Mountain Weather

Best time to visit Mid Wales and Cambrian Mountains for mountain weather.

Typical high-ground and low-level conditions for every week and month, drawn from 40 years of weather history.

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 37 · 12 September

What this week is typically like on Mid Wales and Cambrian Mountains high ground.

Across 280 comparable historical hill days, 27% were excellent or good and 14% were poor or severe.

Check the live Mid Wales and Cambrian Mountains forecast →
Historically excellent or good27%280 comparable days
Excellent4%Good23%Average59%Poor14%Severe0%
Historically dry53% of daysTypical daily max gust25 mphStronger days around 36 mphTypical high ground9.2°C24-hour mean near 752 mExtensive cloud45% of days

September context: 28% of days across the month were excellent or good; 14% were poor or severe. Read the full September guide.

Valley and low level for this week

Around Rhayader.

Representative base · 225 m
Typical daily high16.0°CWarmer days 18.2°CHistorically dry57%54% dry with lighter windMaximum wind12 mphStronger days 16 mphTypical overnight low9.6°CCooler nights 7.7°C
Planning a different time of year?Compare Mid Wales and Cambrian Mountains month by month
January to December

Mid Wales and Cambrian Mountains 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 severeRhayader: 51% dry · 6.8°C daily high
February21% good
High ground: 53% average · 26% poor or severeRhayader: 55% dry · 7.2°C daily high
March24% good
High ground: 56% average · 20% poor or severeRhayader: 54% dry · 8.8°C daily high
April30% good
High ground: 57% average · 13% poor or severeRhayader: 54% dry · 11.1°C daily high
May32% good
High ground: 56% average · 12% poor or severeRhayader: 56% dry · 14.1°C daily high
June30% good
High ground: 59% average · 11% poor or severeRhayader: 56% dry · 16.6°C daily high
July29% good
High ground: 61% average · 10% poor or severeRhayader: 56% dry · 18.1°C daily high
August27% good
High ground: 63% average · 10% poor or severeRhayader: 56% dry · 17.9°C daily high
September28% good
High ground: 58% average · 14% poor or severeRhayader: 61% dry · 15.9°C daily high
October19% good
High ground: 61% average · 20% poor or severeRhayader: 52% dry · 12.9°C daily high
November19% good
High ground: 59% average · 22% poor or severeRhayader: 51% dry · 9.3°C daily high
December17% good
High ground: 54% average · 29% poor or severeRhayader: 51% dry · 7.3°C daily high
Strongest historical signals

Best weeks of the year for Mid Wales and Cambrian Mountains 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.

  1. 01
    Week around 17 April35% excellent or good · 11% poor or severe
    Plan this week →
  2. 02
    Week around 19 June34% excellent or good · 8% poor or severe
    Plan this week →
  3. 03
    Week around 17 July34% excellent or good · 10% poor or severe
    Plan this week →
  4. 04
    Week around 1 May34% excellent or good · 11% poor or severe
    Plan this week →
  5. 05
    Week around 10 April33% excellent or good · 10% poor or severe
    Plan this week →
  6. 06
    Week around 10 July33% excellent or good · 11% poor or severe
    Plan 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