If you're planning anything outdoors in London, the good news is the city is drier than people think — less rainfall than Manchester, Cardiff or Glasgow, and a rain shadow effect from the Welsh hills keeps totals down. The bad news is unpredictability: Atlantic fronts, Continental heatwaves and North Sea easterlies all reach London, sometimes in the same week. August can be genuinely stifling once the urban heat island takes hold — central London routinely sits a couple of degrees above the surrounding countryside.
Check today's verdict in the app →If you're running in London, the drier-than-average climate is in your favour year-round, but summer heat is the planning challenge — by 9am in July the parks can already be uncomfortable, and an evening run often beats a morning one once the city's holding heat.
WeatherForIt gives you an instant Yes / Take Care / Best Avoided for Running in London right now — based on live conditions for the next few hours.
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