What was the most common birthday in Metropolitan France in 1998?

Name: Metropolitan France births by day, 1998
Creator: INSEE
Published: 2026-09-15

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

July 21most births in 1998a Tuesday, 2,428 births
January 1fewest births in 1998a Thursday, 1,377 births
Septemberbusiest month per day2,124 births per day
76%weekend levelSaturday and Sunday against a weekday, per day; Tuesday busiest

In 1998, Metropolitan France recorded 738,080 births over 365 days, 2,022 on an average day. The busiest single date was July 21, a Tuesday, with 2,428 births; the quietest was January 1, a Thursday, with 1,377. September was the busiest month per day and Tuesday the busiest weekday; a Saturday or Sunday recorded about 76% 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 1998 in Metropolitan France: recorded births

Every day of 1998 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 1998

Dates of 1998 with the most recorded births in Metropolitan France
Date	Weekday	Births	% of an average day
July 21	Tuesday	2,428	120.1
July 9	Thursday	2,420	119.7
August 11	Tuesday	2,415	119.4
May 5	Tuesday	2,409	119.1
September 22	Tuesday	2,396	118.5
April 30	Thursday	2,387	118.0
May 12	Tuesday	2,383	117.8
September 28	Monday	2,379	117.6
September 23	Wednesday	2,376	117.5
August 5	Wednesday	2,373	117.4

The quietest dates of 1998

Dates of 1998 with the fewest recorded births in Metropolitan France
Date	Weekday	Births	% of an average day
January 1	Thursday	1,377	68.1
June 7	Sunday	1,428	70.6
December 25	Friday	1,433	70.9
March 22	Sunday	1,459	72.2
February 22	Sunday	1,464	72.4
March 1	Sunday	1,480	73.2
January 11	Sunday	1,481	73.2
August 23	Sunday	1,484	73.4
November 29	Sunday	1,486	73.5
March 29	Sunday	1,490	73.7

1998 by weekday and by month

Metropolitan France, 1998: births per day by weekday

Seven columns, Monday to Sunday, average recorded births per day in 1998.

Metropolitan France, 1998: births per day by weekday
Weekday	Days	Births per day
Tuesday	52	2,224
Wednesday	52	2,165
Thursday	53	2,161
Friday	52	2,146
Monday	52	2,141
Saturday	52	1,755
Sunday	52	1,560

Metropolitan France, 1998: births per day by month
Month	Births	Births per day
September	63,729	2,124
July	65,701	2,119
April	62,217	2,074
August	63,321	2,043
June	60,742	2,025
October	62,236	2,008
May	61,716	1,991
December	61,647	1,989
November	59,540	1,985
March	61,282	1,977
January	60,941	1,966
February	55,008	1,965

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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. 738,080 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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