London weather in March 2026: what to expect

March in London feels like the city can't decide what season it is. Mornings are crisp and often damp, with temperatures hovering around 11.3°C (52.5°F) at their peak and dropping to 4°C (39°F) overnight. You'll see roughly 52mm of rain spread across 12 rainy days, so wet pavements and grey skies are the norm rather than the exception. The saving grace is that sunshine hours tick up to 6.8 per day—enough to catch patches of brightness between showers, though don't count on it for long stretches. The wind picks up in the afternoons, and humidity lingers from the overnight chill.

Spring is officially here, but you wouldn't know it from the crowds. March sits in the sweet spot between winter's tourist lull and Easter's chaos. Parks like St James's and Hyde Park start showing crocuses and daffodils, drawing locals out for walks, but the queues at major attractions—the Tower of London, Westminster Abbey—remain manageable. Prices dip slightly compared to April and May, and restaurant reservations are easier to snag. Street markets bustle with early spring energy, and the city's museums and galleries see steady but unhurried foot traffic.

Over the past decade, March has remained remarkably consistent. Temperature records show little deviation from the 11–12°C average, though rainfall has become slightly more concentrated into fewer, heavier days rather than drizzle spread across the month. 2026 is tracking with historical norms, suggesting typical British spring weather—changeable, cool, and unpredictable enough to keep you on your toes.

This month suits travelers who don't mind rain and want breathing room to explore. Budget travelers benefit from lower accommodation rates and fewer crowds. Photographers should bring a polarizing filter to catch the moody light breaking through clouds over the Thames. Families with school holidays can visit without battling peak-season hordes. Plan indoor activities—museums, galleries, markets—around the rain forecasts, and you'll find London at its most authentic and least exhausting in 2026.