Mount Cayley
Mountain Stratovolcano in coastal British Columbia
In British Columbia’s Coast Mountains, Mount Cayley is a volcanic massif reached by experienced climbers and backcountry skiers; visitors approach via forested valleys, glaciers and monitored volcanic terrain.
How to Get to Mount Cayley #
Typical approaches begin from the Squamish-Whistler corridor; follow logging and service roads toward Callaghan Valley and then to designated trailheads. Many approaches require river crossings and bushwhacking; use local guides or current trail reports.
Tips for Visiting Mount Cayley #
- Approach via Squamish or Whistler and then take the Forest Service roads toward Mount Cayley; check road access and washouts with BC Parks.
- Mount Cayley is in a glaciated volcanic complex - crampons and avalanche awareness are essential outside summer.
- This is active volcanic terrain with hot springs nearby; follow local signage and park regulations.
Best Time to Visit Mount Cayley #
Best visited in mid‑ to late summer for the safest glacier conditions and packable approaches; the area is remote and weather‑sensitive.
Weather & Climate near Mount Cayley #
Mount Cayley's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in December). Temperatures range from -12°C to 14°C. Abundant rainfall (1366 mm/year), wettest in November.
January
January is freezing with highs of -3°C and lows of -12°C. Significant rainfall (169 mm).
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February
February is freezing with highs of -1°C and lows of -10°C. Significant rainfall (126 mm).
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March
March is freezing with highs of -1°C and lows of -9°C. Significant rainfall (112 mm).
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April
April is freezing with highs of 1°C and lows of -6°C. Regular rainfall (88 mm).
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May
May is cold with highs of 6°C and lows of -3°C. Regular rainfall (85 mm).
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June
June is cold with highs of 9°C and lows of 0°C. Regular rainfall (91 mm).
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July
July is cold with highs of 13°C and lows of 2°C. Moderate rainfall (70 mm).
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August
August is cold with highs of 14°C and lows of 3°C. Moderate rainfall (69 mm).
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September
September is cold with highs of 11°C and lows of 1°C. Moderate rainfall (70 mm).
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October
October is cold with highs of 6°C and lows of -4°C. Significant rainfall (134 mm).
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November
November is freezing with highs of -1°C and lows of -9°C. The wettest month with heavy rain (184 mm).
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December
December is the coldest month with highs of -4°C and lows of -12°C. Significant rainfall (168 mm).
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