September weather forecastSenneville, Canada
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Senneville, Canada, with an average temperature fluctuating between 11.1°C (52°F) and 20.5°C (68.9°F).Temperature
The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a moderately hot 24.4°C (75.9°F) in August to an agreeable 20.5°C (68.9°F). Senneville sees an average low-temperature of 11.1°C (52°F) during September.Humidity
In Senneville, the average relative humidity in September is 78%.Rainfall
In Senneville, during September, the rain falls for 11.4 days and regularly aggregates up to 50mm (1.97") of precipitation. Throughout the year, there are 138.5 rainfall days, and 712mm (28.03") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Senneville, Canada, the average length of the day in September is 12h and 31min.On the first day of September in Senneville, sunrise is at 6:18 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:37 pm EDT.
Sunshine
The average sunshine in September in Senneville is 8.6h.UV index
In September, the average daily maximum UV index in Senneville is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Senneville, Canada
- Average high temperature in September: 20.5°C
The warmest month (with the highest average high temperature) is July (25.2°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is July (15.7°C).
The coldest month (with the lowest average low temperature) is January (-13.1°C).
Average pressure in September
Senneville, Canada
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1012.4mbar).
Average wind speed in September
Senneville, Canada
- Average wind speed in September: 11km/h
The windiest month (with the highest average wind speed) is February (14.7km/h).
The calmest months (with the lowest average wind speed) are July and August (10.9km/h).
Average humidity in September
Senneville, Canada
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (90%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in September
Senneville, Canada
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is May (75mm).
The driest month (with the least rainfall) is November (48mm).
Average rainfall days in September
Senneville, Canada
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Senneville, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is February (208mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Senneville, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Senneville, Canada
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in September
Senneville, Canada
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (12.2 days).
Average UV index in September
Senneville, Canada
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Senneville, Canada
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Senneville, Canada
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February, March and December (8km).
