Dublin Half Marathon
Dublin, Ireland · Monday 21 September 2026
The Dublin Half Marathon is a must-do race for those looking to experience Ireland’s capital in all its charm. This race offers a flat and fast course, starting and finishing in Phoenix Park, one of the largest urban parks in Europe. Along the way, runners will be treated to beautiful views of Dublin’s Georgian architecture, historic landmarks, and lush greenery. The course also weaves through some of the city’s cultural hotspots, including St.
Difficulty Calculator
h
:m
:s
Adjusted Time
1:43:37
Time difference: -1.4 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain107m
Elevation High57m
Elevation Low16m
Weather Forecast
High14°C
Low8°C
Chance of Rain88%
How hard is Dublin Half Marathon?
Moderateharder than 23% of half marathons
Flattest / easiestHardest
On our difficulty model, Dublin Half Marathon plays about even with an average road half marathon for a 1:30 runner. It ranks #345 hardest of 450 half marathons we analyse, and #8 of 9 in Ireland. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Dublin Half Marathon?
Estimated finish times on this course versus the same effort on an average road half marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Dublin Half Marathon | Difference |
|---|---|---|
| 1:30:00 | 1:28:30 | −01:30 |
| 1:45:00 | 1:43:37 | −01:23 |
| 2:00:00 | 1:58:45 | −01:15 |
| 2:15:00 | 2:13:54 | −01:06 |
| 2:30:00 | 2:29:03 | −00:57 |
| 2:45:00 | 2:44:13 | −00:47 |
| 3:00:00 | 2:59:23 | −00:37 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Dublin Half Marathon 2026 Course Analysis
Dublin Half Marathon is a half marathon held in Dublin, Ireland. It is scheduled for Monday 21 September 2026. The course is run on road surface with 107m of total climbing, with its high point near 57m above sea level. For registration and full race details, visit the official Dublin Half Marathon website.
Elevation Profile
With 107m of total climbing, this is a gently undulating course. The elevation changes are manageable for most runners and shouldn't greatly affect your pacing.
Expected Race Day Weather
Based on historical weather data for September, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 8°C to 14°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a high chance of rain (88%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.
Surface Type: Road
Dublin Half Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Dublin Half Marathon against other half marathons to find the right race for your goals.
Half marathons of similar difficulty
If Dublin Half Marathon fits your goal, these courses play out about the same on our difficulty model.
Other Half Marathons in Ireland
Dingle Full and Half Marathon
Dingle, Ireland
Road490m gainSept 2026
Charleville International Half-marathon
Charleville, Ireland
Road71m gainSept 2026
Great Limerick Run Half Marathon
Limerick, Ireland
Road124m gainMay 2027
Cork City Half Marathon
Cork, Ireland
Road83m gainJune 2027
Half on the Head
Ballyheigue, Ireland
Road222m gainJune 2027