What was the most common birthday in Metropolitan France in 1980?

Name: Metropolitan France births by day, 1980
Creator: INSEE
Published: 2026-09-15

Published by Birthday Traffic · September 15, 2026 · Sources and method

May 20most births in 1980a Tuesday, 2,626 births
January 1fewest births in 1980a Tuesday, 1,682 births
Maybusiest month per day2,387 births per day
91%weekend levelSaturday and Sunday against a weekday, per day; Friday busiest

In 1980, Metropolitan France recorded 800,376 births over 366 days, 2,187 on an average day. The busiest single date was May 20, a Tuesday, with 2,626 births; the quietest was January 1, a Tuesday, with 1,682. May was the busiest month per day and Friday the busiest weekday; a Saturday or Sunday recorded about 91% of a weekday’s births. Within one year each date has one weekday, so every table here names it. The multi-year ranking for Metropolitan France is on its own page.

Every day of 1980 in Metropolitan France: recorded births

Every day of 1980 in calendar order as one line, with the busiest and quietest dates marked and the year’s average day drawn across it.

The regular dips are weekends. The deepest dips are fixed holidays.

The busiest dates of 1980

Dates of 1980 with the most recorded births in Metropolitan France
Date	Weekday	Births	% of an average day
May 20	Tuesday	2,626	120.1
May 8	Thursday	2,614	119.5
May 22	Thursday	2,558	117.0
May 13	Tuesday	2,550	116.6
July 4	Friday	2,544	116.3
May 7	Wednesday	2,540	116.2
May 14	Wednesday	2,537	116.0
May 9	Friday	2,528	115.6
May 16	Friday	2,500	114.3
May 19	Monday	2,498	114.2

The quietest dates of 1980

Dates of 1980 with the fewest recorded births in Metropolitan France
Date	Weekday	Births	% of an average day
January 1	Tuesday	1,682	76.9
November 2	Sunday	1,693	77.4
December 25	Thursday	1,711	78.2
February 3	Sunday	1,731	79.2
January 20	Sunday	1,755	80.3
January 6	Sunday	1,791	81.9
October 19	Sunday	1,797	82.2
November 23	Sunday	1,803	82.4
November 30	Sunday	1,805	82.5
December 14	Sunday	1,808	82.7

1980 by weekday and by month

Metropolitan France, 1980: births per day by weekday

Seven columns, Monday to Sunday, average recorded births per day in 1980.

Metropolitan France, 1980: births per day by weekday
Weekday	Days	Births per day
Friday	52	2,272
Tuesday	53	2,269
Thursday	52	2,266
Wednesday	53	2,230
Monday	52	2,194
Saturday	52	2,143
Sunday	52	1,932

Metropolitan France, 1980: births per day by month
Month	Births	Births per day
May	73,984	2,387
July	71,028	2,291
April	68,442	2,281
June	67,896	2,263
September	65,719	2,191
August	67,362	2,173
October	67,243	2,169
March	67,017	2,162
November	62,887	2,096
December	64,906	2,094
February	60,354	2,081
January	63,538	2,050

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Sources, method and limits

Source: INSEE, T79jnais, daily births in metropolitan France, open licence of the publisher. Metropolitan France only; the whole-of-France detail file behind the 2025 page is a separate series. 800,376 births over 366 days; the weekday of each day is taken from the calendar date. One year, one country, one series.

Every figure above comes from the administrative records named here, at the granularity those records publish: a day, a month or a year. Coverage and definitions differ between countries and eras, so two sources are combined only where their documentation states the windows are separate, and the page where that happens says so.

Full method, leap-day treatment and definitions.

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