New data from the Office for National Statistics (ONS) has revealed that September 26 is the most common birthday in England and Wales, based on an analysis of live births from 1995 to 2014. The date falls 39 weeks and two days after Christmas Day, suggesting a peak in conceptions around the festive period.
The ONS analysed birth data over two decades to identify trends in the most and least popular birth dates. The interactive graphic ranks each day of the year by average number of births, with September 26 taking the top spot. February 29 had the fewest births, but as a leap day occurring only every four years, it was excluded from the main ranking.
According to the ONS, the late September birth peak may partly be due to couples planning to have children at the start of the school year. Conversely, late December sees fewer births, likely because hospitals typically deliver only natural births and perform emergency caesareans during the bank holiday period.
The data also shows that Christmas Day, Boxing Day, and New Year's Day are among the least common birthdays, making those born on these dates exceptional. The findings highlight how seasonal factors and holiday schedules influence birth patterns in the UK.
