Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A moderate decline in average high-temperatures is noted in September, moving from an agreeable 20.2°C (68.4°F) in August to an enjoyable 17.2°C (63°F). Cowichan Bay throughout September, experiences an average nighttime temperature of 11.8°C (53.2°F).Humidity
The average relative humidity in September is 79%.Rainfall
In Cowichan Bay, Canada, in September, during 4.9 rainfall days, 6mm (0.24") of precipitation is typically accumulated. Throughout the year, in Cowichan Bay, there are 72.5 rainfall days, and 163mm (6.42") of precipitation is accumulated.Snowfall
In Cowichan Bay, snow does not fall in April through October.Daylight
In September, the average length of the day in Cowichan Bay is 12h and 34min.On the first day of September in Cowichan Bay, Canada, sunrise is at 6:32 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:54 pm PDT.
Sunshine
In September, the average sunshine is 9.6h.UV index
In Cowichan Bay, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, a daily UV index of 4 turns into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Cowichan Bay in September?
What is the average humidity in September in Cowichan Bay?
How many days does it rain in September in Cowichan Bay?
When it does not snow in Cowichan Bay?
How many hours of daylight does Cowichan Bay have in September?
When is the sunrise / sunset in September in Cowichan Bay?
How many hours of sunshine does Cowichan Bay have in September?
What is the UV index reading in September in Cowichan Bay?
Average temperature in September
Cowichan Bay, Canada
- Average high temperature in September: 17.2°C
The warmest months (with the highest average high temperature) are July and August (20.2°C).
The month with the lowest average high temperature is December (6.3°C).
- Average low temperature in September: 11.8°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).
Average pressure in September
Cowichan Bay, Canada
- Average pressure in September: 1016.4mbar
The months with the highest atmospheric pressure are January and July (1017.8mbar).
The month with the lowest atmospheric pressure is March (1015.7mbar).
Average wind speed in September
Cowichan Bay, Canada
- Average wind speed in September: 6.8km/h
The windiest month (with the highest average wind speed) is November (11.8km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in September
Cowichan Bay, Canada
- Average humidity in September: 79%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Cowichan Bay, Canada
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is January (37mm).
The driest months (with the least rainfall) are July and August (3mm).
Average rainfall days in September
Cowichan Bay, Canada
- Average rainfall days in September: 4.9 days
The month with the highest number of rainy days is December (8.6 days).
The month with the least rainy days is August (2.3 days).
Average snowfall in September
Cowichan Bay, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is February (53mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Cowichan Bay, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Cowichan Bay, Canada
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).
Average sunshine days in September
Cowichan Bay, Canada
- Average sunshine days in September: 24.2 days
The month with the most sunshine days is August (28.2 days).
The month with the least sunshine days is February (17.4 days).
Average UV index in September
Cowichan Bay, Canada
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Cowichan Bay, Canada
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in September
Cowichan Bay, Canada
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, February and November (9km).
Cowichan Bay, Canada
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