This report describes the typical weather at the Ile Rouge (Tadoussac, Quebec, Canada) weather station over the course of an average August. It is based on the historical records from 2010 to 2013. Earlier records are either unavailable or unreliable.
Tadoussac, Quebec has a humid continental climate with warm summers and no dry season. The area within 25 mi of this station is covered by forests (41%), lakes and rivers (40%), croplands (14%), and grasslands (6%).
The month of August is characterized by gradually falling daily high temperatures, with daily highs around 61°F throughout the month, exceeding 66°F or dropping below 57°F only one day in ten.
Over the course of August, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1:33 hours, implying an average day-over-day decrease of 3.0 minutes.
The shortest day of the month is August 31 with 13:26 hours of daylight; the longest day is August 1 with 14:59 hours of daylight.
The earliest sunrise is at 5:15am on August 1; the latest sunset is at 8:13pm on August 1; the latest sunrise is at 5:55am on August 31; the earliest sunset is at 7:21pm on August 31.
Daylight saving time is observed in 2013 but it neither starts nor ends in August, so the entire month is in daylight time.
This weather station does not reliably report sky cover.
There is either very little precipitation at this location in August, or the weather station does not reliably report the conditions.
Either snow is exceptionally unlikely to fall at this location in August or this station does not reliably report precipitation types.
The relative humidity typically ranges from 72% (humid) to 98% (very humid) over the course of a typical August, rarely dropping below 62% (mildly humid) and reaching as high as 99% (very humid).
The air is driest around August 21, at which time the relative humidity drops below 78% (humid) three days out of four; it is most humid around August 25, rising above 97% (very humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical August, the dew point typically varies from 46°F (dry) to 56°F (comfortable) and is rarely below 44°F (dry) or above 59°F (comfortable).
The time of the month between August 1 and August 31 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of August typical wind speeds vary from 2 mph to 20 mph (light air to fresh breeze), rarely exceeding 26 mph (strong breeze).
The highest average wind speed of 12 mph (moderate breeze) occurs around August 31, at which time the average daily maximum wind speed is 20 mph (fresh breeze).
The lowest average wind speed of 10 mph (gentle breeze) occurs around August 11, at which time the average daily maximum wind speed is 17 mph (moderate breeze).