Home › Weather › Banff Weather In May
Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the True North Brief Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
May in Banff brings average highs of 14°C to 18°C and lows near 1°C, with roughly 60 mm of precipitation over 10–12 days. As the live forecast above shows, conditions shift rapidly from spring snow to mild sunshine, making layers essential for any outing.
What is the typical temperature range in Banff during May?
Daytime highs climb from about 12°C early in the month to 18°C by late May, while overnight lows hover near freezing. Snowfall is still possible, especially in the first two weeks, but the snowline retreats to higher elevations as the month progresses. For comparison, Calgary Weather runs a few degrees warmer due to its lower elevation.
How much rain or snow can I expect?
May is one of Banff’s wetter months, averaging 50–70 mm of total precipitation. Rain is more common than snow by mid-month, though higher trails may hold snowpack into early June. Pack a waterproof jacket and sturdy footwear for muddy or slushy conditions.
Is Banff worth visiting in May?
Yes, if you want fewer crowds and lower accommodation rates than summer. Trails below treeline are often passable, and wildlife viewing is excellent. Expect variable weather—pack for both rain and sun.
What should I wear for Banff weather in May?
Layers are key: a thermal base, fleece or sweater, and a waterproof outer shell. Bring a warm hat and gloves for early mornings, plus hiking boots with good grip for wet or snowy sections.
How does Banff weather in May compare to Banff in June?
June is warmer (highs 18–22°C) and wetter, with more rain and less snow. Snowpack on high trails melts faster in June, opening more routes. For details, see our Canada weather hub for seasonal comparisons.