September weather forecastEureka, Canada
September
Weather in September
September, the first month of the autumn in Eureka, is also a subzero cold month, with an average temperature ranging between max -5.8°C (21.6°F) and min -9.3°C (15.3°F).Temperature
Eureka in September showcases a distinct temperature shift, moving from an average high of a cold 4.3°C (39.7°F) in August to a freezing cold -5.8°C (21.6°F). Eureka, in September, logs an average low-temperature of -9.3°C (15.3°F), a subtle step down from daytime readings.Humidity
The average relative humidity in September in Eureka is 88%.Rainfall
In September, in Eureka, the rain falls for 1.3 days. Throughout September, 6mm (0.24") of precipitation is accumulated. Throughout the year, in Eureka, there are 18.3 rainfall days, and 62mm (2.44") of precipitation is accumulated.Snowfall
January through December are months with snowfall in Eureka. In Eureka, in September, during 8.1 snowfall days, 45mm (1.77") of snow is typically accumulated. Throughout the year, there are 119 snowfall days, and 380mm (14.96") of snow is accumulated.Daylight
The month with the longest days is September, with an average of 14h and 54min of daylight.On the first day of the month, sunrise is at 2:40 am and sunset at 10:46 pm. On the last day of September, in Eureka, sunrise is at 7:26 am and sunset at 5:40 pm CDT.
Sunshine
The month with the most sunshine is September, with an average of 5.2h of sunshine.UV index
January through March, May, September through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 1 in September translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Experience reduced UV exposure by about half when donning a wide-brim hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Eureka, Canada
- Average high temperature in September: -5.8°C
The warmest month (with the highest average high temperature) is July (9.2°C).
The month with the lowest average high temperature is February (-29.8°C).
- Average low temperature in September: -9.3°C
The month with the highest average low temperature is July (5.6°C).
The coldest month (with the lowest average low temperature) is February (-34.8°C).
Average pressure in September
Eureka, Canada
- Average pressure in September: 1009.6mbar
The month with the highest atmospheric pressure is May (1018.5mbar).
The month with the lowest atmospheric pressure is September (1009.6mbar).
Average wind speed in September
Eureka, Canada
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is June (13.2km/h).
The calmest months (with the lowest average wind speed) are October and November (8.8km/h).
Average humidity in September
Eureka, Canada
- Average humidity in September: 88%
The month with the highest relative humidity is February (98%).
The month with the lowest relative humidity is July (61%).
Average rainfall in September
Eureka, Canada
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is August (10mm).
The driest months (with the least rainfall) are May and July (3mm).
Average rainfall days in September
Eureka, Canada
- Average rainfall days in September: 1.3 days
The month with the highest number of rainy days is August (4.4 days).
The month with the least rainy days is October (0.2 days).
Average snowfall in September
Eureka, Canada
- Average snowfall in September: 45mm
The month with the highest snowfall is October (55mm).
The month with the least snowfall is July (3mm).
Average snowfall days in September
Eureka, Canada
- Average snowfall days in September: 8.1 days
The month with the highest number of snowfall days is February (15.8 days).
The month with the least snowfall days is July (0.3 days).
Average daylight in September /
Average sunshine in September
Eureka, Canada
- Average daylight in September: 14h and 54min
The month with the longest days is September (Average daylight: 14h and 54min).
The months with the shortest days are January, May, June, July, November and December (Average daylight: 0h and 0min).
- Average sunshine in September: 5h and 12min
The month with the most sunshine is September (Average sunshine: 5h and 12min).
The month with the least sunshine is January (Average sunshine: 0h and 12min).
Average sunshine days in September
Eureka, Canada
- Average sunshine days in September: 21.8 days
The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is February (15.9 days).
Average UV index in September
Eureka, Canada
- Average UV index in September: 1
The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are January, February, March, May, September, October, November and December (UV index 1).
Average cloud cover in September
Eureka, Canada
- Average cloud cover in September: 69
The month with the most cloud cover is February (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 45).
Average visibility in September
Eureka, Canada
- Average visibility in September: 8km
The months with the highest visibility are June and July (10km).
The months with the lowest visibility are January and February (4km).





