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 move into September indicates a reduction in the average high-temperature, down from August's warm 26.1°C (79°F) to an agreeable 20.6°C (69.1°F). Bow Island anticipates an average minimum temperature of 10.4°C (50.7°F) in the month of September.Humidity
In Bow Island, Canada, the average relative humidity in September is 49%.Rainfall
In Bow Island, in September, it is raining for 7.5 days, with typically 18mm (0.71") of accumulated precipitation. Throughout the year, there are 90.9 rainfall days, and 243mm (9.57") of precipitation is accumulated.Snowfall
Months with snowfall in Bow Island are January through May, September through December. September is the first month it typically snows in Bow Island, Canada. Throughout September, in the average 0.4 snowfall days, it receives 8mm (0.31") of snow. Throughout the year, in Bow Island, there are 50.5 snowfall days, and 397mm (15.63") of snow is accumulated.Daylight
In Bow Island, the average length of the day in September is 12h and 35min.On the first day of September, sunrise is at 6:42 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:05 pm MDT.
Sunshine
In Bow Island, the average sunshine in September is 9.7h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What are the temperatures in Bow Island in September?
What is the average humidity in September in Bow Island?
How much does it rain in Bow Island in September?
When does it start to snow in Bow Island?
How many hours of daylight does Bow Island have in September?
What time are sunrise and sunset in September in Bow Island?
How many hours of sunshine does Bow Island have in September?
How high is the UV index in September in Bow Island?
Average temperature in September
Bow Island, Canada
- Average high temperature in September: 20.6°C
The warmest month (with the highest average high temperature) is July (26.6°C).
The month with the lowest average high temperature is December (-4.3°C).
- Average low temperature in September: 10.4°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is February (-11.2°C).
Average pressure in September
Bow Island, Canada
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is February (1020mbar).
The month with the lowest atmospheric pressure is June (1010.1mbar).
Average wind speed in September
Bow Island, Canada
- Average wind speed in September: 14.4km/h
The windiest month (with the highest average wind speed) is January (16.5km/h).
The calmest month (with the lowest average wind speed) is August (13.2km/h).
Average humidity in September
Bow Island, Canada
- Average humidity in September: 49%
The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is August (46%).
Average rainfall in September
Bow Island, Canada
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is June (59mm).
The driest month (with the least rainfall) is January (6mm).
Average rainfall days in September
Bow Island, Canada
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Bow Island, Canada
- Average snowfall in September: 8mm
The month with the highest snowfall is November (74mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Bow Island, Canada
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is December (9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Bow Island, Canada
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).
Average sunshine days in September
Bow Island, Canada
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Bow Island, Canada
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Bow Island, Canada
- Average cloud cover in September: 25
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in September
Bow Island, Canada
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).
Bow Island, Canada
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