September weather forecastYamaska, Canada
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Yamaska, Canada, with an average temperature ranging between min 10.3°C (50.5°F) and max 19.9°C (67.8°F).Temperature
September's arrival aligns with a minor decrease in average high-temperatures, from August's warm 24.1°C (75.4°F) to an enjoyable 19.9°C (67.8°F). Nighttime temperatures in September average to a fresh 10.3°C (50.5°F).Humidity
In September, the average relative humidity is 78%.Rainfall
In Yamaska, in September, during 12.5 rainfall days, 54mm (2.13") of precipitation is typically accumulated. In Yamaska, during the entire year, the rain falls for 147.4 days and collects up to 765mm (30.12") of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 32min.On the first day of September in Yamaska, sunrise is at 6:13 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:33 pm EDT.
Sunshine
In Yamaska, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Yamaska is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Yamaska, Canada
- Average high temperature in September: 19.9°C
The warmest month (with the highest average high temperature) is July (25°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in September: 10.3°C
The month with the highest average low temperature is July (14.8°C).
The coldest month (with the lowest average low temperature) is January (-13.9°C).
Average pressure in September
Yamaska, Canada
- Average pressure in September: 1016.9mbar
The months with the highest atmospheric pressure are March and November (1017.5mbar).
The month with the lowest atmospheric pressure is June (1012.2mbar).
Average wind speed in September
Yamaska, Canada
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is April (13.4km/h).
The calmest month (with the lowest average wind speed) is August (10.4km/h).
Average humidity in September
Yamaska, Canada
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Yamaska, Canada
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is April (76mm).
The driest month (with the least rainfall) is March (53mm).
Average rainfall days in September
Yamaska, Canada
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in September
Yamaska, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (247mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Yamaska, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Yamaska, Canada
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in September
Yamaska, Canada
- Average sunshine days in September: 15.9 days
The months with the most sunshine days are September and November (15.9 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Yamaska, 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 and December (UV index 1).
Average cloud cover in September
Yamaska, Canada
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Yamaska, 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 and February (7km).
