January stays on Eryri (Snowdonia)
Plas Isaf
Beddgelert · Sleeps 9
Indicative catalogue price £807 for 7 nightsExact January prices and availability are checked after you choose a week.What is Eryri (Snowdonia) mountain weather like in January?
Typical mountain and low-level wind, temperature and rainfall for January, based on 40 years of weather history.
40-year mountain climate
Typical high-ground conditions in January.
Historically, January has been a mixed and often challenging month on the high ground. Of 1,240 representative high-ground days, 16% were excellent or good, 50% were average, and 34% were poor or severe.
Dry days accounted for 45% of the sample, while extensive cloud affected 60%. These figures describe representative high ground around 1,085 metres, so coastal and low-level conditions can be milder.
Excellent or good16%Historically dry45%High-ground temperature-0.7°CTypical maximum gust33 mphStronger days around 48 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 2 · 9 January
What this week is typically like on Eryri (Snowdonia) high ground.
Across 280 comparable historical hill days, 14% were excellent or good and 37% were poor or severe.
Check the live Eryri (Snowdonia) forecast →Historically excellent or good14%280 comparable days
Excellent3%Good11%Average49%Poor26%Severe11%
Historically dry43% of daysTypical daily max gust37 mphStronger days around 49 mphTypical high ground-0.4°C24-hour mean near 1,085 mExtensive cloud60% of days
January context: 16% of days across the month were excellent or good; 34% were poor or severe. Read the full January guide.
Valley and low level for this week
Around Betws-y-Coed.
Representative base · 35 mTypical daily high8.5°CWarmer days 10.6°CHistorically dry45%42% dry with lighter windMaximum wind15 mphStronger days 20 mphTypical overnight low4.0°CCooler nights 0.9°C
Planning a different time of year?Compare Eryri (Snowdonia) month by month
Valleys and trip bases
Low-level weather around Betws-y-Coed in January.
Betws-y-Coed, at roughly 35 metres, provides a practical low-level reference for Eryri (Snowdonia). Across 1,240 historical days, the typical daytime high was 7.9°C, with warmer days around 10.4°C.
About 49% of days were dry and 45% 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 high7.9°CWarmer days around 10.4°CTypical overnight low3.7°CCooler nights around 0.6°CHistorically dry49%11% had 10 mm+ rainTypical maximum wind14 mphStronger days around 19 mph
January to December
Eryri (Snowdonia) 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.
January16% good
High ground: 50% average · 34% poor or severeBetws-y-Coed: 49% dry · 7.9°C daily high
February17% good
High ground: 52% average · 31% poor or severeBetws-y-Coed: 50% dry · 8.3°C daily high
March21% good
High ground: 55% average · 24% poor or severeBetws-y-Coed: 50% dry · 9.9°C daily high
April29% good
High ground: 56% average · 15% poor or severeBetws-y-Coed: 52% dry · 12.1°C daily high
May31% good
High ground: 53% average · 16% poor or severeBetws-y-Coed: 52% dry · 14.9°C daily high
June29% good
High ground: 58% average · 13% poor or severeBetws-y-Coed: 53% dry · 17.3°C daily high
July27% good
High ground: 60% average · 13% poor or severeBetws-y-Coed: 52% dry · 18.6°C daily high
August26% good
High ground: 59% average · 15% poor or severeBetws-y-Coed: 50% dry · 18.6°C daily high
September23% good
High ground: 59% average · 18% poor or severeBetws-y-Coed: 56% dry · 16.8°C daily high
October16% good
High ground: 58% average · 26% poor or severeBetws-y-Coed: 49% dry · 13.9°C daily high
November17% good
High ground: 54% average · 29% poor or severeBetws-y-Coed: 46% dry · 10.5°C daily high
December16% good
High ground: 50% average · 34% poor or severeBetws-y-Coed: 48% dry · 8.6°C daily high
Strongest historical signals
Best weeks of the year for Eryri (Snowdonia) 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 April35% excellent or good · 14% poor or severePlan this week →
- 02Week around 29 May34% excellent or good · 12% poor or severePlan this week →
- 03Week around 1 May34% excellent or good · 14% poor or severePlan this week →
- 04Week around 5 June34% excellent or good · 15% poor or severePlan this week →
- 05Week around 12 June31% excellent or good · 13% poor or severePlan this week →
- 06Week around 17 July31% excellent or good · 13% 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