This country has been battling to boost its struggling birth rate and ageing population for almost a decade, having registered negative results since 2009.
Exacerbating this, according to newspaper Jornal de Notícias, is news that Portugal, over the past year, lost 32,000 residents.
In a nutshell, more people are leaving the country than coming into it, and more people are dying than being born in it.
According to data from the official EU statistics office, in 2016 Portugal had about 87,000 births - a rate of 8.4 births per 1,000 inhabitants, the second lowest rate in the EU, just ahead of Italy.
Portugal also had a death rate of 10.8 per 1,000 inhabitants; its total population declined from 10.341 million on 1 January, 2016, to 10.309 million on 1 January, 2017, representing exactly 2 percent of the population of the EU.
Eurostat noted there was an increase in the EU population from 510.3 million on 1 January, 2016, to 511.8 million on 1 January, 2017, but recorded the same number of births and deaths (5.1 million), which means that the natural variation of the population of the EU was neutral and the positive demographic variation of more than 1.5 million inhabitants is due to the migratory balance.
Germany is the most populous EU Member State, followed by France, (67 million), the United Kingdom (65.8 million), Italy, (60.6 million), Spain (46.5 million) and Poland (38 million).
Overall, the population increased throughout 2016 in 18 Member States and fell in 10 others, with the highest birth rates recorded in Ireland (13.5 per 1,000 population), Sweden and the United Kingdom (both 11.8) and the lowest in the southern countries: Italy and Portugal are followed by Greece (8.6) and Spain (8.7).
Earlier this year it was also revealed that Portugal had one of the lowest fertility rates in the EU, and was the country where the live birth rate had fallen the most.
Figures from Eurostat published in March showed that between 2001 and 2015, the number of live births in Portugal fell by more than 24 percent, from 112,774 to 85,500. In 2001, the fertility rate (number of live births per woman) was 1.45.
By contrast, Sweden saw the number of live births soar almost 26 percent, from 91,466 to 114,870.
Eurostat’s report further showed Bulgaria and Romania as the countries where women have their first child the youngest, at around 26-years-old. Italy is the country where they are oldest when giving birth to their first child, at almost 31.
In Portugal, the average age at which women have their first child is 29.5.