In statements to Lusa, meteorologist Jorge Ponte explained that, although it may still be "a little early for a forecast" for New Year's Eve, "and it may still undergo some changes," however, "the trend is for the weather to be generally dry and temperatures to be within the normal range for the time of year."

These will be values ​​"close to zero, or even slightly below zero in the northeast of Trás-os-Montes and Beira Alta, and between 5 and 10 degrees in the rest of the territory, in relation to minimum temperatures," he specified.

“The maximum temperatures will naturally be a little higher, between 10 and 15 degrees, in most of the country and lower in the northern and central interior,” added the meteorologist.

On Saturday, “there will be precipitation in the southern region. This precipitation will be heavy at times in the Algarve, hence the yellow warning issued during the morning, and will extend from the afternoon to the central region as well. It will not rain in the northern region.”

Combined with this precipitation and maximum temperatures that are “still quite low,” Saturday will be a day “with cold temperatures and some precipitation even in the Greater Lisbon area.”

Sunday

Then, starting Sunday, “these conditions will change, the precipitation occurring in the following days will be weaker and more scattered,” with days that are “generally dry and with temperatures within what is normal for the time of year,” he specified.

“The most significant thing, from the 29th onwards, may be the morning fogs, which may persist in the northeast of Trás-os-Montes and Beira Alta,” where maximum temperatures “will be very low and there may even be the formation of hoarfrost, that is, the deposition of ice on surfaces,” added Jorge Ponte.

The Directorate-General of Health (DGS) warned on Tuesday about the precautions to take because of the cold, reminding that the drop in temperatures increases the risk of worsening chronic diseases and asking the population to protect themselves.