September weather forecast
Iqaluit, Canada

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Weather in September

September in Iqaluit, Canada marks the end of the brief summer season with a noticeable dip in temperatures and the average high settling at 5.2°C (41.4°F). The commencement of autumn brings a change in the colors of the leaves and signals the inevitable return of the cold. Rainfall remains a part of the weather pattern, but it begins to decrease, averaging at 42mm (1.65"). Residents and tourists appreciate the mild but changing weather with outdoor barbecues and outdoor excursions. As the month progresses, it becomes evident that the cold is creeping back, manipulating the landscape once more.

Temperature

With September's arrival, Iqaluit, Canada, sees a decrease in average high-temperatures, moving from a cool 10.5°C (50.9°F) in August to an icy 5.2°C (41.4°F). During September, Iqaluit records a consistent average nighttime temperature of -0.1°C (31.8°F).

Humidity

The average relative humidity in September in Iqaluit is 75.6%.

Rainfall

In Iqaluit, during September, the rain falls for 10.6 days and regularly aggregates up to 42mm (1.65") of precipitation. Throughout the year, in Iqaluit, there are 51.7 rainfall days, and 197mm (7.76") of precipitation is accumulated.

Snowfall

January through June, August through December are months with snowfall. In Iqaluit, in September, during 7.2 snowfall days, 132mm (5.2") of snow is typically accumulated. In Iqaluit, Canada, during the entire year, snow falls for 113.4 days and aggregates up to 2293mm (90.28") of snow.

Sea temperature

In September, the average sea temperature in Iqaluit is 2°C (35.6°F).
Note: In the sport of swimming, this scenario is extremely cold, treacherous, and fatal. If not protected by insulated waterproof clothing, hypothermia ensues quickly.

Daylight

In September, the average length of the day is 12h and 59min.
On the first day of the month, sunrise is at 5:20 am and sunset at 7:47 pm. On the last day of September, sunrise is at 6:41 am and sunset at 6:05 pm EDT.

Sunshine

The average sunshine in September is 2.9h.

UV index

The average daily maximum UV index in September in Iqaluit is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 2 in September translates into these instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

Is September cold in Iqaluit?

The average high-temperature and low-temperature during September are 5.2°C (41.4°F) and -0.1°C (31.8°F) respectively.

What is the average humidity in September in Iqaluit?

In September, the average relative humidity in Iqaluit, Canada, is 75.6%.

How much does it rain in Iqaluit in September?

In September, the rain falls for 10.6 days. Throughout September, 42mm (1.65") of precipitation is accumulated.

How many days does it snow in September in Iqaluit?

In Iqaluit, in September, snow falls for 7.2 days, with typically accumulated 132mm (5.2") of snow.

How cold is the water in September in Iqaluit?

In Iqaluit, the average seawater temperature in September is 2°C (35.6°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the average length of the day in September in Iqaluit?

In September, the average day length in Iqaluit is 12h and 59min.

When is the sunrise / sunset in September in Iqaluit?

In September, on the first day of the month, sunrise is at 5:20 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:05 pm EDT.

How many hours of sunshine does Iqaluit have in September?

In Iqaluit, the average sunshine duration in September is 2.9h.

What is the UV index intensity in September in Iqaluit?

The average daily maximum UV index in September in Iqaluit, Canada, is 2. A UV Index reading of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Iqaluit, Canada

Average temperature in September - Iqaluit, Canada
  • Average high temperature in September: 5.2°C

The warmest month (with the highest average high temperature) is July (12.3°C).
The month with the lowest average high temperature is February (-23.3°C).

  • Average low temperature in September: -0.1°C

The month with the highest average low temperature is July (4.1°C).
The coldest month (with the lowest average low temperature) is February (-31.7°C).

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Average humidity in September
Iqaluit, Canada

Average humidity in September - Iqaluit, Canada
  • Average humidity in September: 75.6%

The month with the highest relative humidity is October (78.1%).
The month with the lowest relative humidity is February (64.6%).

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Average rainfall in September
Iqaluit, Canada

Average rainfall in September - Iqaluit, Canada
  • Average rainfall in September: 42.2mm

The wettest month (with the highest rainfall) is August (68.6mm).
The driest months (with the least rainfall) are January, February, March and December (0mm).

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Average rainfall days in September
Iqaluit, Canada

Average rainfall days in September - Iqaluit, Canada
  • Average rainfall days in September: 10.6 days

The month with the highest number of rainy days is August (16.7 days).
The months with the least rainy days are January, March and December (0 days).

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Average snowfall in September
Iqaluit, Canada

Average snowfall in September - Iqaluit, Canada
  • Average snowfall in September: 132mm

The month with the highest snowfall is April (315mm).
The month with the least snowfall is July (0mm).

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Average snowfall days in September
Iqaluit, Canada

Average snowfall days in September - Iqaluit, Canada
  • Average snowfall days in September: 7.2 days

The month with the highest number of snowfall days is November (13.8 days).
The month with the least snowfall days is July (0.1 days).

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Average sea temperature in September
Iqaluit, Canada

Average sea temperature in September - Iqaluit, 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 and March (-2°C).

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Average daylight in September /
Average sunshine in September
Iqaluit, Canada

Average daylight in September / Average sunshine in September - Iqaluit, Canada
  • Average daylight in September: 13h and 0min

The month with the longest days is June (Average daylight: 20h and 36min).
The month with the shortest days is December (Average daylight: 4h and 36min).

  • Average sunshine in September: 2h and 5min

The month with the most sunshine is July (Average sunshine: 7h and 36min).
The month with the least sunshine is December (Average sunshine: 0h and 24min).

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Average UV index in September
Iqaluit, Canada

Average UV index in September - Iqaluit, Canada
  • Average UV index in September: 2

The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 0).

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Iqaluit, Canada

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