September weather forecast
Richmond, Canada

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Weather in September

In September, Richmond starts transitioning from summer to fall. Even though the temperature drops to an average high of 17.1°C (62.8°F), the summer warmth still lingers. Rainfall witnesses a significant increase, approximately twice the volume in August, recording 87mm (3.43"). The daylight hours slowly start to taper off, hinting at the arrival of the fall season. Despite the diminishing sunshine hours, the visibility remains impressively high, allowing for splendid views of the changing cityscape.

Temperature

The average high-temperature in Richmond shows a slight dip in September, from August's pleasant 20.4°C (68.7°F) to a comfortable 17.1°C (62.8°F). The low-temperature average for Richmond during September stands at a cool 10.4°C (50.7°F).

Humidity

In Richmond, the average relative humidity in September is 80%.

Rainfall

In Richmond, during September, the rain falls for 14.8 days and regularly aggregates up to 87mm (3.43") of precipitation. In Richmond, during the entire year, the rain falls for 199.4 days and collects up to 1439mm (56.65") of precipitation.

Snowfall

In Richmond, 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.
Note: Swimming at temperatures less than 10°C (50°F) in 11.3°C (52.3°F) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 13°C (55.4°F) without adequate warmth can be discomforting.

Daylight

The average length of the day in September in Richmond is 12h and 34min.
On the first day of the month, sunrise is at 6:30 am and sunset at 7:54 pm. On the last day of September, sunrise is at 7:12 am and sunset at 6:52 pm PDT.

Sunshine

In Richmond, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September in Richmond is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: During September, 3 as the daily maximum UV index converts into the following advice:
Heed the precautions - It is counselled to guard against solar damage. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What are September temperatures in Richmond?

In Richmond, in September, the average high-temperature is 17.1°C (62.8°F), and the average low-temperature is 10.4°C (50.7°F).

What is the average humidity in September in Richmond?

In September, the average relative humidity in Richmond is 80%.

How much does it rain in Richmond in September?

In Richmond, Canada, in September, during 14.8 rainfall days, 87mm (3.43") of precipitation is typically accumulated.

When it does not snow in Richmond?

In Richmond, Canada, snow does not fall in May through October.

What are the months with the warmest sea water in Richmond?

The months with the warmest seawater in Richmond, Canada, are August and September, with an average sea temperature of 11.3°C (52.3°F).

What is the water temperature in September in Richmond?

In Richmond, in September, the average water temperature is 11.3°C (52.3°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

What is the average length of the day in September in Richmond?

In Richmond, the average day length in September is 12h and 34min.

What time are sunrise and sunset in September in Richmond?

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 7:12 am and sunset at 6:52 pm PDT.

How long on average sun shines in September in Richmond?

In Richmond, Canada, the average sunshine duration in September is 8.5h.

What is the UV index reading in September in Richmond?

In Richmond, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Richmond, Canada

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).

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Average pressure in September
Richmond, Canada

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).

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Average wind speed in September
Richmond, Canada

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).

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Average humidity in September
Richmond, Canada

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%).

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Average rainfall in September
Richmond, Canada

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).

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Average rainfall days in September
Richmond, Canada

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).

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Average snowfall in September
Richmond, Canada

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).

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Average snowfall days in September
Richmond, Canada

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).

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Average sea temperature in September
Richmond, Canada

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).

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Average daylight in September /
Average sunshine in September
Richmond, Canada

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).

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Average sunshine days in September
Richmond, Canada

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).

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Average UV index in September
Richmond, Canada

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).

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Average cloud cover in September
Richmond, Canada

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).

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Average visibility in September
Richmond, Canada

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).

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Richmond, Canada

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