CanadaThe weather in September in Alert
It's cold in September in Alert with an average temperature of -4°C. Temperatures this month range from a low of -7°C to a high of 1°C. At night, you can expect temperatures between -13°C and -3°C.
Looking for sun? September isn’t a good month to be in Alert. There’s too much chance of rain this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Alert, Canada. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 6°C in 2023, Alert reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was -16°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of -21°C to a highest value of -0°C.
Precipitation and snowfall
In September, there is an average of 213 mm of precipitation, spread over 18 days. Of the total precipitation, about 39 cm falls as snow in September. The wind speed is around 4 Bft, mostly coming from the West.
Daily weather in September for Alert
Click on any day in September to get detailed info about the usual weather on that day in Alert. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Alert | New York | |
|---|---|---|
| Average temperature | -4°C | 27°C |
| Max. temperature | 1°C | 31°C |
| Min. temperature | -13°C | -5°C |
| Total precipitation | 213 mm | 57 mm |
| Rainy days | 18 days | 9 days |
| Total snowfall | 39 cm | 0 cm |
| Snowy days | 18 days | 0 days |
Start of September
The month of September starts in Alert with really cold temps, averaging around -0°C during the day and nights dipping to about -4°C.
Mid September
By mid-September, daytime temps drop to around -4°C, with nights around -9°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Alert is around -6°C, while nighttime temps are about -10°C. A shower might pop up, but overall, the weather will be dry and sunny.
UV index
The UV index is a maximum of 2 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.
Check out the climate of Alert for all months and discover the best travel time
Curious about the weather in other parts of Canada? Check out the climate and weather for spots like Vancouver, Toronto, Niagara Falls, or explore other destinations in Canada.
Temperature charts
These charts show the average temperatures in September in Alert, Canada. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Alert
Temperature in September in Alert over the years
Precipitation charts
These charts show the average amount of precipitation in September in Alert, Canada. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Alert
Total precipitation in September in Alert over the years
Daily Snowfall in September in Alert
Snowfall in September in Alert per year
Daily UV index in September in Alert
This chart shows the average daily UV index in September in Alert, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Alert
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Average weather in Alert by month
Click on a month below to see detailed weather info for Alert. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.