September weather forecastKitchener, Canada
September
Weather in September
September witnesses a considerable drop in temperature, signaling the beginning of autumn. The mercury dips to 20.8°C (69.4°F) during the day, introducing a comfortable chill in the air. The declining temperature pairs well with the increasing wind speed, bringing a noticeable coolness in the weather. Despite the drop in temperatures, the sunshine duration decreases by only 1.4 hours from August offering respite. Lawn lovers would note the significant drop in rainfall, leading to dry conditions ideal for outdoor lawn activities.Temperature
The arrival of September in Kitchener signals a subtle shift in temperature, down from a moderately hot 24°C (75.2°F) in August to a pleasant 20.8°C (69.4°F). Throughout September nights, Kitchener experiences a consistent temperature average of 10.9°C (51.6°F).Humidity
In September, the average relative humidity is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.2 days and typically collects 37mm (1.46") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Kitchener is 12h and 29min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:56 pm. On the last day of September, in Kitchener, sunrise is at 7:19 am and sunset at 7:04 pm EDT.
Sunshine
In Kitchener, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Kitchener is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 3 during September translates into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kitchener, Canada
- Average high temperature in September: 20.8°C
The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (-3.7°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is July (15°C).
The coldest month (with the lowest average low temperature) is January (-9.3°C).
Average pressure in September
Kitchener, Canada
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is March (1018.5mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).
Average wind speed in September
Kitchener, Canada
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is January (18.1km/h).
The calmest month (with the lowest average wind speed) is July (11km/h).
Average humidity in September
Kitchener, Canada
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Kitchener, Canada
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is October (71mm).
The driest month (with the least rainfall) is September (37mm).
Average rainfall days in September
Kitchener, Canada
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in September
Kitchener, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is February (164mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Kitchener, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kitchener, Canada
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in September
Kitchener, Canada
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is September (13.9 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in September
Kitchener, Canada
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Kitchener, Canada
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Kitchener, Canada
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July and October (9km).
The month with the lowest visibility is January (7km).








