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
September
Weather in September
Temperature
September's advent notes a subtle adjustment in average high-temperature to a comfortable 18.2°C (64.8°F) from August. Nighttime temperature in White Rock experiences an average drop to a cool 11.1°C (52°F) in September.Humidity
In White Rock, Canada, the average relative humidity in September is 79%.Rainfall
In White Rock, in September, during 12.8 rainfall days, 60mm (2.36") of precipitation is typically accumulated. In White Rock, Canada, during the entire year, the rain falls for 176.1 days and collects up to 1112mm (43.78") of precipitation.Snowfall
In White Rock, snow does not fall in May through October.Daylight
In White Rock, Canada, the average length of the day in September is 12h and 34min.On the first day of September in White Rock, sunrise is at 6:29 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:51 pm PDT.
Sunshine
In September, the average sunshine in White Rock is 8.9h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 3 during September translates into these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for White Rock in September?
What is the average humidity in September in White Rock?
How many days does it rain in September in White Rock?
When it does not snow in White Rock?
What is the average length of the day in September in White Rock?
What time are sunrise and sunset in September in White Rock?
How long on average sun shines in September in White Rock?
What is the UV index reading in September in White Rock?
Average temperature in September
White Rock, Canada
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is August (21.1°C).
The month with the lowest average high temperature is December (5.5°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (2.1°C).
Average pressure in September
White Rock, Canada
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is January (1018.4mbar).
The month with the lowest atmospheric pressure is March (1015.9mbar).
Average wind speed in September
White Rock, Canada
- Average wind speed in September: 6.9km/h
The windiest months (with the highest average wind speed) are November and December (10.1km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity in September
White Rock, Canada
- Average humidity in September: 79%
The months with the highest relative humidity are January and November (83%).
The month with the lowest relative humidity is July (74%).
Average rainfall in September
White Rock, Canada
- Average rainfall in September: 60mm
The wettest month (with the highest rainfall) is November (181mm).
The driest month (with the least rainfall) is July (17mm).
Average rainfall days in September
White Rock, Canada
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in September
White Rock, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is February (52mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
White Rock, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.7 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
White Rock, 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 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).
Average sunshine days in September
White Rock, Canada
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is November (8.8 days).
Average UV index in September
White Rock, Canada
- Average UV index in September: 3
The months with the highest UV index are June and 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
White Rock, Canada
- Average cloud cover in September: 35
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
White Rock, Canada
- Average visibility in September: 9km
The month with the highest visibility is July (10km).
The months with the lowest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
