Best time to visit Northwest Highlands 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 Northwest Highlands high ground.
Across 280 comparable historical hill days, 15% were excellent or good and 32% were poor or severe.
Check the live Northwest Highlands forecast →Historically excellent or good15%280 comparable days
Excellent3%Good12%Average53%Poor22%Severe10%
Historically dry34% of daysTypical daily max gust31 mphStronger days around 44 mphTypical high ground6.2°C24-hour mean near 1,055 mExtensive cloud61% of days
September context: 16% of days across the month were excellent or good; 29% were poor or severe. Read the full September guide.
Valley and low level for this week
Around Ullapool.
Representative base · 10 mTypical daily high14.4°CWarmer days 16.6°CHistorically dry30%29% dry with lighter windMaximum wind15 mphStronger days 21 mphTypical overnight low10.8°CCooler nights 9.2°C
Planning a different time of year?Compare Northwest Highlands month by month
January to December
Northwest Highlands 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.
January10% good
High ground: 47% average · 43% poor or severeUllapool: 33% dry · 7.1°C daily high
February12% good
High ground: 45% average · 43% poor or severeUllapool: 33% dry · 7.1°C daily high
March15% good
High ground: 48% average · 37% poor or severeUllapool: 36% dry · 8.4°C daily high
April22% good
High ground: 57% average · 21% poor or severeUllapool: 44% dry · 10.0°C daily high
May27% good
High ground: 54% average · 19% poor or severeUllapool: 45% dry · 12.3°C daily high
June19% good
High ground: 63% average · 18% poor or severeUllapool: 43% dry · 14.3°C daily high
July15% good
High ground: 63% average · 22% poor or severeUllapool: 37% dry · 15.7°C daily high
August17% good
High ground: 58% average · 25% poor or severeUllapool: 34% dry · 15.8°C daily high
September16% good
High ground: 55% average · 29% poor or severeUllapool: 38% dry · 14.6°C daily high
October13% good
High ground: 47% average · 40% poor or severeUllapool: 33% dry · 12.3°C daily high
November14% good
High ground: 48% average · 38% poor or severeUllapool: 32% dry · 9.5°C daily high
December12% good
High ground: 46% average · 42% poor or severeUllapool: 34% dry · 7.4°C daily high
Strongest historical signals
Best weeks of the year for Northwest Highlands 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 8 May35% excellent or good · 17% poor or severePlan this week →
- 02Week around 29 May26% excellent or good · 16% poor or severePlan this week →
- 03Week around 24 April25% excellent or good · 16% poor or severePlan this week →
- 04Week around 17 April25% excellent or good · 19% poor or severePlan this week →
- 05Week around 15 May25% excellent or good · 19% poor or severePlan this week →
- 06Week around 22 May25% excellent or good · 23% 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