This report describes the typical weather at the Los Cabos International Airport (Los Cabos, Mexico) weather station over the course of an average September. It is based on the historical records from 1996 to 2012. Earlier records are either unavailable or unreliable.
Los Cabos has a hot semi-arid steppe climate. The area within 25 mi of this station is covered by shrublands (43%), oceans and seas (33%), and forests (24%).
The month of September is characterized by essentially constant daily high temperatures, with daily highs around 92°F throughout the month, exceeding 96°F or dropping below 86°F only one day in ten.
Over the course of September, the length of the day is gradually decreasing. The shortest day of the month is September 30 with 11:56 hours of daylight; the longest day is September 1 with 12:34 hours of daylight.
The earliest sunrise is at 7:01am on September 1; the latest sunset is at 7:35pm on September 1; the latest sunrise is at 7:10am on September 29; the earliest sunset is at 7:06pm on September 30.
Daylight savings time is observed in 2012 but it neither starts nor ends in September, so the entire month is in daylight time.
The median cloud cover ranges from 40% (mostly clear) to 48% (partly cloudy). The trend is for the sky to be clearing with the median cloud cover decreasing by 8% from the start to the end of the month.
On September 15, a representative day, the sky is clear or mostly clear 20% of the time, partly cloudy 15% of the time, and mostly cloudy or overcast 22% of the time.
The average probability that some form of precipitation will be observed in a given day is 14%, with little variation over the course of the month.
Throughout September, the most common forms of precipitation are moderate rain, light rain, and drizzle.
Moderate rain is the most severe precipitation observed during 58% of those days with precipitation. It is most likely around September 16, when it is observed during 9% of all days.
Light rain is the most severe precipitation observed during 17% of those days with precipitation. It is most likely around September 24, when it is observed during 3% of all days.
Drizzle is the most severe precipitation observed during 10% of those days with precipitation. It is most likely around September 4, when it is observed during 2% of all days.
Either snow is exceptionally unlikely to fall at this location in September or this station does not reliably report precipitation types.
The relative humidity typically ranges from 47% (comfortable) to 85% (very humid) over the course of a typical September, rarely dropping below 33% (comfortable) and reaching as high as 96% (very humid).
The air is driest around September 30, at which time the relative humidity drops below 54% (mildly humid) three days out of four; it is most humid around September 7, rising above 81% (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 September, the dew point typically varies from 66°F (muggy) to 76°F (very muggy) and is rarely below 59°F (comfortable) or above 78°F (oppressive).
Over the course of September typical wind speeds vary from 0 mph to 16 mph (calm to moderate breeze), rarely exceeding 21 mph (fresh breeze).
The highest average wind speed of 7 mph (light breeze) occurs around September 1, at which time the average daily maximum wind speed is 16 mph (moderate breeze).
The lowest average wind speed of 6 mph (light breeze) occurs around September 29, at which time the average daily maximum wind speed is 15 mph (moderate breeze).