London Marathon weather: forecast for 2021 running spectacle - cloudy and breezy conditions likely for race

Runners can expect a chill in the air for Sunday’s race after the Met Office issued its weekend weather forecast for London

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With the London Marathon just days away, thousands of runners are making their final preparations for race day.

Along with plotting their route to the start line, stretching and pre-race routines, entrants for Sunday’s race will also have one eye on the weather forecast.

Conditions can make or break hopes of setting new personal best times on the iconic streets of England’s capital, as the London marathon returns in 2021.

Here’s all you need to know about the weather forecast for Sunday’s 41st London Marathon and what type of clothing might be best for the ever-changing conditions...

What is the forecast for the London Marathon 2021?

It is likely that light rain showers and a moderate breeze will be the order of the day in London’s capital.

The chance of precipitation will decrease as the day wears on with the highest likelihood of rain being at 6am.

This year’s race will have a staggered start time between 9.30am and 11am and by this point, the chance of rain will have dropped from 62% at 6am to 40% at 9.30am.

Runners in the 2019 marathon. This year there is a small chance of rain at the start of the race.Runners in the 2019 marathon. This year there is a small chance of rain at the start of the race.
Runners in the 2019 marathon. This year there is a small chance of rain at the start of the race.

By the end of the race at around 1am, this likelihood has dropped even further to 30%.

A gentle breeze from the South West will also be present, hopefully aiding the runners during the 26.2 mile route.

The temperature is set to be at 12℃ for the start of the race and will slowly increase as the day continues, reaching around 15℃ by 2pm.

For more information on the weather conditions for the 2021 London Marathon, click here to keep up with the latest changes from the Met Office.

What should runners wear for the London Marathon?

Due to the chance of rain, the Virgin Money London Marathon recommends bringing a hat and a pair of gloves in order to help prevent heat loss.

Chilly hands can be a very uncomfortable distraction and can affect your overall body temperature. If the conditions warm up, they can be removed and stashed away easily.

Additionally, some lightweight cover-up pieces, such as a long-sleeved T-shirt, are recommended due to the mild temperatures.

It is also important to have already worn and washed the clothes you are likely to wear for the big day before the event so as to ensure you are comfortable in them.

The London Marathon takes place Sunday 3 October with the first start time at 9.30am. It will be available to watch on BBC 1 from 8.30am.

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