Birth seasonality in Portugal

Portugal: Birth seasonality was 21.68 births per million people in 2023. ▼ Falling

Latest (2023)
21.68 births per million people
Change on year
down 0.7%
World rank
28th
of 40 countries
All-time high
84.38 births per million people
in 1910
All-time low
19.5 births per million people
in 2020
Years of data
113
1901–2023

Birth seasonality in Portugal, 1901–2023

20406080190119622023

Source: Human Mortality Database (2025) – processed by Our World in Data. Measured in births per million people.

Analysis

Portugal recorded 21.68 births per million people for birth seasonality in 2023.

That represents a change of down 0.7% on the previous year and up 2.9% over ten years.

Over the whole period, birth seasonality in Portugal peaked at 84.38 births per million people in 1910 and was at its lowest, 19.5 births per million people, in 2020.

That places Portugal 28th out of 40 countries with data for 2023, putting it in the middle of the range.

The long-run direction has been consistently falling across the 113 years of available data.

Averages by decade

DecadeAverage LowestHighest Years
1900s 62.54 births per million people 58 births per million people 68.37 births per million people 9
1910s 70.89 births per million people 56.65 births per million people 84.38 births per million people 3
1920s 72.9 births per million people 69.81 births per million people 75.51 births per million people 7
1930s 71.12 births per million people 67.87 births per million people 74.08 births per million people 10
1940s 68.69 births per million people 60.34 births per million people 76.64 births per million people 10
1950s 63.65 births per million people 53.87 births per million people 68.61 births per million people 10
1960s 62.62 births per million people 55.68 births per million people 70.44 births per million people 10
1970s 49.98 births per million people 40.8 births per million people 55.33 births per million people 10
1980s 35.51 births per million people 30.9 births per million people 41.19 births per million people 10
1990s 29.57 births per million people 28.29 births per million people 30.92 births per million people 10
2000s 27.39 births per million people 25.6 births per million people 30.47 births per million people 10
2010s 22.73 births per million people 21.07 births per million people 27.06 births per million people 10
2020s 21.09 births per million people 19.5 births per million people 21.83 births per million people 4

Countries ranked near Portugal

  1. 25 Switzerland 22.78 births per million people compare
  2. 26 Bulgaria 21.85 births per million people compare
  3. 27 Austria 21.77 births per million people compare
  4. 29 Sweden 21.28 births per million people compare
  5. 30 Norway 19.73 births per million people compare
  6. 31 Finland 19.34 births per million people compare

See the full ranking of 40 places →

More population data for Portugal

All data for Portugal →

Frequently asked questions

What is birth seasonality in Portugal?
Birth seasonality in Portugal was 21.68 births per million people in 2023, according to Human Mortality Database (2025) – processed by Our World in Data.
What is the highest birth seasonality recorded in Portugal?
The highest recorded value was 84.38 births per million people in 1910.
What is the lowest birth seasonality recorded in Portugal?
The lowest recorded value was 19.5 births per million people in 2020.
How does Portugal rank for birth seasonality?
Portugal ranks 28th out of 40 countries with data for 2023.
Is birth seasonality rising or falling in Portugal?
Over the last ten years it is up 2.9%. The long-run trend across the full record is falling.
Where does this Portugal data come from?
The figures come from Human Mortality Database (2025) – processed by Our World in Data, published as part of Birth seasonality. Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 113 observations, free to reuse under CC BY 4.0 (Our World in Data).

About this data

Indicator
Birth seasonality
Unit
births per million people
Source
Human Mortality Database (2025) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
40 places, 3,607 data points, 1840–2024
Last refreshed

The average daily number of births, per million people, calculated for December.