Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September entails a temperature shift, as the average high-temperature decreases from an enjoyable 18.1°C (64.6°F) in August to a cool 12°C (53.6°F). During September, the nighttime temperature in Watson Lake averages to an icy 3°C (37.4°F).Humidity
In Watson Lake, the average relative humidity in September is 71%.Rainfall
In Watson Lake, Canada, in September, it is raining for 11.4 days, with typically 21mm (0.83") of accumulated precipitation. In Watson Lake, during the entire year, the rain falls for 89.6 days and collects up to 232mm (9.13") of precipitation.Snowfall
January through May, August through December are months with snowfall in Watson Lake. In September, it is snowing for 1.5 days. Throughout September, 12mm (0.47") of snow is accumulated. In Watson Lake, Canada, during the entire year, snow falls for 94 days and aggregates up to 666mm (26.22") of snow.Daylight
The average length of the day in September in Watson Lake is 12h and 50min.On the first day of September, sunrise is at 6:32 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:08 pm PDT.
Sunshine
In Watson Lake, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 2 in September transforms into the following instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Experience reduced UV exposure by about half when donning a wide-brim hat. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
What is the average September temperature in Watson Lake?
What is the average humidity in September in Watson Lake?
How many days does it rain in September in Watson Lake?
How many days does it snow in September in Watson Lake?
What is the average length of the day in September in Watson Lake?
When is the sunrise / sunset in September in Watson Lake?
How many hours of sunshine does Watson Lake have in September?
What is the UV index intensity in September in Watson Lake?
Average temperature in September
Watson Lake, Canada
- Average high temperature in September: 12°C
The warmest month (with the highest average high temperature) is July (20.6°C).
The month with the lowest average high temperature is December (-13°C).
- Average low temperature in September: 3°C
The month with the highest average low temperature is July (9.2°C).
The coldest month (with the lowest average low temperature) is February (-20.2°C).
Average pressure in September
Watson Lake, Canada
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is February (1018.5mbar).
The month with the lowest atmospheric pressure is June (1010.7mbar).
Average wind speed in September
Watson Lake, Canada
- Average wind speed in September: 9.6km/h
The windiest months (with the highest average wind speed) are May and June (11.4km/h).
The calmest month (with the lowest average wind speed) is February (6.3km/h).
Average humidity in September
Watson Lake, Canada
- Average humidity in September: 71%
The months with the highest relative humidity are January and March (93%).
The month with the lowest relative humidity is June (53%).
Average rainfall in September
Watson Lake, Canada
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is August (38mm).
The driest month (with the least rainfall) is March (8mm).
Average rainfall days in September
Watson Lake, Canada
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is August (13.2 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in September
Watson Lake, Canada
- Average snowfall in September: 12mm
The month with the highest snowfall is January (130mm).
The months with the least snowfall are June and July (0mm).
Average snowfall days in September
Watson Lake, Canada
- Average snowfall days in September: 1.5 days
The month with the highest number of snowfall days is January (15.3 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Watson Lake, Canada
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 30min).
The months with the least sunshine are January and December (Average sunshine: 3h and 0min).
Average sunshine days in September
Watson Lake, Canada
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is February (19.3 days).
The month with the least sunshine days is June (14.1 days).
Average UV index in September
Watson Lake, 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 February, November and December (UV index 1).
Average cloud cover in September
Watson Lake, Canada
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 61).
The months with the least cloud cover are May and July (Cloud cover 36).
Average visibility in September
Watson Lake, Canada
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (6km).
Watson Lake, Canada
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