The course

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The course is largely flat and is a single lap, starting and finishing close to the City Centre. The start will be in Fitzwilliam Street Upper and the finish will be in Merrion Square North. Conditions for marathon running are ideal.

The Irish climate is influenced by the prevailing light South Westerly winds of the Gulf Stream. The average temperatures for October are around 12 - 14°C (53 - 57°F). Dublin has only about 30 inches of rain annually. Ideal for running.

Dublin Marathon Major Traffic Diversions

Microsoft Word document Dublin Bus diversions


Traffic travelling to the city centre from the M1 shall be diverted down Upper Gardner Street when it reaches Dorset Street from 8:30am to 9:45am.


Traffic travelling on the N2 towards the city centre is advised to use the M50/N4 to access city centre due to traffic restrictions in the Phibsboro area from 8:30am to 10:30am.


Traffic travelling on the N3 will be diverted away from the North Circular road. Traffic using the N3 intending to travel to the city centre are advised to use the M50/N4 up to from 8:45am to 10:30am.


The N4 is unaffected by the Marathon and is open all day. However, traffic using the N4 to access the city centre will experience delays on the North Quays at O’Connell Bridge between 8.45am and 9:45am approximately as the Marathon crosses the Liffey at this point.


Traffic travelling the N7 is advised to use the M50/N4 to access the city centre instead as there are severe traffic restrictions in the Inchicore area and at Dolphins Barn from 9:00am to 12:30pm.


The N11 is unaffected by the Marathon, except for the slip roads onto and off the Belfield flyover as the runners go from Fosters avenue to Nutley Lane.

Rock Road

Traffic accessing the city centre will be diverted at the Merrion Gates or can divert up onto the N11.

South Quays / North Quays

The race will cross the Liffey at O’Connell Bridge. Traffic wishing to use the south Quays in this area will experience delays from 8.45am to 9:45am.


Bus access only, other traffic will be diverted away from Tempelogue Road between 9.30am to 13:30pm.

General Information for motorists

Traffic coming from the North or West of the city travelling to the RDS is advised to use the East Link toll Bridge and Strand road or to use the M50/N11. Traffic coming from the south is advised to use the N11 and Aylesbury road.

There are severe traffic restrictions in the Merrion Square, Nassau Street, and Stephens Green areas of the city and their environs.