We are in the dying days of 2021 and it’s likely the busiest cycling days of the year are behind us. With data available on Ireland’s Open Data Portal up to November, what were the busiest cycling days recorded this year?

The most cyclists recorded in one day (6,330) was on Sunday, May 30th at Pebble Beach on the Clontarf to Sutton cycle route. The same day was also the busiest for both James Larkin Road which is located near St. Annes Park (also on the Clontarf to Sutton cycle route) and for the People’s Park in Dún Laoghaire.

Not a single counter along a commuting corridor featured on the list (i.e. Grove Road or North Strand in Dublin City Council or Clonskeagh, N11 or Rock Road in Dún Laoghaire-Rathdown). This can hardly be considered surprising given that commuting was practically non-existent this year in comparison to pre-COVID years. For comparison, based on the counters that were deployed in 2019, the busiest cycling day of that year was Grove Road on September 18th with 5,301 cyclists counted.

May 17th (St. Patrick’s Day) was another notable busy day across Dublin for cycling.

As a general rule, weekend cycling on the Dún Laoghaire-Rathdown coastal mobility route accounted for most of the busiest cycling days of the year (14 of the top 25 days). All of the top 25 daily cycling counts occurred on segregated cycling routes along the coast either north or south of the Liffey.


  • Only Dublin City Council and Dún Laoghaire-Rathdown have cycling count datasets available on the Open Data Portal. Fingal and South Dublin County Council also have cycling counters deployed but these datasets are not currently available.
  • Only partial data was available for the two Clontarf counters.