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
Weather in September
Temperature
The move into September in Richmond, Canada, indicates a slight reduction in the average high-temperature, down from August's agreeable 20.4°C to a refreshing 17.1°C. In Richmond, an average low-temperature of 10.4°C is recorded during September nights.Humidity
In September, the average relative humidity is 80%.Rainfall
In Richmond, during September, the rain falls for 14.8 days and regularly aggregates up to 87mm of precipitation. Throughout the year, in Richmond, there are 199.4 rainfall days, and 1439mm of precipitation is accumulated.Snowfall
In Richmond, Canada, snow does not fall in May through October.Sea temperature
August and September, with an average sea temperature of 11.3°C, are months with the warmest seawater.Note: Entering waters of 11.3°C is life-endangering. A mere moment in 13°C waters feels piercing cold, and below 10°C it can lead to immediate cold shock and cessation of breathing control, depending on body resilience.
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 7:55 pm. On the last day of September, sunrise is at 7:10 am and sunset at 6:54 pm PDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
FAQ
What are September temperatures in Richmond?
What is the average humidity in September in Richmond?
How many days does it rain in September in Richmond?
When it does not snow in Richmond?
What are the months with the warmest sea water in Richmond?
What is the sea water temperature in September in Richmond?
What is the average length of the day in September in Richmond?
When are sunrise and sunset in September in Richmond?
How many hours of sunshine does Richmond have in September?
What is the UV index intensity in September in Richmond?
Average temperature in September
Richmond, Canada
- Average high temperature in September: 17.1°C
The warmest months (with the highest average high temperature) are July and August (20.4°C).
The month with the lowest average high temperature is December (4.1°C).
- Average low temperature in September: 10.4°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is December (0.8°C).
Average pressure in September
Richmond, Canada
- Average pressure in September: 1016.1mbar
The month with the highest atmospheric pressure is January (1018.3mbar).
The month with the lowest atmospheric pressure is March (1015.8mbar).
Average wind speed in September
Richmond, Canada
- Average wind speed in September: 6.5km/h
The windiest months (with the highest average wind speed) are March and November (9.4km/h).
The calmest month (with the lowest average wind speed) is August (5.8km/h).
Average humidity in September
Richmond, Canada
- Average humidity in September: 80%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (75%).
Average rainfall in September
Richmond, Canada
- Average rainfall in September: 87mm
The wettest month (with the highest rainfall) is November (222mm).
The driest month (with the least rainfall) is July (28mm).
Average rainfall days in September
Richmond, Canada
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is March (21.1 days).
The month with the least rainy days is August (9.3 days).
Average snowfall in September
Richmond, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is February (98mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Richmond, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Richmond, 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
Richmond, Canada
- Average daylight in September: 12h and 4min
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 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Richmond, Canada
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is August (19.1 days).
The month with the least sunshine days is March (7.8 days).
Average UV index in September
Richmond, 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
Richmond, Canada
- Average cloud cover in September: 37
The months with the most cloud cover are January and December (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Richmond, Canada
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
Richmond, Canada
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