September weather forecastCape Dorset, Canada

September

Weather in September

September, the first month of the autumn in Cape Dorset, is also a wintry month, with an average temperature varying between 4.1°C (39.4°F) and 1.5°C (34.7°F).

Temperature

Cape Dorset, Canada, observes a small decrease in the average high-temperature with the arrival of September, falling from August's chilly 8.6°C (47.5°F) to a cold 4.1°C (39.4°F). Cape Dorset's nighttime temperature in September consistently rests at a still icy 1.5°C (34.7°F).

Humidity

In September, the average relative humidity is 80%.

Rainfall

In September, in Cape Dorset, the rain falls for 11.2 days. Throughout September, 34mm (1.34") of precipitation is accumulated. In Cape Dorset, during the entire year, the rain falls for 65.3 days and collects up to 263mm (10.35") of precipitation.

Snowfall

Months with snowfall in Cape Dorset are January through December. In Cape Dorset, in September, snow falls for 6.3 days, with typically accumulated 31mm (1.22") of snow. In Cape Dorset, during the entire year, snow falls for 150.5 days and aggregates up to 650mm (25.59") of snow.

Sea temperature

In Cape Dorset, in September, the average water temperature is 2°C (35.6°F).
Note: In the activity of swimming, this state poses an instant danger to life. Breathing control is completely lost, impeding any form of clear thinking. Employing a specialized swimsuit is crucial to minimize thermal loss.

Daylight

In September, the average length of the day is 13h and 0min.
On the first day of the month, sunrise is at 5:50 am and sunset at 8:21 pm. On the last day of September, sunrise is at 7:14 am and sunset at 6:37 pm EDT.

Sunshine

In Cape Dorset, the average sunshine in September is 5.5h.

UV index

The months with the lowest UV index are January through May, September through December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 1 during September translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Opt for tightly woven and loose clothing to enhance protection from the Sun. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.

Updated: Feb 5, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature in Cape Dorset, Canada, during September are 4.1°C (39.4°F) and 1.5°C (34.7°F) respectively.

The average relative humidity in September is 80%.

In Cape Dorset, in September, during 11.2 rainfall days, 34mm (1.34") of precipitation is typically accumulated.

In Cape Dorset, in September, snow falls for 6.3 days, with typically accumulated 31mm (1.22") of snow.

In Cape Dorset, Canada, in September, the average water temperature is 2°C (35.6°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

The average day length in September is 13h and 0min.

On the first day of September in Cape Dorset, Canada, sunrise is at 5:50 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 6:37 pm EDT.

The average sunshine duration in September is 5.5h.

The months with the lowest UV index in Cape Dorset, Canada, are January through May, September through December, with an average maximum UV index of 1.

In Cape Dorset, the average daily maximum UV index in September is 1. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

8.6°C

4.1°C

-1.4°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

21.2km/h

24.7km/h

24.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.3

6.3

15.4

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

15.7

12.8

10.2

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Cape Dorset, Canada

Average high temperature in September: 4.1°C

The warmest month (with the highest average high temperature) is July (9.1°C).
The month with the lowest average high temperature is February (-22.3°C).

Average low temperature in September: 1.5°C

The month with the highest average low temperature is August (5.3°C).
The coldest month (with the lowest average low temperature) is February (-26.6°C).

Average pressure in September
Cape Dorset, Canada

Average pressure in September: 1007.6mbar

The month with the highest atmospheric pressure is April (1015mbar).
The month with the lowest atmospheric pressure is September (1007.6mbar).

Average wind speed in September
Cape Dorset, Canada

Average wind speed in September: 23.9km/h

The windiest month (with the highest average wind speed) is September (23.9km/h).
The calmest month (with the lowest average wind speed) is February (15.3km/h).

Average humidity in September
Cape Dorset, Canada

Average humidity in September: 80%

The month with the highest relative humidity is February (97%).
The month with the lowest relative humidity is July (73%).

Average rainfall in September
Cape Dorset, Canada

Average rainfall in September: 34mm

The wettest month (with the highest rainfall) is August (40mm).
The driest month (with the least rainfall) is February (6mm).

Average rainfall days in September
Cape Dorset, Canada

Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is August (12.8 days).
The month with the least rainy days is February (0.7 days).

Average snowfall in September
Cape Dorset, Canada

Average snowfall in September: 31mm

The month with the highest snowfall is November (112mm).
The months with the least snowfall are July and August (1mm).

Average snowfall days in September
Cape Dorset, Canada

Average snowfall days in September: 6.3 days

The month with the highest number of snowfall days is December (20.9 days).
The month with the least snowfall days is July (0.1 days).

Average sea temperature in September
Cape Dorset, Canada

Average sea temperature in September: 2°C

The best month for swimming (with the highest average sea temperature) is August (3°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (-2°C).

Average daylight in September /
Average sunshine in September
Cape Dorset, Canada

Average daylight in September: 13h and 0min

The month with the longest days is June (Average daylight: 20h and 54min).
The month with the shortest days is December (Average daylight: 4h and 18min).

Average sunshine in September: 5h and 30min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 0h and 42min).

Average sunshine days in September
Cape Dorset, Canada

Average sunshine days in September: 12.8 days

The month with the most sunshine days is July (18.3 days).
The month with the least sunshine days is November (6.5 days).

Average UV index in September
Cape Dorset, Canada

Average UV index in September: 1

The months with the highest UV index are June, July and August (UV index 3).
The months with the lowest UV index are January, February, March, April, May, September, October, November and December (UV index 1).