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
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.
Birth seasonality in Portugal, year by year
| Year | births per million people | Change |
|---|---|---|
| 1901 | 58 births per million people | — |
| 1902 | 60.53 births per million people | +4.4% |
| 1903 | 61.39 births per million people | +1.4% |
| 1904 | 59.09 births per million people | -3.7% |
| 1905 | 67.8 births per million people | +14.7% |
| 1906 | 68.37 births per million people | +0.8% |
| 1907 | 66.97 births per million people | -2.1% |
| 1908 | 59.98 births per million people | -10.4% |
| 1909 | 60.75 births per million people | +1.3% |
| 1910 | 84.38 births per million people | +38.9% |
| 1918 | 56.65 births per million people | -32.9% |
| 1919 | 71.65 births per million people | +26.5% |
| 1920 | 69.81 births per million people | -2.6% |
| 1921 | 73.85 births per million people | +5.8% |
| 1922 | 75.51 births per million people | +2.2% |
| 1923 | 72.69 births per million people | -3.7% |
| 1924 | 71.24 births per million people | -2.0% |
| 1925 | 72.11 births per million people | +1.2% |
| 1929 | 75.08 births per million people | +4.1% |
| 1930 | 73.83 births per million people | -1.7% |
| 1931 | 71.31 births per million people | -3.4% |
| 1932 | 72.2 births per million people | +1.3% |
| 1933 | 70.89 births per million people | -1.8% |
| 1934 | 72.7 births per million people | +2.6% |
| 1935 | 72.19 births per million people | -0.7% |
| 1936 | 68.21 births per million people | -5.5% |
| 1937 | 67.88 births per million people | -0.5% |
| 1938 | 74.08 births per million people | +9.1% |
| 1939 | 67.87 births per million people | -8.4% |
| 1940 | 67.49 births per million people | -0.6% |
| 1941 | 60.34 births per million people | -10.6% |
| 1942 | 65.83 births per million people | +9.1% |
| 1943 | 70.9 births per million people | +7.7% |
| 1944 | 68.33 births per million people | -3.6% |
| 1945 | 76.64 births per million people | +12.2% |
| 1946 | 69.22 births per million people | -9.7% |
| 1947 | 65.12 births per million people | -5.9% |
| 1948 | 74.6 births per million people | +14.6% |
| 1949 | 68.45 births per million people | -8.2% |
| 1950 | 66.61 births per million people | -2.7% |
| 1951 | 61.01 births per million people | -8.4% |
| 1952 | 66.05 births per million people | +8.2% |
| 1953 | 63.31 births per million people | -4.1% |
| 1954 | 53.87 births per million people | -14.9% |
| 1955 | 63.7 births per million people | +18.3% |
| 1956 | 61.39 births per million people | -3.6% |
| 1957 | 66.22 births per million people | +7.9% |
| 1958 | 68.61 births per million people | +3.6% |
| 1959 | 65.78 births per million people | -4.1% |
| 1960 | 63.3 births per million people | -3.8% |
| 1961 | 70.44 births per million people | +11.3% |
| 1962 | 66.53 births per million people | -5.5% |
| 1963 | 61.49 births per million people | -7.6% |
| 1964 | 66.16 births per million people | +7.6% |
| 1965 | 64.36 births per million people | -2.7% |
| 1966 | 58.09 births per million people | -9.7% |
| 1967 | 62.7 births per million people | +7.9% |
| 1968 | 55.68 births per million people | -11.2% |
| 1969 | 57.43 births per million people | +3.1% |
| 1970 | 55.33 births per million people | -3.7% |
| 1971 | 51.48 births per million people | -6.9% |
| 1972 | 53 births per million people | +2.9% |
| 1973 | 50.71 births per million people | -4.3% |
| 1974 | 47.59 births per million people | -6.2% |
| 1975 | 52.03 births per million people | +9.4% |
| 1976 | 52.65 births per million people | +1.2% |
| 1977 | 49.56 births per million people | -5.9% |
| 1978 | 46.65 births per million people | -5.9% |
| 1979 | 40.8 births per million people | -12.5% |
| 1980 | 41.19 births per million people | +0.9% |
| 1981 | 39.87 births per million people | -3.2% |
| 1982 | 40.24 births per million people | +0.9% |
| 1983 | 37.65 births per million people | -6.4% |
| 1984 | 35.87 births per million people | -4.7% |
| 1985 | 33.15 births per million people | -7.6% |
| 1986 | 33.62 births per million people | +1.4% |
| 1987 | 30.9 births per million people | -8.1% |
| 1988 | 31.06 births per million people | +0.5% |
| 1989 | 31.53 births per million people | +1.5% |
| 1990 | 30.55 births per million people | -3.1% |
| 1991 | 30.39 births per million people | -0.5% |
| 1992 | 29.92 births per million people | -1.5% |
| 1993 | 28.95 births per million people | -3.2% |
| 1994 | 28.29 births per million people | -2.3% |
| 1995 | 28.32 births per million people | +0.1% |
| 1996 | 29.68 births per million people | +4.8% |
| 1997 | 29.26 births per million people | -1.4% |
| 1998 | 29.38 births per million people | +0.4% |
| 1999 | 30.92 births per million people | +5.2% |
| 2000 | 30.11 births per million people | -2.6% |
| 2001 | 27.11 births per million people | -10.0% |
| 2002 | 30.47 births per million people | +12.4% |
| 2003 | 27.19 births per million people | -10.8% |
| 2004 | 27.94 births per million people | +2.8% |
| 2005 | 27.77 births per million people | -0.6% |
| 2006 | 25.6 births per million people | -7.8% |
| 2007 | 25.96 births per million people | +1.4% |
| 2008 | 26.11 births per million people | +0.6% |
| 2009 | 25.68 births per million people | -1.7% |
| 2010 | 27.06 births per million people | +5.4% |
| 2011 | 23.94 births per million people | -11.5% |
| 2012 | 21.8 births per million people | -8.9% |
| 2013 | 21.07 births per million people | -3.4% |
| 2014 | 21.74 births per million people | +3.2% |
| 2015 | 22.94 births per million people | +5.5% |
| 2016 | 22 births per million people | -4.1% |
| 2017 | 22.41 births per million people | +1.9% |
| 2018 | 22.77 births per million people | +1.6% |
| 2019 | 21.56 births per million people | -5.3% |
| 2020 | 19.5 births per million people | -9.6% |
| 2021 | 21.36 births per million people | +9.6% |
| 2022 | 21.83 births per million people | +2.2% |
| 2023 | 21.68 births per million people | -0.7% |
Portugal compared with similar countries
- Portugal's 21.68 births per million people is below the median for high income countries, which is 23.36 births per million people, 93% of the median. (38 countries reporting)
- Portugal's 21.68 births per million people is below the median for Europe & Central Asia, which is 23.39 births per million people, 93% of the median. (31 countries reporting)
Biggest year-on-year movements
Years where Birth seasonality in Portugal changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1910 | +38.9% | 60.75 births per million people | 84.38 births per million people |
Averages by decade
| Decade | Average | Lowest | Highest | 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
- 25 Switzerland 22.78 births per million people compare
- 26 Bulgaria 21.85 births per million people compare
- 27 Austria 21.77 births per million people compare
- 29 Sweden 21.28 births per million people compare
- 30 Norway 19.73 births per million people compare
- 31 Finland 19.34 births per million people compare
More population data for Portugal
- Un population 2024 vs 2022, annual growth rate -0.4941 % change on previous year (2100)
- Population long run with projections, annual growth rate -0.0538 % change on previous year (2100)
- Urban and rural population 2050, annual growth rate -4.39 % change on previous year (2050)
- Population regions with projections, annual growth rate -0.0538 % change on previous year (2100)
- Population growth rate, by level of development -0.0% (2100)
- Number of children under 5, by world region 396,215 people (2100)
- Population density 95.56 people per km² (2100)
- World population growth -0.0% (2100)
- Projected population under age 5, annual growth rate 0.0558 % change on previous year (2100)
- Africa's Development Dynamics (AfDD) Table 03 - Annual population -0.2816 Percent per annum (2030)
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
Average daily number of births, per million people, calculated for December.