London MarathonLondon, United Kingdom🇬🇧
About London Marathon 2027
London Marathon 2027 is a road running race held on Sun, Apr 25, 2027 in London, United Kingdom.
Registration is taken on the official site; no deadline has been announced. Dates, registration windows and fees on this page are refreshed every morning by scanning federation, timing and organiser sites; registration always happens on the official race site.
Someone running 30 km a week needs 14 weeks, about 3 months, to prepare for the 42K course of London Marathon 2027; the latest start is Sun, Jan 17, 2027.
Courses
| Course | Distance |
|---|---|
| 42K | 42 km |
Single course: 42K.
What the weather is usually like here
- Over the last 5 years this week typically ran 5°C to 14°C here, with a high of 24°C and a low of 1°C.
- 31% of those days saw rain. A real forecast lands about two weeks out and will appear here then.
- Typical daily maximum wind was 19 km/h (a light breeze), with 32 km/h the highest value in the sample.
- Sunrise 05:43, sunset 20:14.
The race is more than two weeks out, so these are averages of recent years for the same week, not a forecast. A real forecast appears here closer to the day.
Calculators for this race
Registration
- StandardFri, Apr 24, 2026Registration open
Data sources: World Marathon Majors, official site (tcslondonmarathon.com) · Last checked:
Tune-up races
Prep races you can run in the weeks before this one, ahead of your taper.
Similar races
Frequently asked questions
(6)
What is London Marathon?
London Marathon: Sun, Apr 25, 2027, London, United Kingdom. Date, courses and registration details for this Road Running race.
When is London Marathon 2027?
London Marathon takes place on Sun, Apr 25, 2027.
Where does London Marathon take place?
London Marathon takes place in London, United Kingdom.
What are the courses and distances of London Marathon 2027?
London Marathon offers 1 course: 42K (42 km).
What is the official website of London Marathon?
Official website: https://www.tcslondonmarathon.com/
What is the weather like at London Marathon 2027?
Over the last 5 years the same week here measured 5°C to 14°C, with a high of 24°C, a low of 1°C and rain on 31% of days. A real forecast lands about two weeks out.