December stays on Clwydian Range and Berwyns
Ty Ni
Bala · Sleeps 6
Indicative catalogue price £373 for 7 nightsExact December prices and availability are checked after you choose a week.What is Clwydian Range and Berwyns mountain weather like in December?
Typical mountain and low-level wind, temperature and rainfall for December, based on 40 years of weather history.
40-year mountain climate
Typical high-ground conditions in December.
Historically, December has been a mixed and often challenging month on the high ground. Of 1,240 representative high-ground days, 16% were excellent or good, 57% were average, and 27% were poor or severe.
Dry days accounted for 51% of the sample, while extensive cloud affected 64%. These figures describe representative high ground around 827 metres, so coastal and low-level conditions can be milder.
Excellent or good16%Historically dry51%High-ground temperature1.2°CTypical maximum gust30 mphStronger days around 45 mph
Plan beyond the forecast
Choose an area and week.
Saturday dates are highlighted because they usually unlock the widest choice of seven-night cottage stays. Other arrival days still work.
Typical conditions, not a forecastThis describes representative high ground. A difficult hill day can still be suitable for a lower-level plan.
Week 50 · 12 December
What this week is typically like on Clwydian Range and Berwyns high ground.
Across 280 comparable historical hill days, 17% were excellent or good and 24% were poor or severe.
Check the live Clwydian Range and Berwyns forecast →Historically excellent or good17%280 comparable days
Excellent6%Good11%Average59%Poor23%Severe1%
Historically dry58% of daysTypical daily max gust28 mphStronger days around 42 mphTypical high ground0.7°C24-hour mean near 827 mExtensive cloud63% of days
December context: 16% of days across the month were excellent or good; 27% were poor or severe. Read the full December guide.
Valley and low level for this week
Around Llangollen.
Representative base · 80 mTypical daily high7.6°CWarmer days 10.9°CHistorically dry62%59% dry with lighter windMaximum wind12 mphStronger days 17 mphTypical overnight low3.3°CCooler nights 0.5°C
Planning a different time of year?Compare Clwydian Range and Berwyns month by month
Valleys and trip bases
Low-level weather around Llangollen in December.
Llangollen, at roughly 80 metres, provides a practical low-level reference for Clwydian Range and Berwyns. Across 1,240 historical days, the typical daytime high was 8.0°C, with warmer days around 11.0°C.
About 55% of days were dry and 52% combined dry weather with lighter winds. Conditions vary across glens, coasts and villages, so this should be used as regional trip-planning guidance rather than a forecast for every location.
Typical daily high8.0°CWarmer days around 11.0°CTypical overnight low3.7°CCooler nights around 0.5°CHistorically dry55%8% had 10 mm+ rainTypical maximum wind13 mphStronger days around 18 mph
January to December
Clwydian Range and Berwyns weather by month.
Each month has a detailed guide comparing high-ground hill days with typical conditions at a representative valley or low-level trip base.
January17% good
High ground: 57% average · 26% poor or severeLlangollen: 55% dry · 7.5°C daily high
February19% good
High ground: 56% average · 25% poor or severeLlangollen: 57% dry · 8.1°C daily high
March21% good
High ground: 60% average · 19% poor or severeLlangollen: 56% dry · 9.9°C daily high
April28% good
High ground: 60% average · 12% poor or severeLlangollen: 56% dry · 12.0°C daily high
May28% good
High ground: 60% average · 12% poor or severeLlangollen: 57% dry · 15.0°C daily high
June27% good
High ground: 63% average · 10% poor or severeLlangollen: 58% dry · 17.6°C daily high
July26% good
High ground: 65% average · 9% poor or severeLlangollen: 58% dry · 19.1°C daily high
August24% good
High ground: 66% average · 10% poor or severeLlangollen: 60% dry · 18.9°C daily high
September23% good
High ground: 63% average · 14% poor or severeLlangollen: 62% dry · 16.8°C daily high
October16% good
High ground: 64% average · 20% poor or severeLlangollen: 55% dry · 13.7°C daily high
November17% good
High ground: 62% average · 21% poor or severeLlangollen: 54% dry · 10.1°C daily high
December16% good
High ground: 57% average · 27% poor or severeLlangollen: 55% dry · 8.0°C daily high
Strongest historical signals
Best weeks of the year for Clwydian Range and Berwyns mountain weather.
These are the six week bands with the largest historical share of excellent or good days. They are useful for broad trip timing, but the live forecast should decide the final plan.
- 01Week around 17 April32% excellent or good · 9% poor or severePlan this week →
- 02Week around 17 July32% excellent or good · 11% poor or severePlan this week →
- 03Week around 29 May31% excellent or good · 10% poor or severePlan this week →
- 04Week around 1 May30% excellent or good · 10% poor or severePlan this week →
- 05Week around 10 April30% excellent or good · 12% poor or severePlan this week →
- 06Week around 5 June30% excellent or good · 12% poor or severePlan this week →
20 mountain areas
Compare another part of the UK.
Each page includes weekly and monthly high-ground and low-level climate summaries, a highlighted Saturday planner and nearby accommodation.
Angus GlensScotland · strongest historical month: May23% good Argyll and Loch LomondScotland · strongest historical month: May28% good Bannau Brycheiniog (Brecon Beacons)Wales · strongest historical month: June31% good CairngormsScotland · strongest historical month: May22% good Clwydian Range and BerwynsWales · strongest historical month: April28% good DartmoorEngland · strongest historical month: July37% good Eryri (Snowdonia)Wales · strongest historical month: May31% good Lake DistrictEngland · strongest historical month: May35% good Lewis and HarrisScotland · strongest historical month: May29% good LochaberScotland · strongest historical month: May25% good Mid Wales and Cambrian MountainsWales · strongest historical month: May32% good Monadhliath and Creag MeagaidhScotland · strongest historical month: May22% good North PenninesEngland · strongest historical month: May28% good Northumberland and CheviotsEngland · strongest historical month: May32% good Northwest HighlandsScotland · strongest historical month: May27% good Peak DistrictEngland · strongest historical month: July30% good Perthshire HighlandsScotland · strongest historical month: May25% good SkyeScotland · strongest historical month: May38% good Southern ScotlandScotland · strongest historical month: May34% good Yorkshire DalesEngland · strongest historical month: May32% good