This report describes the typical weather at the Subteniente FAP Alejandro Velasco Astete International Airport (Cusco, Peru) weather station over the course of an average June. It is based on the historical records from 1987 to 2012. Earlier records are either unavailable or unreliable.
Cusco has a mild temperate climate with dry winters and warm summers. The area within 25 mi of this station is covered by grasslands (86%), shrublands (5%), and croplands (5%).
The month of June is characterized by essentially constant daily high temperatures, with daily highs around 67Â°F throughout the month, exceeding 71Â°F or dropping below 61Â°F only one day in ten.
Over the course of June, the length of the day is essentially constant. The shortest day of the month is June 24 with 11:19 hours of daylight; the longest day is June 1 with 11:22 hours of daylight.
The earliest sunrise is at 6:05am on June 1; the latest sunset is at 5:32pm on June 30; the latest sunrise is at 6:11am on June 30; the earliest sunset is at 5:27pm on June 5.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover is 15% (mostly clear) and does not vary substantially over the course of the month.
On June 15, a representative day, the sky is clear or mostly clear 72% of the time, partly cloudy 13% of the time, and mostly cloudy or overcast 10% of the time.
The average probability that some form of precipitation will be observed in a given day is 8%, with little variation over the course of the month.
Throughout June, the most common forms of precipitation are light rain, drizzle, and moderate rain.
Light rain is the most severe precipitation observed during 39% of those days with precipitation. It is most likely around June 10, when it is observed during 4% of all days.
Drizzle is the most severe precipitation observed during 30% of those days with precipitation. It is most likely around June 29, when it is observed during 3% of all days.
Moderate rain is the most severe precipitation observed during 25% of those days with precipitation. It is most likely around June 13, when it is observed during 2% of all days.
Either snow is exceptionally unlikely to fall at this location in June or this station does not reliably report precipitation types.
The relative humidity typically ranges from 27% (dry) to 90% (very humid) over the course of a typical June, rarely dropping below 14% (very dry) and reaching as high as 100% (very humid).
The air is driest around June 20, at which time the relative humidity drops below 34% (comfortable) three days out of four; it is most humid around June 17, rising above 82% (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 June, the dew point typically varies from 26Â°F (dry) to 40Â°F (dry) and is rarely below 16Â°F (dry) or above 45Â°F (dry).
Over the course of June typical wind speeds vary from 0 mph to 12 mph (calm to gentle breeze), rarely exceeding 18 mph (moderate breeze).
The highest average wind speed of 3 mph (light air) occurs around June 26, at which time the average daily maximum wind speed is 11 mph (gentle breeze).
The lowest average wind speed of 2 mph (light air) occurs around June 4, at which time the average daily maximum wind speed is 12 mph (gentle breeze).