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 arrival of September in Vancouver suggests a slight decrease in the average high-temperature, moving from a warm 80.6°F in August to an agreeable 73°F. Despite high daytime temperatures, the average temperature lowers to a fresh 50.7°F during September nights.Humidity
In September, the average relative humidity is 70%.Rainfall
In Vancouver, in September, during 10.8 rainfall days, 1.73" of precipitation is typically accumulated. In Vancouver, during the entire year, the rain falls for 177.1 days and collects up to 34.29" of precipitation.Snowfall
April through October are months without snowfall in Vancouver.Daylight
In September, the average length of the day in Vancouver is 12h and 31min.On the first day of September, sunrise is at 6:32 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:53 pm PDT.
Sunshine
In Vancouver, the average sunshine in September is 9.3h.UV index
In Vancouver, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
FAQ
What is the temperature in September in Vancouver?
What is the average humidity in September in Vancouver?
How much does it rain in Vancouver in September?
When it does not snow in Vancouver?
How many hours of daylight does Vancouver have in September?
When is the sunrise / sunset in September in Vancouver?
How many hours of sunshine does Vancouver have in September?
How high is the UV index in September in Vancouver?
Average temperature in September
Vancouver, WA
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is August (80.6°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in September: 50.7°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34°F).
Average pressure in September
Vancouver, WA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in September
Vancouver, WA
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is January (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in September
Vancouver, WA
- Average humidity in September: 70%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Vancouver, WA
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is December (5.08").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in September
Vancouver, WA
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.9 days).
Average snowfall in September
Vancouver, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Vancouver, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Vancouver, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 4h and 6min).
Average sunshine days in September
Vancouver, WA
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is February (7.9 days).
Average UV index in September
Vancouver, WA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Vancouver, WA
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Vancouver, WA
- Average visibility in September: 6mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
Vancouver, Washington, USA
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