Heathrow Weather
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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Leeds Wire weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
For the most accurate and up-to-date conditions, the live forecast above is your best guide. Heathrow’s weather is largely determined by its position west of London, often seeing slightly different cloud and wind patterns than the central city.
What is the typical weather pattern at Heathrow?
Heathrow sits in a relatively dry part of the UK, averaging around 600mm of rain per year. Winters are cool and damp, with temperatures rarely dropping below freezing for long. Summers are mild to warm, with July highs typically reaching 23–25°C. Fog can form in autumn and winter mornings due to the airport’s proximity to the River Thames and open land.
How does Heathrow’s weather affect flights?
Low cloud and fog are the main disruptors, reducing visibility for take-off and landing. Strong crosswinds, especially from the south-west, can also cause delays. Snow is infrequent but can shut runways if it settles. The met office weather heathrow reports are critical for airlines planning diversions. For a broader outlook, see our 10 Day Weather Forecast UK.
Is the weather at Heathrow the same as central London?
Not always. Heathrow is slightly cooler in summer and colder in winter due to less urban heat island effect. It can also be windier and more prone to fog than the City or West End.
How accurate are 10-day forecasts for Heathrow?
Reliable for general trends (e.g., rain or sun) up to 5 days out. Beyond that, confidence drops, especially for exact timings and temperatures. Check the weather in heathrow airport 10 days forecast for a broad view, but confirm the day before travel.
Does snow ever close Heathrow?
Yes, but rarely. Significant snowfall (over 5cm) can cause runway closures and cancellations. The airport has snow-clearing equipment, but heavy, wet snow or freezing rain is the biggest problem.
Sources
For conditions across the country, visit our UK weather hub or check Bristol Weather for the South West.
