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 sea temperature 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
September
Weather in September
Temperature
As August transitions into September, Ladner records an average high-temperature of a still enjoyable 16.7°C (62.1°F), showing a gentle shift from the preceding month. A consistent nighttime average temperature of 12.1°C (53.8°F) is maintained during September.Humidity
In Ladner, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 11.5 days. Throughout September, 55mm (2.17") of precipitation is accumulated. In Ladner, Canada, during the entire year, the rain falls for 155 days and collects up to 763mm (30.04") of precipitation.Snowfall
April through October are months without snowfall.Sea temperature
August and September, with an average sea temperature of 11.3°C (52.3°F), are months with the warmest seawater in Ladner.Note: Diving into 11.3°C (52.3°F) when it's under 10°C (50°F) can cause immediate cold shock symptoms, marked by hyperventilation.
Daylight
The average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 6:30 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:52 pm PDT.
Sunshine
In Ladner, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Act with care - The need to guard against sun damage is communicated. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
When is the sea warmest?
What is the sea water temperature in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Ladner have in September?
What is the UV index reading in September in Ladner?
Average temperature in September
Ladner, 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
Ladner, 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
Ladner, 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
Ladner, 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
Ladner, 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
Ladner, 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
Ladner, 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
Ladner, 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 sea temperature in September
Ladner, 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
Ladner, Canada
- Average daylight in September: 12h and 4min
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 4min
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
Ladner, 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
Ladner, 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
Ladner, 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
Ladner, 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).
