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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Metro Report weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
For London’s next 30 days, keep a light jacket handy and expect a mix of mild spells and cooler interludes, rather than any prolonged heatwave. The live forecast above shows the overall pattern shifting from unsettled to more settled conditions by late week two.
What kind of weather is typical for London over the next month?
London sits in the Thames Valley, so it often escapes the sharpest Atlantic fronts that hit western coasts. Over 30 days you’ll see a blend of dry, bright days and occasional rain bands moving southeast. Early in the period, low pressure nudges in from the southwest, bringing cloud and patchy drizzle. By the second week, high pressure builds from the Azores, giving quieter, warmer afternoons — especially for central and eastern parts of the capital.
How reliable is a 30‑day forecast for London?
A month‑ahead outlook can indicate broad trends — such as whether it turns milder or wetter — but day‑to‑day detail becomes uncertain after 7–10 days. For the most up‑to‑date guidance, combine this page with the live forecast above and check the 10‑day UK outlook for shorter‑range accuracy.
Is the 30‑day forecast the same as the BBC Weather 21‑day forecast for London?
No. The BBC Weather 21‑day forecast covers three weeks; our 30‑day outlook extends to a full month. Both use Met Office data, but the longer range shows broader signals rather than precise daily highs. For week‑by‑week detail, also look at our UK weather hub.
Can I get a London weather 30‑day outlook from the Met Office?
Yes. The Met Office provides a 30‑day forecast for London that summarises general trends. Their data underpins this page, but the live forecast above and our interpretation are written specifically for Metro Report. For raw model output you can also check Gismeteo, though we recommend the Met Office for UK reliability.
How does January weather in London compare to the 30‑day outlook?
If you’re checking the 30‑day forecast in winter, expect more frequent cloud and shorter daylight. The live forecast above will show whether a cold spell or milder Atlantic air is more likely. For a longer view, compare with the UK weather hub and the London page.