Vejret i London i december
London i december: koldt, lidt regn, med ren luft — et jævnt tidspunkt at tage afsted.
Opdateret september 2026 · klimanormaler fra ERA5-reanalysen
Nr. 11 af 12 måneder i London · Nr. 1051 af 1413 rejsemål at besøge i december · komfort 56/100 (niveau D)
- Dage
- 10°C
- Nætter
- 5°C
- Våde dage
- 12
- Sol
- 2.8 h
- Luftfugtighed
- 89%
- Dagslys
- 8 h

Sådan er december i London
Short grey days and a crowded, lit-up centre, followed by a city that empties completely between Christmas and New Year.
festivallow season
sikkerhed: medium
Noter fra rejsende om London i december
London's December threads settle on an average around 6°C, a high chance of rain, and darkness closing in by about 4pm. Regulars rate it milder than January or February, and they're clear about timing: the Christmas feel is best from roughly 1 to 21 December. After that it turns awkward — no public transport on the 25th, shops shut, many attractions closed, and Christmas Day meals priced accordingly.
Andre måneder i London
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.
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.
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.
Noterne for hele året findes på oversigten over London. Tilføj din egen note fra London på kortet.
Klimanormaler for London — december
Månedsgennemsnit fra ERA5-reanalysen. AQI er det gennemsnitlige amerikanske luftkvalitetsindeks for måneden.
Travlhed i London i december
Hvor travlt der er på selve stedet — skoleferier og masseferier, de måneder en redaktør har markeret, og hvor eftertragtet vejret gør dem. Aldrig en del af komfortscoren.
Stilleredaktionens stille måned, Christmas week, Christmas holidays i United Kingdom
TætpakketTravltSkuldersæsonStille
Bedste måneder for vejret i London
Rangeret efter dette rejsemåls egen klimakomfortscore året igennem — noget andet end, hvor travlt der bliver (se Travlhed ovenfor).
Hårdeste vejrVejret i London topper juni–august, bedst omkring juli.
Bedste vejrPænt vejrHårdeste vejr
Det sker i London i december
Tilbagevendende sæsonbegivenheder, naturfænomener, lukninger og helligdage — kurateret og med kilder.
- Helligdag
Christmas week
24. dec. – 1. jan.Jul & nytårLukningerNo trains at all on Christmas Day and a skeleton service after it. The centre is lit and crowded up to the 24th, then the city empties completely for a week. Kilde ↗
Lige i nærheden sker der noget
Inden for 300 km fra London — en dagstur eller et kort hop — hvor der sker noget denne måned. Aldrig en del af komfortscoren.
Hvor ligger London?
London i december — ofte stillede spørgsmål
- Er december et godt tidspunkt at besøge London?
- London i december: koldt, lidt regn, med ren luft — et jævnt tidspunkt at tage afsted. Måneden ligger nr. 11 ud af 12 for London på SeasonMaps komfortscore (56/100).
- Hvordan er vejret i London i december?
- I december har London i gennemsnit en dagtemperatur på 10 °C og en nattemperatur på 5.1 °C, med omkring 64.6 mm regn fordelt på cirka 11.6 regnvejrsdage.
- Hvordan er luftkvaliteten i London i december?
- London har et gennemsnitligt amerikansk luftkvalitetsindeks på omkring 37 i december.
- Sner det i London i december?
- London får omtrent 1.9 cm sne i december.
Inden for 300 km: Brighton's Starling murmurations, omkring 1. nov. – 28. feb. og Cambridge's Mill Road Winter Fair, omkring 1.–8. dec..