Great North Run 2026 Weather: What to Expect on Sunday 13 September

Around 57,000 people will run from Newcastle to the South Shields seafront on Sunday 13 September 2026, and a good share of them will spend the previous week refreshing a forecast that cannot yet tell them anything useful. The Great North Run is three weeks and change away as this is published. Here is what the climate record says about that weekend on Tyneside, and when the forecast actually becomes worth reading.

The short version: mid-September in the North East is mild rather than warm, wetter than August on paper but not dramatically so, and the wind matters more than the temperature because of where the race finishes.

The Route, and Why It Changes the Weather Question

The race starts on the A167 by Newcastle's central motorway, crosses the Tyne Bridge into Gateshead, runs out along the A184 Felling Bypass and the A194, then climbs John Reid Road through Harton before dropping to the coast. The last mile runs along the seafront at South Shields.

That final mile is the whole story. The first eleven miles are inland, sheltered by buildings and embankments and warmed by 57,000 bodies. Then the course turns onto an exposed North Sea coastline, and whatever the wind is doing arrives all at once, on tired legs, at the point where you have least ability to generate heat.

Runners describe the same thing every year: comfortable to Marsden, cold at the finish.

What Mid-September Usually Does in the North East

Long-term Met Office averages for the North East in September:

Nine wet days in thirty is roughly a one in three chance that any given September day sees rain. That is the honest probability to plan around, not a forecast.

A 17C average high is also a mid-afternoon figure. A race that starts mid-morning is being run in something closer to 13 to 15C, which is close to ideal half marathon weather. The difficulty is rarely heat. In September on that coast, the difficulty is wind and the twenty minutes after you stop moving.

You can check the full UK climate averages yourself for the stations nearest the route.

The Three Conditions Worth Planning For

A grey, still, 15C morning. The most likely outcome and the best one. Vest and shorts, no decisions required.

A westerly at your back. Prevailing wind on this coast is from the west and south west, which for the Great North Run means a tailwind for much of the way out. Pleasant while running, unhelpful the moment you stop, because you finish facing into a cooling breeze with a wet vest.

Rain that arrives in the second hour. Convective September showers on the coast are usually short. The risk is not the soaking; it is the drop in body temperature during the walk from the finish line to the baggage buses.

Kit: The Decisions That Actually Matter

• A cheap top layer you can bin at the start. Waves are held before they set off. Twenty minutes standing still in a light wind is where people get cold before they have run a step.
• A dry layer in your baggage bag, not in the car. The finish area is a long way from most parking, and the coast is where you will feel it.
• Nothing new on the day. A cold, wet forecast tempts people into an unfamiliar jacket. That is how chafing at mile nine happens.
• A foil blanket or a bin bag. Both weigh nothing. Both are what you will want between finishing and finding your family.
• Check the wind, not just the rain icon. A 12C day with a 15mph onshore wind feels considerably worse at mile twelve than the number suggests.

If You Are Spectating

Spectators have the harder weather day: several hours standing still, often on the coast, usually early. The Tyne Bridge and the seafront are the two spots everyone wants; both are exposed.

Bring more layers than you think, and a flask. If the forecast has rain and you want a dry option, the inland stretches through Gateshead and Heworth give you shelter and considerably shorter queues than the finish.

When the Forecast Becomes Reliable

Not yet. Anything published more than a fortnight out for a specific Sunday is a seasonal signal, not a forecast.

• 10 to 14 days out: general pattern only, useful for whether the month is trending unsettled.
• 5 days out: the first genuinely useful read on rain and wind for race day.
• 48 hours out: near settled, and the point at which you decide on kit.
• Race morning: check for any Met Office warnings, which are the only thing likely to change the event itself.

For a plain English answer on the morning, check Newcastle upon Tyne for the start and South Shields for the finish. They are twelve miles apart and they do not always agree, which is exactly the point.

Frequently Asked Questions

When is the Great North Run 2026?

Sunday 13 September 2026, running from Newcastle upon Tyne to South Shields over the half marathon distance of 13.1 miles.

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

Mild and often grey. North East September averages are a 17C daytime high, a 9C overnight low and rain on about nine days in the month. A mid-morning start typically means running in 13 to 15C.

Has the Great North Run ever been affected by weather?

The event has run in everything from warm sunshine to heavy rain and strong coastal wind. Conditions that would stop it entirely, such as a severe wind warning, are rare rather than unheard of.

Should I wear a jacket?

Usually not for the running. Almost always yes for the twenty minutes afterwards, which is when a wet vest on an exposed seafront does its damage.

Is the finish colder than the start?

It generally feels colder. The last mile is on the open coast and you arrive at it tired, wet with sweat and slowing down, so the same air temperature bites harder than it did on the Tyne Bridge.

Whatever the sky is doing on the thirteenth, the only question that matters is the one you ask on the morning. Get a plain English answer for any UK town at doineedabrolly.co.uk.