Llandudno Weather in December
December in Llandudno averages 9°C (48°F) during the day and 4°C (39°F) at night. It is the wettest month of the year, with 111 mm (4.4 in) of rainfall on average, so waterproof gear is a must.
Rainfall in Llandudno in December
Expect frequent showers this month, so make sure to have an umbrella to keep yourself dry. Historically, approximately 21 days this month are expected to have rain, averaging 111 mm (4.4 in). Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Llandudno in December
Daytime highs in Llandudno in December reach 9°C (48°F), with nights around 4°C (39°F). The winter season takes place during December. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Llandudno in December
The area sees fewer sunny days, with a projection of about 26 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.December in Llandudno has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United Kingdom, check out our Llandudno's climate page.
Llandudno Temperature in December
Min Temperature
4°C (39°F)
Max Temperature
9°C (48°F)
Chance of Rain
69%
Precipitation
111 mm (4.4 in)
Rainy days
21 days
Sunshine
26 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Llandudno typically stay consistent throughout December, with daily highs averaging around 9°C (48°F). Nights are cold, with lows around 4°C (39°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Llandudno in December
Browse day-by-day weather records for Llandudno spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Llandudno historical weather extremes in December
Our historical data for Llandudno spans 1976 to 2025, revealing these weather extremes.
- Llandudno recorded its highest December temperature of 15°C (59°F) on December 9, 2025.
- The coldest December day was on December 20, 2010, with a maximum of -4°C (25°F).
- Nighttime temperatures dropped to -11°C (12°F) on December 20, 2010, marking the coldest December night on record.
- The heaviest December precipitation occurred on December 26, 2015, when 64 mm (2.5 in) of precipitation fell.
Best Places in the United Kingdom in December
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in December →
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What to Wear in Llandudno in December
Dress warmly and in layers for your trip to Llandudno in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Llandudno in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United Kingdom, check out our Llandudno's climate page.
See the full Llandudno climate overview or explore weather in the United Kingdom.
