September weather forecast and climate
Cowichan Bay, Canada

Weather in September

September, the first month of the autumn, in Cowichan Bay, is still a comfortable month, with temperature in the range of an average low of 11.8°C (53.2°F) and an average high of 17.2°C (63°F).

Temperature

In September, the average high-temperature marginally drops, from a pleasant 20.2°C (68.4°F) in August, to an enjoyable 17.2°C (63°F). In September, in Cowichan Bay, the average low-temperature is 11.8°C (53.2°F).

Humidity

In September, the average relative humidity in Cowichan Bay is 79%.

Rainfall

In Cowichan Bay, in September, it is raining for 4.9 days, with typically 6mm (0.24") of accumulated precipitation. Throughout the year, 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 is 12.6h.

Sunshine

In Cowichan Bay, the average sunshine in September is 9.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Cowichan Bay?

In Cowichan Bay, Canada, in September, the average high-temperature is 17.2°C (63°F), and the average low-temperature is 11.8°C (53.2°F).

What is the average humidity in September in Cowichan Bay?

In Cowichan Bay, the average relative humidity in September is 79%.

How much does it rain in Cowichan Bay in September?

In September, the rain falls for 4.9 days. Throughout September, 6mm (0.24") of precipitation is accumulated.

When it does not snow in Cowichan Bay?

In Cowichan Bay, Canada, snow does not fall in April through October.

What is the average length of the day in September in Cowichan Bay?

The average length of the day in September in Cowichan Bay is 12.6h.

How long on average sun shines in September in Cowichan Bay?

The average sunshine in September in Cowichan Bay, Canada, is 9.6h.

What is the UV index intensity in September in Cowichan Bay?

In Cowichan Bay, Canada, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in September
Cowichan Bay, Canada

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).

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Average pressure in September
Cowichan Bay, Canada

Average pressure in September - Cowichan Bay, Canada
  • Average pressure in September: 1016.4mbar

Months with the highest atmospheric pressure are January and July (1017.8mbar).
The month with the lowest atmospheric pressure is March (1015.7mbar).

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Average wind speed in September
Cowichan Bay, Canada

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).

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Average humidity in September
Cowichan Bay, Canada

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%).

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Average rainfall in September
Cowichan Bay, Canada

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).

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Average rainfall days in September
Cowichan Bay, Canada

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).

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Average snowfall in September
Cowichan Bay, Canada

Average snowfall in September - Cowichan Bay, Canada
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (53mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in September
Cowichan Bay, Canada

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).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Cowichan Bay, Canada

Average daylight in September / Average sunshine in September - Cowichan Bay, Canada
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 16.1h).
The month with the shortest days is December (Average daylight: 8.4h).

  • Average sunshine in September: 9.6h

The month with the most sunshine is July (Average sunshine: 11.4h).
Months with the least sunshine are January and December (Average sunshine: 4.5).

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Average sunshine days in September
Cowichan Bay, Canada

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).

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Average UV index in September
Cowichan Bay, Canada

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).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Cowichan Bay, Canada

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).
Months with the least cloud cover are July and August (Cloud cover 20).

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Average visibility in September
Cowichan Bay, Canada

Average visibility in September - Cowichan Bay, Canada
  • Average visibility in September: 10km

Months with the highest visibility are March, April, May, June, July, August, September, October and December (10km).
Months with the lowest visibility are January, February and November (9km).

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