Cruachan South Top is a 525m (1721ft) Scottish mountain classified as a Hump, one of 713 Humps in Scotland. Check the Cruachan South Top weather forecast for wind, rain and visibility before your walk. Even at lower elevations, hill weather can differ significantly from the valley.
Geology: The bedrock here is Ben Ledi Grit Formation — Psammite and semipelite — a fine-grained metamorphic rock derived from ancient mudstone. Age: Ediacaran Period.
Planning to walk Cruachan South Top? Our summit weather forecast shows live conditions at 525m including wind speed, wind chill, temperature, freezing level, cloud base and rain risk. The forecast updates hourly using data from 7 weather models blended into the HILLANDGLEN ensemble — accuracy-weighted so the best-performing models have the most influence.
Key conditions to check before climbing Cruachan South Top: wind chill (the real temperature you'll feel on exposed ridges), freezing level (whether ice and snow are likely on the summit), cloud base (whether you'll have visibility at 525m), and wind gusts (which can be significantly stronger on exposed summits than in the valley below).
Cruachan South Top weather can change quickly. Valley conditions often differ from the summit — our forecast applies lapse rate adjustments to give you the actual temperature and wind at the top, not the nearest town. Check the 14-day outlook to find the best day to walk Cruachan South Top.
Frequently Asked Questions
How high is Cruachan South Top?
Cruachan South Top is 525 metres (1721 feet) above sea level. It is classified as a Hump in Scotland.
What is the weather like on Cruachan South Top?
Cruachan South Top stands at 525m, where conditions can still differ from the valley. Wind is typically stronger on the summit, and rain showers can arrive quickly in Scotland. Check the hillandglen.com forecast for live summit wind, temperature and rain risk.
Is Cruachan South Top suitable for beginners?
At 525m, Cruachan South Top is one of the more accessible hills and is popular with walkers of all abilities. However, weather can change quickly — always check the forecast and carry waterproofs. Good footwear with grip is recommended as paths can be muddy or rocky.
What is a Hump?
A Hump (Hundred Metre Prominence) is any hill in the British Isles with a prominence of at least 100 metres. There are over 700 Humps. The list sits between the Tumps (30m prominence) and Marilyns (150m prominence).
When is the best time to climb Cruachan South Top?
The best months for climbing Cruachan South Top are typically May to September, when days are longest and weather is generally drier. June often has the best combination of long daylight hours and settled weather, with midges at their worst in July-August. Autumn can also be excellent with clearer skies and golden light.
Free summit weather forecasts for over 20,000 British and Irish hills. Designed for hikers, runners, and climbers who need accurate mountain conditions — not just city weather.
