Weather in London in December
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Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youLondon in December is cold — daytime temperatures average 8.7°C, dropping to 3.6°C at night. The month is moderately rainy (12 rainy days), with roughly 3.3 hours of sunshine a day. Weather-wise, this is one of the most reliable months to travel. For the complete picture, see the best time to visit London — every month compared. Once you know when to go, find your London packing list at 247PackingList.
Get ready for London in December
Search flights to London
Compare 100+ airlines for December — one search, best price.
Search Flights →Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
Check Price →What to pack for London in December
- Warm winter coat
- Thermal underlayers
- Gloves, hat and scarf
- Waterproof boots
- Light waterproof layer
Compare all months in London
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 7.9°C | 63.3mm | 10/10 |
| February | 9.7°C | 53.2mm | 10/10 |
| March | 11.2°C | 55.7mm | 10/10 |
| April | 14.0°C | 34.8mm | 10/10 |
| May | 17.4°C | 54.0mm | 10/10 |
| June | 21.5°C | 70.3mm | 10/10 |
| July | 22.6°C | 59.5mm | 10/10 |
| August | 22.7°C | 53.6mm | 10/10 |
| September | 20.8°C | 45.2mm | 10/10 |
| October | 16.1°C | 112.4mm | 9/10 |
| November | 11.6°C | 72.5mm | 10/10 |
| December | 8.7°C | 73.4mm | 10/10 |
Full month-by-month guide: best time to visit London →
For facts about United Kingdom — currency, language and dialling code — see our United Kingdom country guide at 247CountryInfo. Travellers also find it useful to keep a London travel guide to hand. Check clothing sizes in United Kingdom before you shop.
Frequently Asked Questions
Is December a good time to visit London?
December rates 10/10 for visiting London — excellent time to visit. Expect average highs of 8.7°C, 73.4mm of rain across the month and about 3.3 hours of daily sunshine.
What is the temperature in London in December?
In December, London has average highs of 8.7°C (47.7°F) and average lows of 3.6°C (38.5°F).
Does it rain in London in December?
Some rain is likely. London averages 73.4mm across about 12 rainy days in December, so a light waterproof layer is worth packing.
What should I wear in London in December?
For London in December (8.7°C highs / 3.6°C lows), pack warm winter coat plus thermal underlayers, gloves, hat and scarf, waterproof boots.
More essentials for London in December
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.