This report describes the typical weather at the Alfonso Bonilla Aragón International Airport (Cali, Colombia) weather station over the course of an average year. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Cali has a tropical savanna climate with dry winters. The area within 25 mi of this station is covered by grasslands (65%), forests (14%), croplands (9%), tundra (7%), and shrublands (4%).
Over the course of a year, the temperature typically varies from 66Â°F to 86Â°F and is rarely below 64Â°F or above 90Â°F.
The warm season lasts from July 22 to September 13 with an average daily high temperature above 85Â°F. The hottest day of the year is August 2, with an average high of 86Â°F and low of 66Â°F.
The cold season lasts from October 18 to December 15 with an average daily high temperature below 83Â°F. The coldest day of the year is July 23, with an average low of 66Â°F and high of 85Â°F.
The length of the day does not vary substantially over the course of the year, staying within 20 minutes of 12 hours throughout. The shortest day is December 21 with 11:55 hours of daylight; the longest day is June 20 with 12:20 hours of daylight.
The earliest sunrise is at 5:49am on November 2 and the latest sunset is at 6:21pm on July 19. The latest sunrise is at 6:20am on February 6 and the earliest sunset is at 5:48pm on November 11.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover ranges from 69% (partly cloudy) to 85% (mostly cloudy). The sky is cloudiest on May 6 and clearest on January 16. The clearer part of the year begins around June 26. The cloudier part of the year begins around March 7.
On January 16, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 42% of the time, and overcast or mostly cloudy 32% of the time.
On May 6, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 71% of the time, and clear or mostly clear 7% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around April 28, occurring in 60% of days. Precipitation is least likely around August 6, occurring in 32% of days.
Over the entire year, the most common forms of precipitation are thunderstorms and drizzle.
Thunderstorms are the most severe precipitation observed during 50% of those days with precipitation. They are most likely around April 13, when it is observed during 34% of all days.
Drizzle is the most severe precipitation observed during 36% of those days with precipitation. It is most likely around November 5, when it is observed during 20% of all days.
During the warm season, which lasts from July 22 to September 13, there is a 35% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of thunderstorms (49% of days with precipitation have at worst thunderstorms), drizzle (38%), and moderate rain (7%).
During the cold season, which lasts from October 18 to December 15, there is a 53% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of thunderstorms (49% of days with precipitation have at worst thunderstorms), drizzle (36%), moderate rain (7%), and light rain (5%).
Either snow is exceptionally unlikely to fall at any time during the year at this location or this station does not reliably report precipitation types.
The relative humidity typically ranges from 47% (comfortable) to 96% (very humid) over the course of the year, rarely dropping below 38% (comfortable) and reaching as high as 100% (very humid).
The air is driest around August 10, at which time the relative humidity drops below 52% (mildly humid) three days out of four; it is most humid around April 17, exceeding 94% (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 year, the dew point typically varies from 61Â°F (comfortable) to 69Â°F (muggy) and is rarely below 58Â°F (comfortable) or above 70Â°F (muggy).
Over the course of the year typical wind speeds vary from 0 mph to 14 mph (calm to moderate breeze), rarely exceeding 21 mph (fresh breeze).
The highest average wind speed of 5 mph (light breeze) occurs around September 4, at which time the average daily maximum wind speed is 13 mph (moderate breeze).
The lowest average wind speed of 3 mph (light air) occurs around May 29, at which time the average daily maximum wind speed is 11 mph (gentle breeze).