September weather forecast
Whitemouth, Canada

September

Weather in September

September, the first month of the autumn in Whitemouth, is still a refreshing month, with an average temperature fluctuating between 9.8°C (49.6°F) and 18.9°C (66°F).

Temperature

As Whitemouth enters September, the average high-temperature decreases from the a warm 24.5°C (76.1°F) of August to a refreshing 18.9°C (66°F). In September, Whitemouth experiences a temperature dip to an average of 9.8°C (49.6°F) at night.

Humidity

In Whitemouth, the average relative humidity in September is 67%.

Rainfall

In Whitemouth, in September, during 7.6 rainfall days, 21mm (0.83") of precipitation is typically accumulated. In Whitemouth, during the entire year, the rain falls for 73.4 days and collects up to 158mm (6.22") of precipitation.

Snowfall

In Whitemouth, snow does not fall in June through September.

Daylight

The average length of the day in September in Whitemouth is 12h and 35min.
On the first day of the month, sunrise is at 6:40 am and sunset at 8:07 pm. On the last day of September, in Whitemouth, Canada, sunrise is at 7:23 am and sunset at 7:03 pm CDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 4 during September translates into these guidelines:
Ensure safety - Sun damage prevention is strongly urged. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.

Frequently asked questions

What is the average September temperature in Whitemouth?
The high-temperature, in September, in Whitemouth, records 18.9°C (66°F), while the low-temperature is 9.8°C (49.6°F).
What is the average humidity in September in Whitemouth?
In Whitemouth, Canada, the average relative humidity in September is 67%.
How many days does it rain in September in Whitemouth?
In Whitemouth, Canada, in September, it is raining for 7.6 days, with typically 21mm (0.83") of accumulated precipitation.
When it does not snow in Whitemouth?
In Whitemouth, Canada, snow does not fall in June through September.
Does it snow in Whitemouth in September?
In Whitemouth, Canada, in September, it doesn't snow. In October, it regularly snows.
How many hours of daylight does Whitemouth have in September?
In September, the average day length in Whitemouth is 12h and 35min.
When is the sunrise / sunset in September in Whitemouth?
On the first day of September, sunrise is at 6:40 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:03 pm CDT.
How long on average sun shines in September in Whitemouth?
In Whitemouth, the average sunshine duration in September is 8.4h.
What is the UV index reading in September in Whitemouth?
In Whitemouth, Canada, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Whitemouth, Canada
  • Average high temperature in September: 18.9°C

The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (-11.2°C).

  • Average low temperature in September: 9.8°C

The month with the highest average low temperature is July (14.4°C).
The coldest month (with the lowest average low temperature) is January (-18.3°C).

Average pressure in September
Whitemouth, Canada
  • Average pressure in September: 1013.9mbar

The month with the highest atmospheric pressure is February (1020.8mbar).
The month with the lowest atmospheric pressure is June (1010.5mbar).

Average wind speed in September
Whitemouth, Canada
  • Average wind speed in September: 15.2km/h

The windiest month (with the highest average wind speed) is October (15.9km/h).
The calmest month (with the lowest average wind speed) is August (13km/h).

Average humidity in September
Whitemouth, Canada
  • Average humidity in September: 67%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (65%).

Average rainfall in September
Whitemouth, Canada
  • Average rainfall in September: 21mm

The wettest month (with the highest rainfall) is June (28mm).
The driest months (with the least rainfall) are February and December (4mm).

Average rainfall days in September
Whitemouth, Canada
  • Average rainfall days in September: 7.6 days

The month with the highest number of rainy days is June (12.8 days).
The month with the least rainy days is January (1 days).

Average snowfall in September
Whitemouth, Canada
  • Average snowfall in September: 0mm

The month with the highest snowfall is November (28mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Whitemouth, Canada
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Whitemouth, Canada
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

Average sunshine days in September
Whitemouth, Canada
  • Average sunshine days in September: 20.7 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is June (14.3 days).

Average UV index in September
Whitemouth, Canada
  • Average UV index in September: 4

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

Average cloud cover in September
Whitemouth, Canada
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Whitemouth, Canada
  • Average visibility in September: 10km

The months with the highest visibility are May, August and September (10km).
The month with the lowest visibility is January (7km).

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