What was the most common birthday in Metropolitan France in 2009?

Name: Metropolitan France births by day, 2009
Creator: INSEE
Published: 2026-09-15

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

September 22most births in 2009a Tuesday, 2,525 births
January 1fewest births in 2009a Thursday, 1,627 births
Julybusiest month per day2,287 births per day
81%weekend levelSaturday and Sunday against a weekday, per day; Tuesday busiest

In 2009, Metropolitan France recorded 793,420 births over 365 days, 2,174 on an average day. The busiest single date was September 22, a Tuesday, with 2,525 births; the quietest was January 1, a Thursday, with 1,627. July was the busiest month per day and Tuesday the busiest weekday; a Saturday or Sunday recorded about 81% 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 2009 in Metropolitan France: recorded births

Every day of 2009 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 2009

Dates of 2009 with the most recorded births in Metropolitan France
Date	Weekday	Births	% of an average day
September 22	Tuesday	2,525	116.2
July 16	Thursday	2,524	116.1
July 29	Wednesday	2,524	116.1
July 3	Friday	2,521	116.0
December 17	Thursday	2,515	115.7
December 16	Wednesday	2,513	115.6
August 7	Friday	2,503	115.1
July 17	Friday	2,494	114.7
October 1	Thursday	2,486	114.4
July 22	Wednesday	2,478	114.0

The quietest dates of 2009

Dates of 2009 with the fewest recorded births in Metropolitan France
Date	Weekday	Births	% of an average day
January 1	Thursday	1,627	74.8
March 8	Sunday	1,670	76.8
June 7	Sunday	1,672	76.9
March 15	Sunday	1,678	77.2
February 22	Sunday	1,686	77.6
February 15	Sunday	1,686	77.6
October 11	Sunday	1,698	78.1
December 25	Friday	1,723	79.3
February 21	Saturday	1,729	79.5
April 5	Sunday	1,733	79.7

2009 by weekday and by month

Metropolitan France, 2009: births per day by weekday

Seven columns, Monday to Sunday, average recorded births per day in 2009.

Metropolitan France, 2009: births per day by weekday
Weekday	Days	Births per day
Tuesday	52	2,333
Wednesday	52	2,304
Thursday	53	2,297
Friday	52	2,293
Monday	52	2,275
Saturday	52	1,905
Sunday	52	1,806

Metropolitan France, 2009: births per day by month
Month	Births	Births per day
July	70,900	2,287
September	67,988	2,266
August	68,311	2,204
December	68,307	2,203
October	67,903	2,190
June	65,184	2,173
November	65,117	2,171
January	66,436	2,143
May	66,099	2,132
April	63,560	2,119
February	58,890	2,103
March	64,725	2,088

Keep going

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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. 793,420 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.

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