September weather forecast
Algonquin Park, Canada

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Stunning brown and golden colors of trees in the fall, mirrored in the calm water, with a partial view of the wooden pier in Algonquin Park, Canada
Stunning brown and golden colors of trees in the fall, mirrored in the calm water, with a partial view of the wooden pier in Algonquin Park, Canada

Weather in September

As Algonquin Park transitions to fall in September, the temperatures start to decrease, offering cooler days. Nature gets busy draping the park in colourful fall foliage, setting a picturesque panorama. Despite an incremental rainfall, clear skies dominate the scenario. Outdoor enthusiasts find early September inviting, with ample opportunity for trekking and canoeing. Evenings start getting chilly, reminding visitors of Algonquin's colder months.

Temperature

With the onset of September, Algonquin Park's climate undergoes a slight change as the average high-temperature moves from an agreeable 22.8°C (73°F) in August to a refreshing 18.5°C (65.3°F). Algonquin Park records a consistent low-temperature of 8.2°C (46.8°F) during September nights.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Algonquin Park, during September, the rain falls for 12.8 days and regularly aggregates up to 43mm (1.69") of precipitation. In Algonquin Park, during the entire year, the rain falls for 122.8 days and collects up to 603mm (23.74") of precipitation.

Snowfall

Months with snowfall in Algonquin Park, Canada, are January through June, September through December. September is the first month it typically snows in Algonquin Park, Canada. Throughout September, in the average 0.5 snowfall days, it receives 1mm (0.04") of snow. In Algonquin Park, during the entire year, snow falls for 122.6 days and aggregates up to 1723mm (67.83") of snow.

Daylight

In September, the average length of the day in Algonquin Park is 12h and 31min.
On the first day of the month, sunrise is at 6:36 am and sunset at 7:51 pm. On the last day of September, in Algonquin Park, sunrise is at 7:12 am and sunset at 6:55 pm EDT.

Sunshine

The average sunshine in September is 7.9h.

UV index

In Algonquin Park, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the UV index of 3 transforms into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are September temperatures in Algonquin Park?

September temperatures in Algonquin Park, Canada, vary between a high-temperature of 18.5°C (65.3°F) and a low-temperature of 8.2°C (46.8°F).

What is the average humidity in September in Algonquin Park?

The average relative humidity in September is 80%.

How much does it rain in Algonquin Park in September?

In Algonquin Park, Canada, in September, it is raining for 12.8 days, with typically 43mm (1.69") of accumulated precipitation.

When does it start snowing in Algonquin Park?

September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 1mm (0.04") of snow.

What is the average length of the day in September in Algonquin Park?

In Algonquin Park, Canada, the average day length in September is 12h and 31min.

What time are sunrise and sunset in September in Algonquin Park?

On the first day of September, sunrise is at 6:36 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:55 pm EDT.

How long on average sun shines in September in Algonquin Park?

In Algonquin Park, Canada, the average sunshine duration in September is 7.9h.

How high is the UV index in September in Algonquin Park?

The average daily maximum UV index in September in Algonquin Park, Canada, is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Algonquin Park, Canada

Average temperature in September - Algonquin Park, Canada
  • Average high temperature in September: 18.5°C

The warmest month (with the highest average high temperature) is July (24.5°C).
The month with the lowest average high temperature is January (-7.3°C).

  • Average low temperature in September: 8.2°C

The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is January (-15.3°C).

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Average pressure in September
Algonquin Park, Canada

Average pressure in September - Algonquin Park, Canada
  • Average pressure in September: 1016.8mbar

The month with the highest atmospheric pressure is March (1018.4mbar).
The month with the lowest atmospheric pressure is June (1012.6mbar).

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Average wind speed in September
Algonquin Park, Canada

Average wind speed in September - Algonquin Park, Canada
  • Average wind speed in September: 10.8km/h

The windiest month (with the highest average wind speed) is April (13.5km/h).
The calmest month (with the lowest average wind speed) is August (10.4km/h).

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Average humidity in September
Algonquin Park, Canada

Average humidity in September - Algonquin Park, Canada
  • Average humidity in September: 80%

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is May (72%).

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Average rainfall in September
Algonquin Park, Canada

Average rainfall in September - Algonquin Park, Canada
  • Average rainfall in September: 43mm

The wettest month (with the highest rainfall) is April (71mm).
The driest month (with the least rainfall) is July (34mm).

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Average rainfall days in September
Algonquin Park, Canada

Average rainfall days in September - Algonquin Park, Canada
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is August (15.7 days).
The month with the least rainy days is February (3 days).

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Average snowfall in September
Algonquin Park, Canada

Average snowfall in September - Algonquin Park, Canada
  • Average snowfall in September: 1mm

The month with the highest snowfall is January (318mm).
The months with the least snowfall are July and August (0mm).

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Average snowfall days in September
Algonquin Park, Canada

Average snowfall days in September - Algonquin Park, Canada
  • Average snowfall days in September: 0.5 days

The month with the highest number of snowfall days is January (22.8 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in September /
Average sunshine in September
Algonquin Park, Canada

Average daylight in September / Average sunshine in September - Algonquin Park, Canada
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 1h and 36min).

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Average sunshine days in September
Algonquin Park, Canada

Average sunshine days in September - Algonquin Park, Canada
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is June (16.1 days).
The month with the least sunshine days is February (7 days).

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Average UV index in September
Algonquin Park, Canada

Average UV index in September - Algonquin Park, Canada
  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).

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Average cloud cover in September
Algonquin Park, Canada

Average cloud cover in September - Algonquin Park, Canada
  • Average cloud cover in September: 45

The month with the most cloud cover is February (Cloud cover 84).
The month with the least cloud cover is July (Cloud cover 37).

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Average visibility in September
Algonquin Park, Canada

Average visibility in September - Algonquin Park, Canada
  • Average visibility in September: 8km

The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (6km).

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Algonquin Park, Canada

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