Achill Island Half Marathon
Achill Island, Ireland · Monday 5 July 2027
Few races can boast a setting as wild and dramatic as the Achill Island Half Marathon. Located on Ireland’s largest island, this race showcases the rugged beauty of the Atlantic coastline, with sweeping views of cliffs, beaches, and open moorland. The course, while breathtakingly scenic, is also notoriously tough, featuring rolling hills and the potential for strong coastal winds.
Difficulty Calculator
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:m
:s
Adjusted Time
1:49:41
Time difference: +4.7 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain229m
Elevation High91m
Elevation Low2m
Weather Forecast
High15°C
Low14°C
Chance of Rain65%
How hard is Achill Island Half Marathon?
Moderateharder than 67% of half marathons
Flattest / easiestHardest
On our difficulty model, Achill Island Half Marathon plays about 5 minutes slower than an average road half marathon for a 1:30 runner. It ranks #147 hardest of 450 half marathons we analyse, and #3 of 9 in Ireland. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Achill Island 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 Achill Island Half Marathon | Difference |
|---|---|---|
| 1:30:00 | 1:33:17 | +03:17 |
| 1:45:00 | 1:49:41 | +04:41 |
| 2:00:00 | 2:06:13 | +06:13 |
| 2:15:00 | 2:22:50 | +07:50 |
| 2:30:00 | 2:39:34 | +09:34 |
| 2:45:00 | 2:56:23 | +11:23 |
| 3:00:00 | 3:13:18 | +13:18 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Achill Island Half Marathon 2027 Course Analysis
Achill Island Half Marathon is a half marathon held in Achill Island, Ireland. It is scheduled for Monday 5 July 2027. The course is run on road surface with 229m of total climbing, with its high point near 91m above sea level. For registration and full race details, visit the official Achill Island Half Marathon website.
Elevation Profile
With 229m 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 July, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 14°C to 15°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 (65%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.
Surface Type: Road
Achill Island 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 Achill Island Half Marathon against other half marathons to find the right race for your goals.
Half marathons of similar difficulty
If Achill Island Half Marathon fits your goal, these courses play out about the same on our difficulty model.
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