September weather forecastStreetsville, Canada
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Streetsville, Canada, with an average temperature ranging between min 14.3°C (57.7°F) and max 21°C (69.8°F).Temperature
September's onset brings a negligible change in high-temperatures, falling from a moderately hot 24.6°C (76.3°F) in August to an agreeable 21°C (69.8°F). In September, Streetsville's temperature tends to fall to an average low of 14.3°C (57.7°F) during the night.Humidity
April, July through September, with an average relative humidity of 75%, are the least humid months.Rainfall
September is the month with the least rainfall in Streetsville. Rain falls for 11.7 days and accumulates 32mm (1.26") of precipitation.Snowfall
June through October are months without snowfall in Streetsville.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:43 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:01 pm EDT.
Sunshine
In Streetsville, the average sunshine in September is 9.3h.UV index
In Streetsville, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Undertake protective steps - Preventing sun damage is advised. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Streetsville, Canada
- Average high temperature in September: 21°C
The warmest month (with the highest average high temperature) is July (25°C).
The month with the lowest average high temperature is January (-2.5°C).
- Average low temperature in September: 14.3°C
The months with the highest average low temperature are July and August (17.7°C).
The coldest month (with the lowest average low temperature) is January (-7.4°C).
Average pressure in September
Streetsville, Canada
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is March (1018.4mbar).
The month with the lowest atmospheric pressure is June (1013.2mbar).
Average wind speed in September
Streetsville, Canada
- Average wind speed in September: 13.4km/h
The windiest month (with the highest average wind speed) is January (19.1km/h).
The calmest month (with the lowest average wind speed) is July (11.5km/h).
Average humidity in September
Streetsville, Canada
- Average humidity in September: 75%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, July, August and September (75%).
Average rainfall in September
Streetsville, Canada
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is May (72mm).
The driest month (with the least rainfall) is September (32mm).
Average rainfall days in September
Streetsville, Canada
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (8.5 days).
Average snowfall in September
Streetsville, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is February (134mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Streetsville, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Streetsville, 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: 9h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Streetsville, Canada
- Average sunshine days in September: 17 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in September
Streetsville, Canada
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Streetsville, Canada
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Streetsville, Canada
- Average visibility in September: 10km
The months with the highest visibility are July, August, September and October (10km).
The months with the lowest visibility are January and February (8km).
