September weather forecastTerrace, Canada
September
Weather in September
September, the first month of the autumn in Terrace, is still a refreshing month, with an average temperature fluctuating between 4.3°C (39.7°F) and 14°C (57.2°F).Temperature
The beginning of September subtly marks a decrease in the average high-temperature, transitioning from an enjoyable 18.4°C (65.1°F) in August to a mild 14°C (57.2°F). September witnesses an average nighttime temperature of 4.3°C (39.7°F).Humidity
In Terrace, the average relative humidity in September is 82%.Rainfall
In Terrace, in September, it is raining for 18.7 days, with typically 71mm (2.8") of accumulated precipitation. In Terrace, during the entire year, the rain falls for 187.8 days and collects up to 860mm (33.86") of precipitation.Snowfall
In Terrace, Canada, snow does not fall in June through September.Daylight
In Terrace, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 6:43 am and sunset at 8:24 pm. On the last day of September, sunrise is at 7:36 am and sunset at 7:11 pm PDT.
Sunshine
In September, the average sunshine is 7.9h.UV index
In September, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 2 during September translates into the following directions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Terrace, Canada
- Average high temperature in September: 14°C
The warmest month (with the highest average high temperature) is July (18.6°C).
The month with the lowest average high temperature is December (-2.4°C).
- Average low temperature in September: 4.3°C
The months with the highest average low temperature are July and August (7°C).
The coldest month (with the lowest average low temperature) is December (-7.7°C).
Average pressure in September
Terrace, Canada
- Average pressure in September: 1014.5mbar
The month with the highest atmospheric pressure is July (1017.1mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed in September
Terrace, Canada
- Average wind speed in September: 5.7km/h
The windiest month (with the highest average wind speed) is January (7.9km/h).
The calmest month (with the lowest average wind speed) is August (5.2km/h).
Average humidity in September
Terrace, Canada
- Average humidity in September: 82%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Terrace, Canada
- Average rainfall in September: 71mm
The wettest month (with the highest rainfall) is November (128mm).
The driest month (with the least rainfall) is May (31mm).
Average rainfall days in September
Terrace, Canada
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is October (19.3 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in September
Terrace, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (452mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Terrace, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Terrace, Canada
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Terrace, Canada
- Average sunshine days in September: 9.6 days
The month with the most sunshine days is March (13.4 days).
The month with the least sunshine days is November (7.3 days).
Average UV index in September
Terrace, Canada
- Average UV index in September: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, October, November and December (UV index 1).
Average cloud cover in September
Terrace, Canada
- Average cloud cover in September: 47
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is May (Cloud cover 41).
Average visibility in September
Terrace, Canada
- Average visibility in September: 7km
The months with the highest visibility are April, May, June, July and August (8km).
The month with the lowest visibility is January (6km).





