September weather forecastDelta, Canada
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Delta, Canada, with an average temperature fluctuating between 16.7°C (62.1°F) and 12.1°C (53.8°F).Temperature
The arrival of September brings an average high-temperature of a still comfortable 16.7°C (62.1°F), nearly identical to August's 19.3°C (66.7°F). Delta marks an average drop to a cool 12.1°C (53.8°F) during nighttime in September, following the high of the day.Humidity
The average relative humidity in September in Delta, Canada, is 80%.Rainfall
In September, in Delta, the rain falls for 11.5 days. Throughout September, 55mm (2.17") of precipitation is accumulated. Throughout the year, in Delta, there are 155 rainfall days, and 763mm (30.04") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Delta.Daylight
In September, the average length of the day is 12h and 34min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:53 pm. On the last day of September, in Delta, Canada, sunrise is at 7:11 am and sunset at 6:52 pm PDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In Delta, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Be vigilant - Preventing sunburn is recommended. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Delta, Canada
- Average high temperature in September: 16.7°C
The warmest month (with the highest average high temperature) is July (19.4°C).
The month with the lowest average high temperature is December (5.3°C).
- Average low temperature in September: 12.1°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is December (2.5°C).
Average pressure in September
Delta, 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
Delta, Canada
- Average wind speed in September: 7.9km/h
The windiest month (with the highest average wind speed) is November (12km/h).
The calmest month (with the lowest average wind speed) is August (6.8km/h).
Average humidity in September
Delta, Canada
- Average humidity in September: 80%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (76%).
Average rainfall in September
Delta, Canada
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is November (115mm).
The driest month (with the least rainfall) is July (17mm).
Average rainfall days in September
Delta, Canada
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is March (17.6 days).
The month with the least rainy days is August (6.4 days).
Average snowfall in September
Delta, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is February (61mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Delta, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Delta, Canada
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in September
Delta, Canada
- Average sunshine days in September: 17 days
The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is March (10.9 days).
Average UV index in September
Delta, Canada
- Average UV index in September: 4
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
Delta, Canada
- Average cloud cover in September: 36
The month with the most cloud cover is December (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in September
Delta, Canada
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July and August (10km).
The months with the lowest visibility are January, February, March, September, October, November and December (9km).
