Two valleys, one ski area: Arosa Lenzerheide is the largest linked domain in Graubünden, with 225 kilometres of piste across 117 runs. Vertical reaches 1,636 metres between 1,229 and 2,865 metres, and the grading is relaxed at 49% beginner, 39% intermediate and 12% advanced, with no expert pistes. The Urdenbahn, a pillar-free cable car over the Urden valley, joins the two sides, so a full circuit is realistic in a single day. The scale leaves plenty of room to explore, and the broad, groomed slopes reward anyone who prefers to cover ground at a steady pace.

On the Lenzerheide side, Parpaner Rothorn is the high point and the start of the Silvano Beltrametti World Cup piste, the steepest descent in the area. Arosa Weisshorn, with the Hörnli sector nearby, offers the other main peak and the best-known freeride lines alongside the Rothorn. West of Lenzerheide, the Stätzerhorn and Piz Scalottas sectors provide sunny cruising. Families and intermediates get the most from the network, while keen skiers can chase the Rothorn descents and look into guided off-piste on either mountain. Queues tend to stay short outside peak weeks.

The 2025/26 season at Arosa Lenzerheide operates from 23 November 2025 to 21 April 2026, spanning five months of lift-served skiing. Early-season opening typically focuses on higher sectors around Hörnli and Rothorn before valley connections to Churwalden open by mid-December. Arosa's east-facing bowl often permits November skiing thanks to cold temperatures and aggressive snowmaking, whilst Lenzerheide's west-facing slopes benefit from afternoon sun retention into April. Spring skiing extends to late April on north-facing runs above 2,400 metres.

Annual snowfall averages 439 centimetres on-mountain, with Arosa village recording over seven metres at its 1,775-metre elevation. The resort's altitude span provides natural snow reliability, with 60 per cent of pistes covered by 110 kilometres of snowmaking infrastructure installed progressively between 2016 and 2024. Sections between Parpan and Churwalden received enhanced snowmaking in 2016 to guarantee valley access. Base depth during the 2025/26 season has maintained 90 centimetres mid-winter. The high-alpine environment and dual-valley aspect create microclimates, with Rothorn's northern exposure holding powder longer than sun-soaked Weisshorn runs.

January and February deliver the most consistent snow conditions, with the first week of February historically registering peak accumulation. December offers pre-Christmas value with fewer crowds but variable lower-elevation cover. March combines reliable upper-mountain snow with lengthening daylight and warming temperatures, ideal for spring skiing and terrace sessions. Easter week draws family crowds regardless of calendar date. Weekdays from mid-January to early March provide optimal touring conditions with open lifts, groomed pistes and manageable visitor numbers.

The FIS Ski Cross World Cup visits Arosa in mid-December, staging races on a purpose-built course at Innerarosa beside the historic Bergkirchli church. Night skiing runs every Friday from early January through mid-March on the Stätzerhorn sector, with the 3.5-kilometre floodlit piste accessed via the Proschieri T-bar and Rungg-Stätzertäli chair operating until 10pm. Tour de Ski cross-country stages have been held at Lenzerheide's Nordic facilities. The Arosa Humour Festival in December and Lenzerheide's Enchanted Forest light installation add cultural programming. No summer glacier skiing exists, with lifts closing entirely between late April and early June before reopening for mountain biking season.