This report describes the typical weather at the Queen Beatrix International Airport (Oranjestad, Aruba) weather station over the course of an average October. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Oranjestad has a hot desert climate. The area within 25 mi of this station is covered by oceans and seas (95%) and grasslands (2%).
The month of October is characterized by essentially constant daily high temperatures, with daily highs around 89°F throughout the month, exceeding 93°F or dropping below 85°F only one day in ten.
Over the course of October, the length of the day is essentially constant. The shortest day of the month is October 31 with 11:40 hours of daylight; the longest day is October 1 with 11:60 hours of daylight.
The earliest sunrise is at 6:29am on October 3; the latest sunset is at 6:29pm on October 1; the latest sunrise is at 6:33am on October 31; the earliest sunset is at 6:14pm on October 31.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover is 49% (partly cloudy) and does not vary substantially over the course of the month.
On October 16, a representative day, the sky is clear or mostly clear 28% of the time, partly cloudy 30% of the time, and mostly cloudy or overcast 16% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around October 31, occurring in 39% of days. Precipitation is least likely around October 1, occurring in 31% of days.
Throughout October, the most common forms of precipitation are moderate rain, thunderstorms, and light rain.
Moderate rain is the most severe precipitation observed during 53% of those days with precipitation. It is most likely around October 31, when it is observed during 23% of all days.
Thunderstorms are the most severe precipitation observed during 36% of those days with precipitation. They are most likely around October 7, when it is observed during 13% of all days.
Light rain is the most severe precipitation observed during 11% of those days with precipitation. It is most likely around October 29, when it is observed during 4% of all days.
Either snow is exceptionally unlikely to fall at this location in October or this station does not reliably report precipitation types.
The relative humidity typically ranges from 64% (mildly humid) to 88% (very humid) over the course of a typical October, rarely dropping below 56% (mildly humid) and reaching as high as 95% (very humid).
The air is driest around October 1, at which time the relative humidity drops below 67% (mildly humid) three days out of four; it is most humid around October 31, rising above 84% (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 October, the dew point typically varies from 74°F (very muggy) to 78°F (oppressive) and is rarely below 72°F (very muggy) or above 80°F (very oppressive).
Over the course of October typical wind speeds vary from 7 mph to 20 mph (light breeze to fresh breeze), rarely exceeding 25 mph (strong breeze).
The highest average wind speed of 14 mph (moderate breeze) occurs around October 1, at which time the average daily maximum wind speed is 20 mph (fresh breeze).
The lowest average wind speed of 12 mph (moderate breeze) occurs around October 25, at which time the average daily maximum wind speed is 18 mph (fresh breeze).