Great Limerick Run

Limerick, Ireland · May 2, 2027·
partly-cloudy-day49°·55° high·Breezy·Rain possible
9
Register

Great Limerick Run race day weather

partly-cloudy-day
49°at start
56° high
Breezy
Rain possible
Your goal
0:00:00

Cool start, mild finish

Runners will face a temperature rise from 49°F at the start to 55°F by the finish, with humidity at 74%. A light SSE wind at 9 mph will shift to a headwind during key segments, notably Mile 15 and Mile 27. To optimize performance, runners should adjust their pace conservatively in the early miles and stay hydrated, especially during the warmer latter stages.

Race day forecast available in 159 days
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9

Pace Calculator

26.2mi
0:00:00
HH:MM:SS
Pace
—

Enter a finish time to see what race day does to it.

Common Goals:

Get forecast alerts for Great Limerick Run

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Great Limerick Run route and elevation

The Great Limerick Run course has about 642 ft (196 m) of climbing. It is flatter than 61% of the marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 20, with 58 ft (18 m) of climbing.

Biggest climbs

  • Miles 12.6 to 13.6: climbs about 75 ft (22 m).
  • Miles 14.9 to 15.4: climbs about 55 ft (17 m).
  • Miles 19.2 to 19.7: climbs about 60 ft (18 m).

What the hills cost

  • 3:30 on a flat course is about 3:30:40 here (40 seconds slower).
  • 4:00 on a flat course is about 4:00:45 here (45 seconds slower).
  • 4:30 on a flat course is about 4:30:50 here (50 seconds slower).

Hills only, priced mile by mile on the course map. The pace calculator above adds the race-day weather.

Even-effort splits for a 3:30, 4:00 or 4:30 finish
The Great Limerick Run mile splits at even effort for three finish times, with each mile's climb and descent
MileClimbDescent3:304:004:30
113 ft41 ft7:528:5910:07
261 ft41 ft8:099:1910:29
312 ft40 ft7:529:0010:07
435 ft23 ft8:059:1510:24
549 ft36 ft8:069:1510:25
653 ft48 ft8:029:1010:19
726 ft51 ft7:539:0110:08
830 ft22 ft8:039:1210:21
938 ft37 ft8:009:0810:16
1014 ft38 ft7:539:0110:09
1135 ft39 ft7:589:0610:15
1219 ft12 ft8:029:1110:19
1346 ft24 ft8:109:2010:30
1442 ft37 ft8:029:1110:20
1517 ft45 ft7:529:0010:08
1655 ft24 ft8:159:2610:36
1734 ft24 ft8:059:1310:23
1845 ft45 ft7:599:0810:16
196 ft58 ft7:478:5410:00
2058 ft30 ft8:139:2310:34
2116 ft54 ft7:508:5710:05
2232 ft22 ft8:049:1310:22
2330 ft21 ft8:049:1310:21
2426 ft53 ft7:529:0010:08
2564 ft37 ft8:139:2310:33
2625 ft43 ft7:549:0310:11
Last 0.23 ft6 ft1:451:592:14

Explore the Great Limerick Run course with the weather and your pace along the route, or compare it with other races.

Race Plan

Get your personalized Great Limerick Run race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

About the Great Limerick Run

The Regeneron Great Limerick Run is the biggest mass participation sporting event outside Dublin. Every year the City of Limerick comes to a stand still as thousands of runners take over and run the Citys streets! This event has 3 seperate distance options: Full Marathon, Half Marathon & 6 Mile! Source

Race weekend

Saturday, May 1
2:30 PMChildren's Fun Run (0.6 mi)
Sunday, May 2
9:00 AMMarathon (26.2 mi)
9:00 AMRelay (26.2 mi)
11:00 AMHalf Marathon (13.1 mi)1:30 PM6 Mile (6.0 mi)

Great Limerick Run FAQ

When is the 2027 Great Limerick Run?

The 2027 Great Limerick Run will be held on Sunday May 2, 2027.

Is the Great Limerick Run a Boston Marathon Qualifier?

Yes, the Great Limerick Run is an official Boston Marathon qualifier.

What is the time limit for the Great Limerick Run?

The time limit for the Great Limerick Run is 7 hours.

What will the weather be like for the 2027 Great Limerick Run?

The forecast calls for a high of 57°F and a low of 44°F with a 13% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

What is the elevation gain of the Great Limerick Run?

The Great Limerick Run course has about 642 ft (196 m) of climbing. It is flatter than 61% of the marathon courses racecast.io has mapped, measured by what the hills cost in time.

Is the Great Limerick Run hilly?

Moderately. It has about 24 ft (7 m) of climbing per mile. The hardest mile is mile 20, with 58 ft (18 m) of climbing. 4:00 on a flat course is about 4:00:45 here (45 seconds slower).

What is the weather usually like for the Great Limerick Run?

Over the 12 years racecast.io has race-day weather for (2013 to 2026), it averaged 52°F at the start and 58°F by a typical finish. Rain fell during race hours in 5 of those years.

What was the hottest Great Limerick Run?

Of the 12 years on record, 2018 was the warmest, reaching 63°F during race hours. The coldest start was 2019, at 44°F.

What was the windiest Great Limerick Run?

Of the 12 years on record, 2017 was the windiest, with wind averaging 21 mph during race hours. The calmest was 2024, at 4 mph.

Great Limerick Run weather history

Based on 12 years of data
Avg Temp
55°F
L:52° H:58°
RunScore
8
Conditions
Rain Freq
42%
5 of 12 yrs
Wind11mph
Dew47°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
52°/59°Light
8
2025
cloudy
48°/55°-
9
2024
partly-cloudy-day
50°/61°-
8
2023
partly-cloudy-day
55°/59°-
7
2022
cloudy
55°/58°Light
7
2019
clear-day
44°/55°-
10
2018
partly-cloudy-day
47°/63°-
8
2017
partly-cloudy-day
51°/55°Light
8
2016
cloudy
52°/56°Light
8
2015
partly-cloudy-day
55°/59°Light
7
2014
cloudy
55°/57°-
8
2013
partly-cloudy-day
57°/59°-
8