This report describes the typical weather at the Queen Beatrix International Airport (Oranjestad, Aruba) weather station over the course of an average January. 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 January is characterized by essentially constant daily high temperatures, with daily highs around 85°F throughout the month, exceeding 88°F or dropping below 83°F only one day in ten.
Over the course of January, the length of the day is essentially constant. The shortest day of the month is January 1 with 11:24 hours of daylight; the longest day is January 29 with 11:35 hours of daylight.
The earliest sunrise is at 7:01am on January 2; the latest sunset is at 6:41pm on January 31; the latest sunrise is at 7:06am on January 26; the earliest sunset is at 6:25pm on January 1.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover is 35% (mostly clear) and does not vary substantially over the course of the month.
On January 16, a representative day, the sky is clear or mostly clear 46% of the time, partly cloudy 25% of the time, and mostly cloudy or overcast 6% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around January 1, occurring in 43% of days. Precipitation is least likely around January 31, occurring in 35% of days.
Throughout January, the most common forms of precipitation are moderate rain.
Moderate rain is the most severe precipitation observed during 87% of those days with precipitation. It is most likely around January 2, when it is observed during 37% of all days.
Either snow is exceptionally unlikely to fall at this location in January or this station does not reliably report precipitation types.
The relative humidity typically ranges from 64% (mildly humid) to 87% (very humid) over the course of a typical January, rarely dropping below 57% (mildly humid), or exceeding 95% (very humid).
The air is driest around January 26, at which time the relative humidity drops below 67% (mildly humid) three days out of four; it is most humid around January 3, 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 January, the dew point typically varies from 70°F (muggy) to 74°F (very muggy) and is rarely below 68°F (muggy) or above 77°F (oppressive).
Over the course of January typical wind speeds vary from 10 mph to 22 mph (gentle breeze to fresh breeze), rarely exceeding 27 mph (strong breeze).
The highest average wind speed of 16 mph (moderate breeze) occurs around January 31, at which time the average daily maximum wind speed is 22 mph (fresh breeze).
The lowest average wind speed of 15 mph (moderate breeze) occurs around January 1, at which time the average daily maximum wind speed is 21 mph (fresh breeze).