The week of September 7 to 13 begins with summer weather in Portugal, but a cold front associated with a depression crossing the Bay of Biscay will temporarily alter the meteorological conditions. The front's approach is expected between Tuesday and Wednesday, bringing rain, strong wind and a drop in temperatures, mainly in the North and Centre regions of the country.
Tuesday will start with summer conditions, but cloud cover will increase during the afternoon and rain may arrive in the North by the end of the day. It is on Wednesday, September 9, that Luso Meteo predicts the most adverse conditions of the week, with rain during the early morning and morning in the North and Centre, moderate to strong wind from North or Northeast with locally strong gusts on the coast and exposed areas, and another drop in temperatures.
The cold front should lose intensity as it moves south, so precipitation tends to disappear quickly throughout Wednesday. During the afternoon, cloud cover will decrease and the sun will return to several regions, with the anticyclone reinforcing itself on Thursday and the weather becoming dry and stable again.
The break from the heat will be short. From Friday onwards, temperatures rise again and Luso Meteo admits a new approach to 40°C in the South. For the weekend, various scenarios point to dry weather, lots of sun and very high values, with even the possibility of a heat wave between September 11 and 16/18, although there is still uncertainty about the intensity and duration of the episode.
