London Weather
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Live forecasts update automatically; written guidance last reviewed 14 June 2026 by the Pressorbit weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
The United Kingdom’s maritime climate keeps temperatures moderate year-round, but variability is the norm. For London, average annual rainfall stands at roughly 600 mm – notably lower than many other British cities – with January the coolest month (average high 8 °C) and July the warmest (average high 23 °C).
Reading the live forecast above
The live conditions above show current temperature in both Celsius and Fahrenheit, wind speed and direction, humidity, and a short-term outlook. Use the hourly toggle to see weather in London hourly for the next 48 hours, including rain probability and cloud cover. The 10‑day tab gives a broad pattern, while the 14‑day view is useful for planning ahead – though confidence drops after day 7. For longer horizons, the 30‑day outlook should be treated as a trend indicator, not a precise prediction.
London’s climate through the year
Spring (March–May)
Averages range from 11–16 °C (52–61 °F) with occasional chilly mornings. Rainfall is moderate – about 45 mm per month – but showers often pass quickly. Daffodils appear in March; by May, parks are green and temperatures can reach 19 °C.
Summer (June–August)
Typical highs: 21–24 °C (70–75 °F), though heatwaves occasionally push above 30 °C. Rainfall is slightly lower than spring, around 50 mm per month. Thunderstorms can develop after a hot spell. The extended daylight (sunset after 9 pm in June) makes this the best season for outdoor sightseeing.
Autumn (September–November)
September often stays pleasant (19 °C), cooling to 10 °C by November. Rainfall increases to 60 mm per month, with misty mornings common. Winds pick up in late autumn as Atlantic depressions move in.
Winter (December–February)
Daytime highs hover around 7–9 °C (45–48 °F); overnight frosts are possible but not severe. Snowfall is infrequent – typically 5–10 days of lying snow per year – but rain and grey skies dominate. December averages 50 mm of rain.
How the maritime climate affects London
London sits in the Thames Valley, sheltered from strong Atlantic storms by the Chiltern Hills and the North Downs. This creates a slight rain shadow: the city gets about 100 mm less annual rain than Manchester or Glasgow. However, the weather remains changeable because of competing air masses – a warm, damp southwesterly can switch to a cool, dry northeasterly within 24 hours. Always check the live forecast before heading out; a single day can include sun, cloud and a brief shower.
Best time to visit and what to pack
Late spring (May) and early autumn (September) offer the best balance of mild temperatures, lower rainfall and fewer crowds.
Pack layers: a waterproof jacket is useful any month. In summer include a light jumper for evenings; in winter add a warm coat, scarf and gloves. Comfortable walking shoes are essential – even on dry days you may cover many kilometres walking between attractions.
Frequently asked questions about London weather
What’s the weather in London tomorrow likely to be?
The live forecast above gives the most accurate weather in London tomorrow, including morning, afternoon and evening conditions. Generally, expect a mix of cloud and occasional rain; temperatures are usually milder than today’s if a westerly wind is blowing. Check the wind direction for clues.
How reliable is the weather in London 10 days or 14 days out?
A weather in London 10 days forecast is moderately reliable for broad trends (e.g., colder or warmer than average), but day‑to‑day details become uncertain after 7 days. The 14‑day view is best used for planning activities that can be rescheduled. For precise timing, rely on the hourly section of the live forecast.
Does it rain a lot in London compared to other UK cities?
No – London is one of the driest UK cities. Its annual ~600 mm of rain is less than half that of Glasgow (~1,100 mm) and significantly lower than Manchester or Liverpool. The weather london 30 days outlook can give a general sense of wet or dry spells, but the local microclimate often keeps showers light.
How do I read London weather in Celsius and Fahrenheit?
The live forecast shows both london weather celsius and london weather fahrenheit by default. A quick rule: 0 °C = 32 °F, 10 °C = 50 °F, 20 °C = 68 °F. For temperatures between, each degree Celsius is roughly 1.8 °F.
Where can I find a 15‑day forecast for London?
The live forecast above includes a 14‑day view – weather london 14 days is essentially the same as 15, with day‑15 typically added as a trend. For a london weather 15 days outlook, check the extended tab. Remember that confidence drops sharply beyond 10 days.
For a broader picture of conditions across the UK, visit our UK weather hub, or compare London with Birmingham Weather. To plan around specific events, the 10‑day forecast page provides a consistent format for all locations.
