Banff
Canada
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Banff, Canada

The last month of the spring, May, is a moderate month in Banff, Canada, with average temperature ranging between max 14.7°C (58.5°F) and min 1.9°C (35.4°F).

Temperature

In May, the average high-temperature increases, from a frosty 9.7°C (49.5°F) in April, to a mild 14.7°C (58.5°F). In Banff, the average low-temperature is 1.9°C (35.4°F).

Humidity

In Banff, the average relative humidity is 40.5%.

Rainfall

In May, the rain falls for 12.9 days. Throughout May, 48.3mm (1.9") of precipitation is accumulated. In Banff, Canada, during the entire year, the rain falls for 86.9 days and collects up to 322.4mm (12.7") of precipitation.

Snowfall

January through December are months with snowfall in Banff.

Daylight

In Banff, the average length of the day is 15.6h.

Sunshine

In Banff, the average sunshine is 6h.

UV index

In May, the average daily maximum UV index in Banff is 6. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays for average individuals.
In May, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in May in Banff?

In Banff, Canada, in May, the average high-temperature is 14.7°C (58.5°F), and the average low-temperature is 1.9°C (35.4°F).

What is the average humidity in May in Banff?

The average relative humidity in May is 40.5%.

How many days does it rain in May in Banff?

In Banff, Canada, in May, during 12.9 rainfall days, 48.3mm (1.9") of precipitation is typically accumulated.

How many days does it snow in May in Banff?

In Banff, Canada, in May, during 3.5 snowfall days, 150mm (5.9") of snow is typically accumulated.

How many hours of daylight does Banff have in May?

In Banff, the average length of the day in May is 15.6h.

How many hours of sunshine does Banff have in May?

The average sunshine in May is 6h.

What is the UV index intensity in May in Banff?

In May, the average daily maximum UV index in Banff, Canada, is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to the Sun's UV rays.
Average temperature in May - Banff, Canada
  • Average high temperature in May: 14.7°C

Warmest months (with the highest average high temperature) are July and August (21.6°C).
The month with the lowest average high temperature is December (-5.2°C).

  • Average low temperature in May: 1.9°C

The month with the highest average low temperature is July (7.3°C).
The coldest month (with the lowest average low temperature) is December (-13.3°C).

Average humidity in May - Banff, Canada
  • Average humidity in May: 40.5%

The month with the highest relative humidity is December (66%).
The month with the lowest relative humidity is June (39.6%).

Average rainfall in May - Banff, Canada
  • Average rainfall in May: 48.3mm

The wettest month (with the highest rainfall) is July (67.8mm).
The driest month (with the lowest rainfall) is December (1.7mm).

Average rainfall days in May - Banff, Canada
  • Average rainfall days in May: 12.9 days

The month with the highest number of rainy days is July (16 days).
Months with the lowest number of rainy days are January and December (0.9 days).

Average snowfall in May - Banff, Canada
  • Average snowfall in May: 150mm

The month with the highest snowfall is November (308mm).
The month with the lowest snowfall is July (1mm).

Average snowfall days in May - Banff, Canada
  • Average snowfall days in May: 3.5 days

The month with the highest number of snowfall days is January (9.4 days).
The month with the lowest number of snowfall days is July (0.1 days).

Average daylight in May / Average sunshine in May - Banff, Canada
  • Average daylight in May: 15.6h

The month with the longest days is June (Average daylight: 16.5h).
The month with shortest days is December (Average daylight: 8h).

  • Average sunshine in May: 6h

The month with most sunshine is July (Average sunshine: 8h).
Months with least sunshine are January, November and December (Average sunshine: 2).

Average UV index in May - Banff, Canada
  • Average UV index in May: 6

The month with the highest UV index is July (UV index 8).
Months with the lowest UV index are January, February, November and December (UV index 1).