SeasonScore
London, United Kingdom
Photo: Diliff · CC BY 3.0

United Kingdom

London in December

🧥 Winter

Cold and some showers.

🎒 Pack: warm jacket for evenings

Best months: Jul (9.6), Sep (9.6), Jun (9.5)

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Why December scores 8.3What goes into the score

How it works
🌡️ 9° / 5°C🌧️ 77 mm💧 dew pt 5°🍃 PM2.5 7
  • Weather comfort7.3
    • !Cold (9°C highs / 5°C lows)
    • ✓Comfortable humidity (dew point 5.3°C)
    • ✓Mostly dry (~77 mm rain)
  • Air quality9.7
    • ✓Good (within WHO guideline) (PM2.5 ~7 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut December side by side with another month
DecJul
Score8.3 Very good9.6 Excellent
Season🧥 Winter☀️ Summer
High / low9° / 5°24° / 16°
Rain77 mm54 mm
Humiditydew pt 5°dew pt 13°
PM2.57 µg/m³6 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: London Weather Centre weather-station normals.

Holidays & crowdsDecember 2026

Long weekend

There's at least one long weekend. Domestic travel picks up and popular spots get busier over those days.

  • Boxing Day 25–28 Dec · 4 days off in a row

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore LondonEvents, sights, food & souvenirs

Check event dates locally

The UK's capital on the Thames, visited for royal landmarks, world-class museums, theatre, parks and diverse neighbourhoods.

Events in December
New Year's Eve fireworksEvery year31 December every year

Fireworks over the Thames at midnight.

Why go: Viewing areas are ticketed.

Where: River Thames by the London Eye

Coming up later

Chelsea Flower ShowDate variesUsually late May

A garden and flower show.

Why go: Tickets sell out well ahead.

Where: Royal Hospital Chelsea

Trooping the ColourDate variesUsually a Saturday in June

A military parade marking the monarch's official birthday.

Why go: Stand along The Mall early.

Where: The Mall and Horse Guards Parade

Wimbledon ChampionshipsDate variesUsually late June to mid-July

The grass-court tennis Grand Slam.

Why go: Some tickets are released daily via the public queue.

Where: All England Club, Wimbledon

Plan this tripTickets, data and transfers for London

Airport transfer Kiwitaxi

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