What was the most common birthday in England & Wales in 2021?

Name: England and Wales births by day, 2021
Creator: Office for National Statistics
Published: 2026-09-15

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

September 23most births in 2021a Thursday, 2,055 births
December 26fewest births in 2021a Sunday, 1,139 births
Septemberbusiest month per day1,843 births per day
81%weekend levelSaturday and Sunday against a weekday, per day; Thursday busiest

In 2021, England and Wales recorded 624,828 births over 365 days, 1,712 on an average day. The busiest single date was September 23, a Thursday, with 2,055 births; the quietest was December 26, a Sunday, with 1,139. September was the busiest month per day and Thursday 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 England & Wales is on its own page.

Every day of 2021 in England & Wales: recorded births

Every day of 2021 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 2021

Dates of 2021 with the most recorded births in England & Wales
Date	Weekday	Births	% of an average day
September 23	Thursday	2,055	120.0
October 7	Thursday	2,011	117.5
September 17	Friday	2,002	116.9
November 4	Thursday	1,989	116.2
September 20	Monday	1,986	116.0
September 9	Thursday	1,979	115.6
November 10	Wednesday	1,970	115.1
September 28	Tuesday	1,969	115.0
September 10	Friday	1,968	115.0
September 15	Wednesday	1,968	115.0

The quietest dates of 2021

Dates of 2021 with the fewest recorded births in England & Wales
Date	Weekday	Births	% of an average day
December 26	Sunday	1,139	66.5
December 25	Saturday	1,235	72.1
December 27	Monday	1,290	75.4
January 2	Saturday	1,310	76.5
January 3	Sunday	1,319	77.1
January 30	Saturday	1,322	77.2
January 17	Sunday	1,328	77.6
January 24	Sunday	1,338	78.2
March 28	Sunday	1,343	78.5
January 1	Friday	1,346	78.6

2021 by weekday and by month

England & Wales, 2021: births per day by weekday

Seven columns, Monday to Sunday, average recorded births per day in 2021.

England & Wales, 2021: births per day by weekday
Weekday	Days	Births per day
Thursday	52	1,849
Wednesday	52	1,840
Tuesday	52	1,806
Friday	53	1,800
Monday	52	1,748
Saturday	52	1,475
Sunday	52	1,463

England & Wales, 2021: births per day by month
Month	Births	Births per day
September	55,296	1,843
October	55,705	1,797
July	55,385	1,787
August	54,287	1,751
November	52,498	1,750
June	52,204	1,740
March	52,481	1,693
April	50,278	1,676
December	51,365	1,657
May	51,329	1,656
February	46,258	1,652
January	47,742	1,540

Keep going

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Sources, method and limits

Source: Office for National Statistics, daily live births by date of occurrence, Table 12 of the births release of September 8, 2026, Open Government Licence v3.0. Births occurring in England and Wales, including to mothers resident elsewhere, as registered by the release date. 624,828 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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