This report describes the typical weather at the Jorge Chávez International Airport (Callao/Lima, Peru) weather station over the course of an average November. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Callao/Lima has a hot desert climate. The area within 25 mi of this station is covered by oceans and seas (94%) and built-up areas (3%).
The month of November is characterized by gradually rising daily high temperatures, with daily highs around 72°F throughout the month, exceeding 77°F or dropping below 67°F only one day in ten.
Over the course of November, the length of the day is essentially constant. The shortest day of the month is November 1 with 12:33 hours of daylight; the longest day is November 30 with 12:47 hours of daylight.
The earliest sunrise is at 5:33am on November 18; the latest sunset is at 6:21pm on November 30; the latest sunrise is at 5:36am on November 1; the earliest sunset is at 6:09pm on November 1.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover ranges from 72% (partly cloudy) to 80% (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 November 15, a representative day, the sky is clear or mostly clear 20% of the time, partly cloudy 31% of the time, and mostly cloudy or overcast 46% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around November 1, occurring in 23% of days. Precipitation is least likely around November 30, occurring in 14% of days.
Throughout November, the most common forms of precipitation are drizzle and light rain.
Drizzle is the most severe precipitation observed during 85% of those days with precipitation. It is most likely around November 1, when it is observed during 21% of all days.
Light rain is the most severe precipitation observed during 11% of those days with precipitation. It is most likely around November 28, when it is observed during 3% of all days.
Either snow is exceptionally unlikely to fall at this location in November or this station does not reliably report precipitation types.
The relative humidity typically ranges from 66% (mildly humid) to 95% (very humid) over the course of a typical November, rarely dropping below 59% (mildly humid) and reaching as high as 100% (very humid).
The air is driest around November 30, at which time the relative humidity drops below 70% (mildly humid) three days out of four; it is most humid around November 17, rising above 90% (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 November, the dew point typically varies from 57°F (comfortable) to 63°F (mildy humid) and is rarely below 55°F (very comfortable) or above 65°F (mildy humid).
The time of the month between November 1 and November 30 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of November typical wind speeds vary from 2 mph to 14 mph (light air to moderate breeze), rarely exceeding 21 mph (fresh breeze).
The highest average wind speed of 9 mph (gentle breeze) occurs around November 30, at which time the average daily maximum wind speed is 14 mph (moderate breeze).
The lowest average wind speed of 8 mph (gentle breeze) occurs around November 2, at which time the average daily maximum wind speed is 14 mph (moderate breeze).