What is the weather like in London during December?

This post is a summary of the December weather in London, with tips on what to wear as well as things to do. London in December tends to be mostly winter-like; however, some fall-like days are still likely early in the month.  If you will be in London at the start or the end of the month, then check out our weather guides for November and January.  

Average Temperatures
How Much Sun and Rain
What to Wear
Things to Do in December
Christmas in London
Free Tours by Foot




Early this month, the afternoon high temperatures tend to be 9-10 C (upper 40’s F) with overnight lows around 5-6 C (lower 40’s F). On a couple of the warmer days, high temperatures will reach 12-13 C (mid-50’s F). The highest temperature recorded here in December was 17 C (63 F).  As we near Christmas, daytime highs tend to be mostly 6-7 C (mid-40’s F) and early morning lows around 3-4 C (upper 30’s F). A few mornings will see temperatures dipping down to around -1 to -2 C (30 F). The coldest temperature recorded in London in December was -12 C (10 F).


Weather in London in December

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The sun is low in the sky this month with daylight averaging about 8 hours. Skies this month tend to be partly to mostly overcast with about 9-10 days seeing at least 1 mm (.04 inches) of precipitation, mostly falling in the form of light to moderate rain. Some snow is reported here in December, but only on about 2-3 days.


Average Sun and Rain in London in December


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It is always best to carry an umbrella in London and during December, winter attire like hats and gloves with a medium to heavy coat will also be needed. Temperatures can drop significantly at night, so bee sure to bring extra layers if you will be out after dark. Also, don’t forget festive clothing if you plan to celebrate the holidays here! 


What to Wear in London in December


  • Thick coat 
  • Sweater 
  • Wooly hat 
  • Scarf 
  • Gloves 
  • Winter boots 
  • Multiple layers


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