September weather forecastMcMasterville, Canada
September
Weather in September
The first month of the autumn, September, is still a pleasant month in McMasterville, Canada, with an average temperature varying between 11.4°C (52.5°F) and 20.7°C (69.3°F).Temperature
McMasterville's progression into September involves a gentle drop in the average high-temperature, from a warm 24.7°C (76.5°F) in August to an agreeable 20.7°C (69.3°F). During September, McMasterville's temperature falls to a steady low-temperature average of 11.4°C (52.5°F).Humidity
In September, the average relative humidity is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 56mm (2.2") of precipitation.Snowfall
June through September are months without snowfall in McMasterville.Daylight
The average length of the day in September is 12h and 31min.On the first day of September in McMasterville, sunrise is at 6:15 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:34 pm EDT.
Sunshine
The average sunshine in September in McMasterville is 8.4h.UV index
In September, the average daily maximum UV index in McMasterville is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily UV index of 3 turns into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
McMasterville, Canada
- Average high temperature in September: 20.7°C
The warmest month (with the highest average high temperature) is July (25.8°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is July (15.9°C).
The coldest month (with the lowest average low temperature) is January (-13°C).
Average pressure in September
McMasterville, Canada
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is November (1017.8mbar).
The month with the lowest atmospheric pressure is June (1012.4mbar).
Average wind speed in September
McMasterville, Canada
- Average wind speed in September: 11km/h
The windiest months (with the highest average wind speed) are February and April (14.2km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in September
McMasterville, Canada
- Average humidity in September: 76%
The months with the highest relative humidity are January and February (90%).
The months with the lowest relative humidity are April and May (74%).
Average rainfall in September
McMasterville, Canada
- Average rainfall in September: 56mm
The wettest month (with the highest rainfall) is May (86mm).
The driest month (with the least rainfall) is September (56mm).
Average rainfall days in September
McMasterville, Canada
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in September
McMasterville, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (295mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
McMasterville, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
McMasterville, 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 24min
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 42min).
Average sunshine days in September
McMasterville, Canada
- Average sunshine days in September: 16 days
The month with the most sunshine days is September (16 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in September
McMasterville, Canada
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
McMasterville, Canada
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
McMasterville, 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).
