September weather forecastVancouver, Canada
September
Weather in September
September signals the onset of autumn in Vancouver, with a prominent shift from the summery heat to cooler temperatures. The month records a significant rise in rainfall to 82mm (3.23"), from August's 41mm (1.61"), an early sign of the impending winter. Cooler winds start to rustle the falling leaves, providing a scenic beauty to Vancouver's urban landscape. Foggy mornings and dew-laden vegetation characterize this month's mornings, offering captivating scenes to morning walkers. The weather in September marks a transition from the uniform climatic conditions of August to the colder, wetter October.Temperature
With September's advent, Vancouver sees an average high-temperature of a still comfortable 16.3°C (61.3°F), subtly shifted from August's 19.2°C (66.6°F). In Vancouver, the month of September records an average minimum temperature of 11.3°C (52.3°F), a slight dip from the daily highs.Humidity
The average relative humidity in September is 80%.Rainfall
In September, in Vancouver, the rain falls for 14.2 days. Throughout September, 82mm (3.23") of precipitation is accumulated. Throughout the year, there are 192.4 rainfall days, and 1325mm (52.17") of precipitation is accumulated.Snowfall
In Vancouver, snow does not fall in May through October.Sea temperature
August and September, with an average sea temperature of 11.3°C (52.3°F), are months with the warmest seawater in Vancouver.Note: Entering waters of 11.3°C (52.3°F) is life-endangering. A mere moment in 13°C (55.4°F) waters feels piercing cold, and below 10°C (50°F) it can lead to immediate cold shock and cessation of breathing control, depending on body resilience.
Daylight
The average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:54 pm. On the last day of September, in Vancouver, sunrise is at 7:12 am and sunset at 6:52 pm PDT.
Sunshine
The average sunshine in September in Vancouver is 8.8h.UV index
The average daily maximum UV index in September in Vancouver, Canada, is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 3 during September leads to these instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vancouver, Canada
- Average high temperature in September: 16.3°C
The warmest month (with the highest average high temperature) is July (19.3°C).
The month with the lowest average high temperature is December (4.7°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is December (1.9°C).
Average pressure in September
Vancouver, Canada
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is January (1018.1mbar).
The month with the lowest atmospheric pressure is March (1015.7mbar).
Average wind speed in September
Vancouver, Canada
- Average wind speed in September: 7.4km/h
The windiest month (with the highest average wind speed) is November (11.4km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity in September
Vancouver, Canada
- Average humidity in September: 80%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is July (75%).
Average rainfall in September
Vancouver, Canada
- Average rainfall in September: 82mm
The wettest month (with the highest rainfall) is November (209mm).
The driest month (with the least rainfall) is July (24mm).
Average rainfall days in September
Vancouver, Canada
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (8.8 days).
Average snowfall in September
Vancouver, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is February (67mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Vancouver, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Vancouver, Canada
- Average sea temperature in September: 11.3°C
The best months for swimming (with the highest average sea temperature) are August and September (11.3°C).
The coldest month (with the lowest average sea temperature) is February (6.8°C).
Average daylight in September /
Average sunshine in September
Vancouver, Canada
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).
Average sunshine days in September
Vancouver, Canada
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is August (19.4 days).
The months with the least sunshine days are February and March (8.3 days).
Average UV index in September
Vancouver, Canada
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Vancouver, Canada
- Average cloud cover in September: 35
The months with the most cloud cover are January and December (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in September
Vancouver, Canada
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (9km).
