Churchill
Canada
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Churchill, Canada

The first month of the autumn, September, is still a chilly month in Churchill, Canada, with average temperature varying between 9.5°C (49.1°F) and 3.2°C (37.8°F).

Temperature

In September, the average high-temperature decreases, from a comfortable 16.8°C (62.2°F) in August, to a frosty 9.5°C (49.1°F). The average low-temperature, in Churchill, Canada, is 3.2°C (37.8°F).

Rainfall

In Churchill, it is raining for 14.5 days, with typically 66mm (2.6") of accumulated precipitation. Throughout the year, there are 68.8 rainfall days, and 276mm (10.9") of precipitation is accumulated.

Snowfall

Months with snowfall in Churchill, Canada, are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 2.6 snowfall days, it receives 42mm (1.7") of snow. Throughout the year, there are 92 snowfall days, and 2012mm (79.2") of snow is accumulated.

Sea temperature

In September, the average sea temperature in Churchill, Canada, is 7°C (44.6°F).
Note: Swimming in 7°C (44.6°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In Churchill, the average length of the day is 12.8h.

Sunshine

The average sunshine in Churchill is 3.7h.

UV index

In Churchill, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 3 in September transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in September in Churchill?

In September, in Churchill, the average high-temperature is 9.5°C (49.1°F), and the average low-temperature is 3.2°C (37.8°F).

How much does it rain in Churchill in September?

In Churchill, Canada, during September, the rain falls for 14.5 days and regularly aggregates up to 66mm (2.6") of precipitation.

When does it start to snow in Churchill?

September is the first month it typically snows in Churchill, Canada. Throughout September, in the average 2.6 snowfall days, it receives 42mm (1.7") of snow.

What is the sea water temperature in September in Churchill?

In September, the average sea temperature in Churchill is 7°C (44.6°F). Swimming in 7°C (44.6°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Churchill have in September?

In Churchill, Canada, the average length of the day in September is 12.8h.

How long on average sun shines in September in Churchill?

In Churchill, the average sunshine in September is 3.7h.

How high is the UV index in September in Churchill?

In Churchill, Canada, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.
Average temperature in September - Churchill, Canada
  • Average high temperature in September: 9.5°C

The warmest month (with the highest average high temperature) is July (18°C).
The month with the lowest average high temperature is January (-21.9°C).

  • Average low temperature in September: 3.2°C

The month with the highest average low temperature is August (7.7°C).
The coldest month (with the lowest average low temperature) is January (-30.1°C).

Average rainfall in September - Churchill, Canada
  • Average rainfall in September: 66mm

The wettest month (with the highest rainfall) is August (69.3mm).
Driest months (with the lowest rainfall) are January and February (0mm).

Average rainfall days in September - Churchill, Canada
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is August (14.9 days).
Months with the lowest number of rainy days are January and February (0.1 days).

Average snowfall in September - Churchill, Canada
  • Average snowfall in September: 42mm

The month with the highest snowfall is November (392mm).
Months with the lowest snowfall are July and August (0mm).

Average snowfall days in September - Churchill, Canada
  • Average snowfall days in September: 2.6 days

The month with the highest number of snowfall days is November (15.6 days).
The month with the lowest number of snowfall days is July (0 days).

Average sea temperature in September - Churchill, Canada
  • Average sea temperature in September: 7°C

The best month for swimming (with the highest average sea temperature) is August (8°C).
Coldest months (with the lowest average sea temperature) are January, February, March, April and December (-2°C).

Average daylight in September / Average sunshine in September - Churchill, Canada
  • Average daylight in September: 12.8h

The month with the longest days is June (Average daylight: 18.3h).
The month with shortest days is December (Average daylight: 6.4h).

  • Average sunshine in September: 3.7h

The month with most sunshine is July (Average sunshine: 9.1h).
The month with least sunshine is December (Average sunshine: 1.7h).

Average UV index in September - Churchill, Canada
  • Average UV index in September: 3

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, November and December (UV index 0).