World Resorts Canada Banff Weather

Banff weather in May

Weather in Banff: May

Average day temperature: 48.7°F
Average night temperature: 32.6°F
Number of sunny days: 6 days
Day length: 14.9 - 16.2 hours
Number of rainy days: 2 days
Precipitation totals: 1.6 in.

Air temperature in May, °F

Show year:
2025
2024
2023

The highest day temperature during May of 2025 was 68°F. At the same time the lowest night temperature was 14°F. Daily and nightly averages during May were 50.5°F and 27.2°F.

Sunny, partly cloudy and cloudy days

Mostly all days in May are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in May, in.

Precipitation total value in Banff in May is 1.6 in. Other months of the year show relatively similar values.

Wind speed in May, mph

The average wind speed value in May is 3.8 mph The wind's strength is relatively same during the whole year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 6.6.

Best time for vacation in Banff

Sunniest months:
August 16 days
July 15 days
September 15 days
Warmest months:
July 67.0 °F
August 65.2 °F
September 58.4 °F
Coldest months:
December 17.8 °F
January 18.0 °F
February 19.0 °F
Rainiest months:
June 4 days
July 3 days
August 3 days
Windiest months:
December 4.6 mph
November 4.5 mph
October 4.5 mph

Banff on a weather map

Banff
+30°F
E 5 mph
Feels like: +25°F
Precip.: 0%
Places in Canada:
Name
°F
+41°F
+45°F
+12°F
+12°F
-8°F
+7°F
-2°F
+3°F
+12°F
-6°F
+25°F
+36°F
+21°F
+16°F
24 Hours Forecast
Banff
Local time: 03:05
December 05, friday
0600
28°F
NE
5 mph
0900
27°F
NE
6 mph
1200
27°F
NE
6 mph
1500
27°F
NE
4 mph
1800
18°F
NE
3 mph
2100
12°F
NE
2 mph
December 06, saturday
0000
10°F
NE
1 mph
0300
10°F
E
2 mph
Units of measurement: °C / °F