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
September's arrival subtly correlates with a reduction in the average high-temperature, down from a pleasant 21.4°C (70.5°F) in August to a refreshing 16.8°C (62.2°F). In Château-Richer, September's nights observe an average temperature dip to a chilly 7.6°C (45.7°F).Humidity
In September, the average relative humidity is 80%.Rainfall
In Château-Richer, in September, it is raining for 12.5 days, with typically 53mm (2.09") of accumulated precipitation. Throughout the year, there are 152.6 rainfall days, and 754mm (29.69") of precipitation is accumulated.Snowfall
In Château-Richer, snow does not fall in June through September.Sea temperature
In Château-Richer, Canada, the average seawater temperature in September is 12.3°C (54.1°F).Note: 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.
Daylight
In Château-Richer, the average length of the day in September is 12h and 32min.On the first day of September in Château-Richer, Canada, sunrise is at 6:04 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:25 pm EDT.
Sunshine
In Château-Richer, the average sunshine in September is 8.2h.UV index
In Château-Richer, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 3 in September translates into these instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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?
Does it snow in September?
How cold is the water in September?
How many hours of daylight does Château-Richer have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Château-Richer, Canada
- Average high temperature in September: 16.8°C
The warmest month (with the highest average high temperature) is July (22.1°C).
The month with the lowest average high temperature is January (-8.5°C).
- Average low temperature in September: 7.6°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-16.8°C).
Average pressure in September
Château-Richer, Canada
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is March (1016.9mbar).
The month with the lowest atmospheric pressure is June (1011.9mbar).
Average wind speed in September
Château-Richer, Canada
- Average wind speed in September: 10km/h
The windiest months (with the highest average wind speed) are January, February and March (11.5km/h).
The calmest months (with the lowest average wind speed) are June, July, August and September (10km/h).
Average humidity in September
Château-Richer, Canada
- Average humidity in September: 80%
The months with the highest relative humidity are January, February and March (92%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Château-Richer, Canada
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is October (79mm).
The driest month (with the least rainfall) is February (51mm).
Average rainfall days in September
Château-Richer, Canada
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is April (16.6 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in September
Château-Richer, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is March (314mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Château-Richer, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Château-Richer, Canada
- Average sea temperature in September: 12.3°C
The best month for swimming (with the highest average sea temperature) is August (14.1°C).
The coldest month (with the lowest average sea temperature) is February (0.8°C).
Average daylight in September /
Average sunshine in September
Château-Richer, Canada
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in September
Château-Richer, Canada
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is September (15.2 days).
The month with the least sunshine days is April (8 days).
Average UV index in September
Château-Richer, 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, March and December (UV index 1).
Average cloud cover in September
Château-Richer, Canada
- Average cloud cover in September: 39
The months with the most cloud cover are January and February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in September
Château-Richer, Canada
- Average visibility in September: 8km
The months with the highest visibility are May and June (9km).
The months with the lowest visibility are January and February (6km).
