August stays on Eryri (Snowdonia)
Plas Isaf
Beddgelert · Sleeps 9
Indicative catalogue price £807 for 7 nightsExact August prices and availability are checked after you choose a week.What is Eryri (Snowdonia) mountain weather like in August?
Typical mountain and low-level wind, temperature and rainfall for August, based on 40 years of weather history.
40-year mountain climate
Typical high-ground conditions in August.
Historically, August has been a variable month with a useful share of better high-ground days. Of 1,240 representative high-ground days, 26% were excellent or good, 59% were average, and 15% were poor or severe.
Dry days accounted for 46% of the sample, while extensive cloud affected 49%. These figures describe representative high ground around 1,085 metres, so coastal and low-level conditions can be milder.
Excellent or good26%Historically dry46%High-ground temperature8.8°CTypical maximum gust26 mphStronger days around 35 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 33 · 14 August
What this week is typically like on Eryri (Snowdonia) high ground.
Across 280 comparable historical hill days, 25% were excellent or good and 16% were poor or severe.
Check the live Eryri (Snowdonia) forecast →Historically excellent or good25%280 comparable days
Excellent2%Good23%Average59%Poor15%Severe1%
Historically dry45% of daysTypical daily max gust27 mphStronger days around 35 mphTypical high ground8.9°C24-hour mean near 1,085 mExtensive cloud47% of days
August context: 26% of days across the month were excellent or good; 15% were poor or severe. Read the full August guide.
Valley and low level for this week
Around Betws-y-Coed.
Representative base · 35 mTypical daily high18.7°CWarmer days 21.0°CHistorically dry48%48% dry with lighter windMaximum wind11 mphStronger days 15 mphTypical overnight low13.0°CCooler nights 11.2°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 August.
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 18.6°C, with warmer days around 20.9°C.
About 50% of days were dry and 49% 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 high18.6°CWarmer days around 20.9°CTypical overnight low12.9°CCooler nights around 10.9°CHistorically dry50%8% had 10 mm+ rainTypical maximum wind11 mphStronger days around 15 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