Historical weather data, all-time temperature records, and monthly climate averages for London, England, UK. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in London runs cool, with highs averaging just 52° and lows dipping to 38° across 66 years of records. Rain is more likely than not — there's a 59% chance of precipitation on this date — though snow isn't out of the question, showing up 9% of the time. The range is wide: this date has seen a balmy 71° as recently as 2025, and a bitter 25° back in 1996.
London's weather has some teeth when it wants to. The city hit a stunning 100° on July 19, 2022 — a landmark moment in UK climate history — and plunged to 3° on December 13, 1981. On the wet side, a single day in September 2024 dropped 2.03 inches of rain, and a January 1968 storm buried the city under 5.5 inches of snow.
London is warmest in mid-July, when highs average 71°, and coolest in early January at just 44°. The shoulder months of spring and autumn are mild but unsettled — October is the wettest stretch of the year, averaging 0.61 inches of precipitation in its first week alone. If you're chasing the best combination of warmth and manageable rain, late May through June is your window.