What was the most common birthday in Metropolitan France in 1977?

Name: Metropolitan France births by day, 1977
Creator: INSEE
Published: 2026-09-15

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

May 17most births in 1977a Tuesday, 2,539 births
January 9fewest births in 1977a Sunday, 1,606 births
Maybusiest month per day2,311 births per day
92%weekend levelSaturday and Sunday against a weekday, per day; Tuesday busiest

In 1977, Metropolitan France recorded 744,744 births over 365 days, 2,040 on an average day. The busiest single date was May 17, a Tuesday, with 2,539 births; the quietest was January 9, a Sunday, with 1,606. May was the busiest month per day and Tuesday the busiest weekday; a Saturday or Sunday recorded about 92% 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 1977 in Metropolitan France: recorded births

Every day of 1977 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 1977

Dates of 1977 with the most recorded births in Metropolitan France
Date	Weekday	Births	% of an average day
May 17	Tuesday	2,539	124.4
May 24	Tuesday	2,475	121.3
May 18	Wednesday	2,472	121.2
May 12	Thursday	2,466	120.9
May 10	Tuesday	2,426	118.9
May 11	Wednesday	2,416	118.4
May 25	Wednesday	2,416	118.4
May 13	Friday	2,412	118.2
May 9	Monday	2,410	118.1
June 13	Monday	2,396	117.4

The quietest dates of 1977

Dates of 1977 with the fewest recorded births in Metropolitan France
Date	Weekday	Births	% of an average day
January 9	Sunday	1,606	78.7
January 1	Saturday	1,618	79.3
December 25	Sunday	1,660	81.4
November 13	Sunday	1,665	81.6
January 30	Sunday	1,670	81.8
December 4	Sunday	1,674	82.0
November 20	Sunday	1,686	82.6
September 4	Sunday	1,699	83.3
November 27	Sunday	1,701	83.4
October 23	Sunday	1,706	83.6

1977 by weekday and by month

Metropolitan France, 1977: births per day by weekday

Seven columns, Monday to Sunday, average recorded births per day in 1977.

Metropolitan France, 1977: births per day by weekday
Weekday	Days	Births per day
Tuesday	52	2,114
Friday	52	2,101
Wednesday	52	2,083
Thursday	52	2,083
Monday	52	2,054
Saturday	53	2,004
Sunday	52	1,844

Metropolitan France, 1977: births per day by month
Month	Births	Births per day
May	71,627	2,311
June	66,698	2,223
July	66,068	2,131
April	63,785	2,126
August	63,412	2,046
March	62,561	2,018
September	60,297	2,010
October	61,441	1,982
February	54,481	1,946
December	58,995	1,903
November	56,883	1,896
January	58,496	1,887

Keep going

Check how rare your own birthday is →

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. 744,744 births over 365 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.

Want the data? Ask for it.