Typical Run Score
78
Good
London · August
Running in London in August
Typical August running conditions in London — and a live Run Score so you can see how today compares with the norm.
Avg temperature
66°F
Warm
Avg dew point
55°F
Comfortable
Best window
6–8 AM
Local time
London · today vs the August normTemperature · dew point · wind · timing
How August compares in London
August ranks 12th of 12 months for running in London, with a typical daytime Run Score of 78 (Good). It's the toughest month of the year here — temperatures around 66°F (19°C) with comfortable dew points near 55°F. Precipitation falls in roughly 10% of hours this month. Use the live tool below to see how today actually compares with the August norm.
Running weather in nearby cities
Same engine, different climate. Check the best time to run in these cities too.
Running in London in August: FAQ
Is it good to run in London in August?
Generally yes, with sensible timing. The typical daytime Run Score is 78 (Good), with temperatures around 66°F (19°C) and comfortable dew points. The best window is usually 6–8 AM.
How hot is it for running in London in August?
Typical temperatures average 66°F (19°C) (Warm) with dew points near 55°F. Dew point — not the thermometer — usually decides how hard the run feels.
What is a good Run Score?
Scores run 0–100. 97+ is Perfect, 80–96 is Great — conditions are actively working in your favour. 65–79 (Good) is solid. 45–64 (Mixed) means at least one factor — usually heat or dew point — is taxing you. Below 45 (Poor), expect a noticeably harder effort or hold back for safety.
Why does dew point matter more than temperature?
Your body cools by evaporating sweat. When the dew point climbs above roughly 60°F, the air is too saturated for sweat to evaporate efficiently, so heat builds up even if the thermometer looks reasonable. That's why a 70°F muggy morning can feel harder than a dry 80°F afternoon.
Get this on every run, automatically
RunWeather syncs with Strava, plans your week, and learns your heat tolerance — so the right time to run finds you.