September weather forecastRimouski, Canada
September
Weather in September
The first month of the autumn, September, is still a mild month in Rimouski, Canada, with an average temperature ranging between min 9.1°C (48.4°F) and max 15.3°C (59.5°F).Temperature
Rimouski's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's agreeable 20°C (68°F) to a mild 15.3°C (59.5°F). Throughout the nights in September, Rimouski experiences an average low-temperature of 9.1°C (48.4°F).Humidity
In Rimouski, the average relative humidity in September is 78%.Rainfall
In Rimouski, in September, it is raining for 13.4 days, with typically 50mm (1.97") of accumulated precipitation. In Rimouski, during the entire year, the rain falls for 122.4 days and collects up to 652mm (25.67") of precipitation.Snowfall
In Rimouski, Canada, snow does not fall in June through September.Sea temperature
In Rimouski, the average seawater temperature in September is 9.1°C (48.4°F).Note: While a brief time in 9.1°C (48.4°F) at 13°C (55.4°F) is already bracing, plunging below 10°C (50°F) can severely affect breathing and introduce a cold shock, relying on your physical state.
Daylight
In Rimouski, the average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 5:52 am and sunset at 7:15 pm. On the last day of September, in Rimouski, sunrise is at 6:33 am and sunset at 6:14 pm EDT.
Sunshine
The average sunshine in September is 7.6h.UV index
The average daily maximum UV index in September in Rimouski is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 3 suggests these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rimouski, Canada
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (-7.4°C).
- Average low temperature in September: 9.1°C
The month with the highest average low temperature is July (13.5°C).
The coldest month (with the lowest average low temperature) is January (-13.3°C).
Average pressure in September
Rimouski, Canada
- Average pressure in September: 1015.7mbar
The month with the highest atmospheric pressure is March (1016mbar).
The month with the lowest atmospheric pressure is July (1011.4mbar).
Average wind speed in September
Rimouski, Canada
- Average wind speed in September: 14.7km/h
The windiest month (with the highest average wind speed) is January (18.3km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in September
Rimouski, Canada
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is June (74%).
Average rainfall in September
Rimouski, Canada
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is October (68mm).
The driest month (with the least rainfall) is February (39mm).
Average rainfall days in September
Rimouski, Canada
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (14.7 days).
The months with the least rainy days are January and February (2.8 days).
Average snowfall in September
Rimouski, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (209mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Rimouski, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Rimouski, Canada
- Average sea temperature in September: 9.1°C
The best month for swimming (with the highest average sea temperature) is July (13.1°C).
The coldest month (with the lowest average sea temperature) is February (-1°C).
Average daylight in September /
Average sunshine in September
Rimouski, Canada
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 2h and 18min).
Average sunshine days in September
Rimouski, Canada
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is June (14.9 days).
The month with the least sunshine days is February (9.5 days).
Average UV index in September
Rimouski, 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 and December (UV index 1).
Average cloud cover in September
Rimouski, Canada
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Rimouski, Canada
- Average visibility in September: 9km
The months with the highest visibility are May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February, March, April and December (8km).
