September weather forecast
Mary's Harbour, Canada

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Weather in September

September, the first month of the autumn in Mary's Harbour, is still a cool month, with an average temperature ranging between min 6.8°C (44.2°F) and max 12.1°C (53.8°F).

Temperature

The beginning of September subtly marks a decrease in the average high-temperature, transitioning from an enjoyable 16.3°C (61.3°F) in August to a fresh 12.1°C (53.8°F). The average low-temperature, in September, is a chilly 6.8°C (44.2°F).

Humidity

With an average relative humidity of 78%, September is the least humid month in Mary's Harbour, Canada.

Rainfall

In Mary's Harbour, in September, during 11.2 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, there are 108.4 rainfall days, and 600mm (23.62") of precipitation is accumulated.

Snowfall

In Mary's Harbour, snow does not fall in June through September.

Daylight

In Mary's Harbour, Canada, the average length of the day in September is 12h and 38min.
On the first day of the month, sunrise is at 6:25 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:13 am and sunset at 6:52 pm NDT.

Sunshine

The average sunshine in September is 6.9h.

UV index

In September, the average daily maximum UV index in Mary's Harbour is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 3 in September translates into these instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the average September temperature in Mary's Harbour?

The high-temperature, in September, in Mary's Harbour, is 12.1°C (53.8°F), while the low-temperature averages to 6.8°C (44.2°F).

What is the least humid month in Mary's Harbour?

The least humid month in Mary's Harbour, Canada, is September, with an average relative humidity of 78%.

What is the average humidity in September in Mary's Harbour?

In Mary's Harbour, the average relative humidity in September is 78%.

How many days does it rain in September in Mary's Harbour?

In Mary's Harbour, in September, during 11.2 rainfall days, 37mm (1.46") of precipitation is typically accumulated.

When it does not snow in Mary's Harbour?

In Mary's Harbour, Canada, snow does not fall in June through September.

Does it snow in Mary's Harbour in September?

In Mary's Harbour, Canada, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Mary's Harbour?

In Mary's Harbour, the average day length in September is 12h and 38min.

What time are sunrise and sunset in September in Mary's Harbour?

On the first day of September in Mary's Harbour, sunrise is at 6:25 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:52 pm NDT.

How long on average sun shines in September in Mary's Harbour?

In September, the average sunshine duration in Mary's Harbour is 6.9h.

What is the UV index reading in September in Mary's Harbour?

The average daily maximum UV index in September in Mary's Harbour is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Mary's Harbour, Canada

Average temperature in September - Mary
  • Average high temperature in September: 12.1°C

The warmest month (with the highest average high temperature) is August (16.3°C).
The month with the lowest average high temperature is February (-7.1°C).

  • Average low temperature in September: 6.8°C

The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is February (-14.3°C).

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Average pressure in September
Mary's Harbour, Canada

Average pressure in September - Mary
  • Average pressure in September: 1012.1mbar

The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is January (1005.6mbar).

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Average wind speed in September
Mary's Harbour, Canada

Average wind speed in September - Mary
  • Average wind speed in September: 20.8km/h

The windiest month (with the highest average wind speed) is December (25.5km/h).
The calmest month (with the lowest average wind speed) is August (17.2km/h).

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Average humidity in September
Mary's Harbour, Canada

Average humidity in September - Mary
  • Average humidity in September: 78%

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is September (78%).

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Average rainfall in September
Mary's Harbour, Canada

Average rainfall in September - Mary
  • Average rainfall in September: 37mm

The wettest month (with the highest rainfall) is November (75mm).
The driest month (with the least rainfall) is July (22mm).

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Average rainfall days in September
Mary's Harbour, Canada

Average rainfall days in September - Mary
  • Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is February (4.8 days).

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Average snowfall in September
Mary's Harbour, Canada

Average snowfall in September - Mary
  • Average snowfall in September: 0mm

The month with the highest snowfall is March (160mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in September
Mary's Harbour, Canada

Average snowfall days in September - Mary
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is March (16.9 days).
The months with the least snowfall days are July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Mary's Harbour, Canada

Average daylight in September / Average sunshine in September - Mary
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).

  • Average sunshine in September: 6h and 5min

The month with the most sunshine is August (Average sunshine: 7h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).

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Average sunshine days in September
Mary's Harbour, Canada

Average sunshine days in September - Mary
  • Average sunshine days in September: 18 days

The months with the most sunshine days are July and August (22.6 days).
The month with the least sunshine days is March (8.4 days).

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Average UV index in September
Mary's Harbour, Canada

Average UV index in September - Mary
  • Average UV index in September: 3

The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in September
Mary's Harbour, Canada

Average cloud cover in September - Mary
  • Average cloud cover in September: 50

The month with the most cloud cover is March (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 49).

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Average visibility in September
Mary's Harbour, Canada

Average visibility in September - Mary
  • Average visibility in September: 10km

The month with the highest visibility is September (10km).
The months with the lowest visibility are January, February, March, April and December (8km).

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Mary's Harbour, Canada

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