September weather forecastSioux Lookout, Canada
September
Weather in September
September, the first month of the autumn in Sioux Lookout, is also an enjoyable month, with temperature in the range of an average high of 17.2°C (63°F) and an average low of 7.8°C (46°F).Temperature
In September, the meteorological conditions alter, with the average high-temperature shifting from a moderately hot 23.2°C (73.8°F) in August to an enjoyable 17.2°C (63°F). Sioux Lookout's average low-temperature is measured at a chilly 7.8°C (46°F) during September.Humidity
In September, the average relative humidity is 75%.Rainfall
In September, in Sioux Lookout, the rain falls for 13.2 days. Throughout September, 57mm (2.24") of precipitation is accumulated. Throughout the year, in Sioux Lookout, there are 108.7 rainfall days, and 530mm (20.87") of precipitation is accumulated.Snowfall
Months with snowfall in Sioux Lookout are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.7 snowfall days, it receives 5mm (0.2") of snow. Throughout the year, in Sioux Lookout, Canada, there are 126.5 snowfall days, and 1300mm (51.18") of snow is accumulated.Daylight
In September, the average length of the day in Sioux Lookout is 12h and 35min.On the first day of September, sunrise is at 6:23 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:47 pm CDT.
Sunshine
In Sioux Lookout, the average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index in Sioux Lookout is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sioux Lookout, Canada
- Average high temperature in September: 17.2°C
The warmest month (with the highest average high temperature) is July (24.5°C).
The month with the lowest average high temperature is January (-12.3°C).
- Average low temperature in September: 7.8°C
The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is January (-20.2°C).
Average pressure in September
Sioux Lookout, Canada
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is February (1020mbar).
The month with the lowest atmospheric pressure is June (1011.5mbar).
Average wind speed in September
Sioux Lookout, Canada
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is October (11.7km/h).
The calmest months (with the lowest average wind speed) are August and December (10.5km/h).
Average humidity in September
Sioux Lookout, Canada
- Average humidity in September: 75%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is May (65%).
Average rainfall in September
Sioux Lookout, Canada
- Average rainfall in September: 57mm
The wettest month (with the highest rainfall) is June (74mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days in September
Sioux Lookout, Canada
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (1.2 days).
Average snowfall in September
Sioux Lookout, Canada
- Average snowfall in September: 5mm
The month with the highest snowfall is March (227mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Sioux Lookout, Canada
- Average snowfall days in September: 0.7 days
The month with the highest number of snowfall days is January (21.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Sioux Lookout, Canada
- Average daylight in September: 12h and 36min
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 6min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 6min).
Average sunshine days in September
Sioux Lookout, Canada
- Average sunshine days in September: 15 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is March (8.3 days).
Average UV index in September
Sioux Lookout, Canada
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Sioux Lookout, Canada
- Average cloud cover in September: 46
The month with the most cloud cover is January (Cloud cover 89).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in September
Sioux Lookout, Canada
- Average visibility in September: 9km
The months with the highest visibility are May, June, July, August and September (9km).
The months with the lowest visibility are January and February (5km).
