Reykjavik Marathon

Reykjavik, Iceland · August 21, 2027
partly-cloudy-day51°·54° high·Breezy·Rain possible
9
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Reykjavik Marathon race day weather

partly-cloudy-day
51°at start
56° high
Breezy
Rain possible
Your goal
0:00:00

Cool conditions, adjust for wind

Runners will face temperatures starting at 51°F and climbing to 55°F, with humidity at 74%. A light tailwind will assist during the first two miles, but headwinds will challenge runners from miles 4-5, 7-9, and 15-17. Given the humidity, pacing adjustments are advisable, especially in exposed segments; staying hydrated will be crucial throughout the race.

Race day forecast available in 268 days
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Pace Calculator

26.2mi
0:00:00
HH:MM:SS
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Reykjavik Marathon route and elevation

The Reykjavik Marathon course has about 727 ft (222 m) of climbing and 723 ft (220 m) of descent, and finishes near the elevation it starts. It is hillier than 58% of the marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 9, with 61 ft (19 m) of climbing and a 1.1% average grade.

Biggest climbs

  • Miles 8.5 to 9.8: climbs about 80 ft (25 m).
  • Miles 15 to 16.2: climbs about 55 ft (17 m).
  • Miles 19.5 to 21.3: climbs about 90 ft (27 m).

What the hills cost

  • 3:30 on a flat course is about 3:31 here (1 minute slower).
  • 4:00 on a flat course is about 4:01 here (1 minute slower).
  • 4:30 on a flat course is about 4:32 here (2 minutes 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 Reykjavik Marathon mile splits at even effort for three finish times, with each mile's climb and descent
MileClimbDescent3:304:004:30
124 ft22 ft7:589:0710:15
236 ft14 ft8:099:1810:28
326 ft44 ft7:549:0110:09
417 ft21 ft7:579:0610:14
512 ft15 ft7:579:0510:13
626 ft6 ft8:079:1710:27
750 ft64 ft7:559:0310:10
820 ft20 ft7:589:0610:15
961 ft4 ft8:279:3910:51
1041 ft40 ft7:589:0710:16
1131 ft65 ft7:508:5710:04
1240 ft39 ft7:599:0710:15
1349 ft26 ft8:099:1910:29
1436 ft47 ft7:559:0310:11
1523 ft60 ft7:508:5710:04
1663 ft22 ft8:189:3010:41
1715 ft33 ft7:549:0110:09
1816 ft48 ft7:508:5710:04
1943 ft46 ft7:579:0610:14
2059 ft30 ft8:129:2210:33
2166 ft21 ft8:219:3210:43
2220 ft48 ft7:518:5910:06
2350 ft42 ft8:029:1110:20
2424 ft54 ft7:518:5810:05
2510 ft21 ft7:559:0310:11
2614 ft24 ft7:569:0310:12
Last 0.211 ft1 ft1:502:062:21

Explore the Reykjavik Marathon course with the weather and your pace along the route, or compare it with other races.

Race Plan

Get your personalized Reykjavik Marathon 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 Reykjavik Marathon

The Reykjavik Marathon offers runners a captivating journey through Iceland's capital, combining urban charm with natural beauty. The 42.195 km course is relatively flat, featuring an elevation gain of 174 meters, and includes sections along the coastline with stunning views of the ocean and surrounding mountains, including the majestic Esjan and Snæfellsjökull glacier. The race begins and ends in Reykjavik's vibrant city center, near The Pond, providing a dynamic atmosphere from start to finish. Along the way, participants encounter iconic landmarks such as the Harpa Concert Hall, the Sun Voyager sculpture, and the historic Seltjarnarnes church. The event is held in conjunction with Reykjavik's Cultural Night Festival, adding to the festive ambiance and community support throughout the race.

Race weekend

Saturday, August 21
8:45 AMMarathon (26.2 mi)
Relay (26.2 mi)
Half Marathon (13.1 mi)
10K (6.2 mi)

Reykjavik Marathon FAQ

When is the 2027 Reykjavik Marathon?

The 2027 Reykjavik Marathon will be held on Saturday August 21, 2027.

Is the Reykjavik Marathon a Boston Marathon Qualifier?

Yes, the Reykjavik Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2027 Reykjavik Marathon?

The forecast calls for a high of 56°F and a low of 47°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 Reykjavik Marathon?

The Reykjavik Marathon course has about 727 ft (222 m) of climbing and 723 ft (220 m) of descent, and finishes near the elevation it starts. It is hillier than 58% of the marathon courses racecast.io has mapped, measured by what the hills cost in time.

Is the Reykjavik Marathon hilly?

Moderately. It has about 28 ft (8 m) of climbing per mile. The hardest mile is mile 9, with 61 ft (19 m) of climbing and a 1.1% average grade. 4:00 on a flat course is about 4:01 here (1 minute slower).

What is the weather usually like for the Reykjavik Marathon?

Over the 10 years racecast.io has race-day weather for (2015 to 2026), it averaged 51°F at the start and 55°F by a typical finish. Rain fell during race hours in 5 of those years.

What was the hottest Reykjavik Marathon?

Of the 10 years on record, 2016 was the warmest, reaching 60°F during race hours. The coldest start was 2024, at 46°F.

What was the windiest Reykjavik Marathon?

Of the 10 years on record, 2022 was the windiest, with wind averaging 20 mph during race hours. The calmest was 2023, at 4 mph.

Reykjavik Marathon weather history

Based on 10 years of data
Avg Temp
53°F
L:51° H:55°
RunScore
9
Conditions
Rain Freq
50%
5 of 10 yrs
Wind10mph
Dew45°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
rain
52°/54°Light
8
2025
partly-cloudy-day
55°/59°-
7
2024
partly-cloudy-day
45°/49°-
10
2023
partly-cloudy-day
53°/57°Light
9
2022
partly-cloudy-day
46°/48°Light
8
2019
partly-cloudy-day
52°/54°Light
10
2018
partly-cloudy-day
48°/53°-
9
2017
clear-day
46°/55°-
10
2016
partly-cloudy-day
54°/60°-
8
2015
partly-cloudy-day
54°/57°Light
9