Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September corresponds with a temperature reduction, down from August's refreshing 16.2°C (61.2°F) to a fresh 10°C (50°F). Lake Louise cools down to an average low-temperature of 0.6°C (33.1°F) throughout the month of September.Humidity
In September, the average relative humidity is 73%.Rainfall
In Lake Louise, in September, during 13.4 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, there are 116.8 rainfall days, and 583mm (22.95") of precipitation is accumulated.Snowfall
Months with snowfall in Lake Louise are January through July, September through December. September is the first month it typically snows. Throughout September, in the average 4.8 snowfall days, it receives 73mm (2.87") of snow. Throughout the year, in Lake Louise, there are 172.5 snowfall days, and 2825mm (111.22") of snow is accumulated.Daylight
In Lake Louise, the average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 6:58 am and sunset at 8:29 pm. On the last day of September, in Lake Louise, sunrise is at 7:45 am and sunset at 7:23 pm MDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In September, the average daily maximum UV index in Lake Louise is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 2 transforms into these recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What are the temperatures in Lake Louise in September?
What is the average humidity in September in Lake Louise?
How many days does it rain in September in Lake Louise?
When does it start snowing in Lake Louise?
How many hours of daylight does Lake Louise have in September?
What time are sunrise and sunset in September in Lake Louise?
How long on average sun shines in September in Lake Louise?
What is the UV index intensity in September in Lake Louise?
Average temperature in September
Lake Louise, Canada
- Average high temperature in September: 10°C
The warmest month (with the highest average high temperature) is August (16.2°C).
The month with the lowest average high temperature is December (-9.3°C).
- Average low temperature in September: 0.6°C
The months with the highest average low temperature are July and August (4.3°C).
The coldest month (with the lowest average low temperature) is February (-18.1°C).
Average pressure in September
Lake Louise, Canada
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is June (1012mbar).
Average wind speed in September
Lake Louise, Canada
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is November (9.2km/h).
The calmest month (with the lowest average wind speed) is May (7km/h).
Average humidity in September
Lake Louise, Canada
- Average humidity in September: 73%
The months with the highest relative humidity are January, February, March and December (94%).
The months with the lowest relative humidity are July and August (63%).
Average rainfall in September
Lake Louise, Canada
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is June (85mm).
The driest month (with the least rainfall) is February (33mm).
Average rainfall days in September
Lake Louise, Canada
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is June (21.4 days).
The month with the least rainy days is January (2.5 days).
Average snowfall in September
Lake Louise, Canada
- Average snowfall in September: 73mm
The month with the highest snowfall is November (431mm).
The month with the least snowfall is August (0mm).
Average snowfall days in September
Lake Louise, Canada
- Average snowfall days in September: 4.8 days
The month with the highest number of snowfall days is March (25.3 days).
The month with the least snowfall days is August (0.2 days).
Average daylight in September /
Average sunshine in September
Lake Louise, Canada
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Lake Louise, Canada
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is August (15.1 days).
The month with the least sunshine days is April (4.7 days).
Average UV index in September
Lake Louise, Canada
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Lake Louise, Canada
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Lake Louise, Canada
- Average visibility in September: 9km
The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are January, February and December (4km).
Lake Louise, Canada
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