Clima en Londres en mayo
Londres en mayo: agradable, algo lluvioso, con aire limpio — un momento excelente para ir.
Actualizado: septiembre de 2026 · normales climáticas del reanálisis ERA5
n.º 4 de 12 meses en Londres · n.º 395 de 1413 destinos para visitar en mayo · confort 86/100 (nivel A)
- Días
- 19°C
- Noches
- 10°C
- Días de lluvia
- 10
- Sol
- 10.5 h
- Humedad
- 74%
- Horas de luz
- 16 h

Cómo es mayo en Londres
Two bank holidays, the Chelsea Flower Show in the third week, and the parks at their greenest before summer dries them out.
holidayshoulder
fiabilidad: high
Notas de viajeros sobre Londres en mayo
Asked what to pack for late May, regulars give the only honest English answer: wet, dry, chilly, warm and sunny are all possible, so the list is layers, a light waterproof and shoes that will take five or six miles a day on uneven ground. Our row lands mild rather than warm - 18.9C reading as 17C in an 18.3 kph wind, over 9.8C nights - with 53.4mm of rain across 10 days, which is a shower every third day rather than a wet month. What May really offers is length: 15.6 hours of daylight with 10.5 of sun. The gardens are the reason people come now, and the last week of the month is also the dearest. The record: humidity 74 percent, a dew point of 7.8C and AQI 46.
Otros meses en Londres
Regulars are candid that recent early-September stretches have run warm and sunny, but are careful to add that's no guarantee for any given year - the month can just as easily turn wet, windy and chilly. Our row backs the moderate average sitting between those extremes, 20.7C over 12.3C nights, with 56.2mm of rain across 10.6 days. Regulars picked this month specifically expecting lighter crowds than July or August alongside reasonably decent weather, and are consistent that layering plus an umbrella and cardigan for cooler evenings is the standard advice regardless of how the daytime weather turns out. The record: humidity 78 percent, 7.8 hours of sun, a 19 kph wind and AQI 46.
London-forum threads on August are candid that it's the year's peak for crowds - school holidays fill the museums and attractions with families - though several posters note the weather itself runs milder than June or July, without June's harder sun. The catch more than one mentions: much of the city, from shops to older hotels, still doesn't have air conditioning, so a warm spell is felt more than the numbers alone suggest. August's record: 23.7C days, 14.8C nights, 53mm of rain across nine and a half days, 9.7 hours of sun and a clean AQI of 41 - comfortable weather, uncomfortable queues.
London regulars are unanimous that January is “cold and, at times, wet” rather than dramatic — expect “0°C and 10°C,” “damp, grey weather rather than freezing cold,” and snow that “never falls properly... when it does, it's over within hours.” The advice is layering over a full parka: warm coat, hat, scarf, gloves, with snow boots only needed if a forecast actually predicts sub-zero days. The upside forum posters keep repeating: attractions stay open, queues vanish, and hotel prices drop. Our record matches the “cold, not brutal” read: 7.4°C days, 1.7°C nights, 10.6 rain days and just 1.7cm of snow for the month.
Ask what June is like and Londoners on the forum answer with a range, not a number: "the June temperature in London could be anything from 20°C to 40°C," and "the weather in the UK has become even more unpredictable than usual." A more grounded regular puts typical daytime highs in the 70s Fahrenheit — maybe high 60s, maybe 80s on a hot day. The useful consensus is that June is one of the drier months and "an umbrella or a full waterproof jacket is unlikely to be needed," though it can equally be very dry or thundery. Standing advice is layers plus a light raincoat, which covers both. The unarguable part is daylight: this is the longest-light month of the year, and evenings run late. Our record has 20.7°C highs and 16.5 hours of daylight.
Las notas de todo el año están en la página general de Londres. Añade tu propia nota desde la ficha de Londres en el mapa.
Normales climáticas de Londres — mayo
Medias mensuales del reanálisis ERA5. El AQI es el índice de calidad del aire de EE. UU. (US AQI) medio del mes.
Afluencia en Londres en mayo
Cuánta gente hay en el propio lugar: vacaciones escolares y masivas, los meses que marcó el editor y cuánto atrae su clima. Nunca cuenta en la puntuación de confort.
Concurridoentre los picos, RHS Chelsea Flower Show, Late-May half-term en Reino Unido
Máxima afluenciaConcurridoTemporada mediaTranquilo
Los mejores meses para el clima de Londres
Ordenados según la propia puntuación de confort climático de este destino a lo largo del año, algo distinto de cuánta gente hay (consulta Afluencia, más arriba).
Clima aceptableEl clima de Londres alcanza su mejor momento de junio a agosto, sobre todo hacia julio.
Mejor climaClima aceptableClima más duro
Qué hay en Londres en mayo
Eventos de temporada recurrentes, espectáculos naturales, cierres y festivos, seleccionados y con fuente.
- Festival
RHS Chelsea Flower Show
19–23 MayGran festivalMucha genteReserva prontoFive days in the third week of May, members first. Tickets go months ahead and the hotels in SW3 know exactly when it is. Fuente ↗
Cerca, y con algo en marcha
A menos de 300 km de Londres —una excursión de un día o un trayecto corto— y con algo en marcha este mes. Nunca cuenta en la puntuación de confort.
¿Dónde está Londres?
Londres en mayo — preguntas frecuentes
- ¿Es mayo un buen momento para visitar Londres?
- Londres en mayo: agradable, algo lluvioso, con aire limpio — un momento excelente para ir. Es el mes n.º 4 de 12 en Londres según la puntuación de confort de SeasonMap (86/100).
- ¿Qué tiempo hace en Londres en mayo?
- En mayo, Londres tiene una máxima media diaria de 18.9°C y una mínima de 9.8°C, con unos 53.4 mm de lluvia repartidos en unos 10 días de lluvia.
- ¿Cómo es la calidad del aire en Londres en mayo?
- En mayo, Londres tiene un índice de calidad del aire (US AQI) medio de unos 46.
A menos de 300 km: Brighton Festival and Fringe en Brighton, 1–31 May y May Morning en Oxford, 1 May.