This report describes the typical weather at the Gregorio Luperón International Airport (Puerto Plata, Dominican Republic) weather station over the course of an average January. It is based on the historical records from 1997 to 2012. Earlier records are either unavailable or unreliable.
Puerto Plata has a tropical rainforest climate with no dry season. The area within 25 mi of this station is covered by forests (48%), oceans and seas (47%), and marshes (4%).
The month of January is characterized by essentially constant daily high temperatures, with daily highs around 82°F throughout the month, exceeding 86°F or dropping below 78°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 5 with 10:58 hours of daylight; the longest day is January 30 with 11:15 hours of daylight.
The earliest sunrise is at 7:16am on January 1; the latest sunset is at 6:33pm on January 31; the latest sunrise is at 7:20am on January 16; the earliest sunset is at 6:15pm on January 1.
Daylight saving time (DST) is not observed in 2012.
The median cloud cover ranges from 45% (partly cloudy) to 50% (partly cloudy). The trend is for the sky to be clearing with the median cloud cover decreasing by 5% from the start to the end of the month.
On January 16, a representative day, the sky is clear or mostly clear 32% of the time, partly cloudy 25% of the time, and mostly cloudy or overcast 22% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around January 2, occurring in 37% of days. Precipitation is least likely around January 29, occurring in 31% of days.
Throughout January, the most common forms of precipitation are light rain and moderate rain.
Light rain is the most severe precipitation observed during 51% of those days with precipitation. It is most likely around January 1, when it is observed during 19% of all days.
Moderate rain is the most severe precipitation observed during 43% of those days with precipitation. It is most likely around January 2, when it is observed during 15% 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 67% (mildly humid) to 96% (very humid) over the course of a typical January, rarely dropping below 58% (mildly humid) and reaching as high as 100% (very humid).
The air is driest around January 30, at which time the relative humidity drops below 72% (humid) three days out of four; it is most humid around January 11, rising above 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 typical January, the dew point typically varies from 66°F (muggy) to 74°F (very muggy) and is rarely below 63°F (mildy humid) or above 76°F (very muggy).
Over the course of January typical wind speeds vary from 0 mph to 13 mph (calm to moderate breeze), rarely exceeding 18 mph (fresh breeze).
The highest average wind speed of 5 mph (light breeze) occurs around January 31, at which time the average daily maximum wind speed is 13 mph (moderate breeze).
The lowest average wind speed of 4 mph (light breeze) occurs around January 11, at which time the average daily maximum wind speed is 12 mph (gentle breeze).