situation occurs in a context where summer extends in Portugal, maintaining high temperatures even already in the middle of September.
Between September 8 and 9, a cold front will cross the mainland territory, bringing rain and a sharp and sudden drop in temperatures. This weather phenomenon is accompanied by post-frontal polar air that will affect a large part of the country.
However, this change in the weather will only be temporary. From Thursday, September 10, thermal recovery is expected, and over the following days there is a tendency for the gradual intensification of heat in Portugal.
The reference maps from Meteored indicate that temperatures will rise almost consecutively until the end of the week and beginning of next week, confirming the arrival of a new episode of high temperatures after the brief period of rain and coolness.




