This report describes the typical weather at the Lic. Gustavo Díaz Ordaz International Airport (Puerto Vallarta, Mexico) weather station over the course of an average March. It is based on the historical records from 1990 to 2012. Earlier records are either unavailable or unreliable.
Puerto Vallarta has a tropical savanna climate with dry winters. The area within 25 mi of this station is covered by forests (67%), oceans and seas (27%), and grasslands (6%).
The month of March is characterized by essentially constant daily high temperatures, with daily highs around 81°F throughout the month, exceeding 84°F or dropping below 77°F only one day in ten.
Over the course of March, the length of the day is gradually increasing. The shortest day of the month is March 1 with 11:45 hours of daylight; the longest day is March 31 with 12:21 hours of daylight.
The earliest sunrise is at 6:54am on March 31; the latest sunset is at 7:15pm on March 31; the latest sunrise is at 7:21am on March 1; the earliest sunset is at 7:06pm on March 2.
Daylight saving time is observed in 2012 but it neither starts nor ends in March, so the entire month is in standard time.
The median cloud cover is 30% (mostly clear) and does not vary substantially over the course of the month.
On March 16, a representative day, the sky is clear or mostly clear 36% of the time, partly cloudy 10% of the time, and mostly cloudy or overcast 22% of the time.
The average probability that some form of precipitation will be observed in a given day is 5%, with little variation over the course of the month.
Throughout March, the most common forms of precipitation are light rain, drizzle, and moderate rain.
Light rain is the most severe precipitation observed during 61% of those days with precipitation. It is most likely around March 1, when it is observed during 4% of all days.
Drizzle is the most severe precipitation observed during 22% of those days with precipitation. It is most likely around March 27, when it is observed during 1% of all days.
Moderate rain is the most severe precipitation observed during 12% of those days with precipitation. It is most likely around March 13, when it is observed during 1% of all days.
Either snow is exceptionally unlikely to fall at this location in March or this station does not reliably report precipitation types.
The relative humidity typically ranges from 56% (mildly humid) to 92% (very humid) over the course of a typical March, rarely dropping below 45% (comfortable), or exceeding 95% (very humid).
The air is driest around March 16, at which time the relative humidity drops below 60% (mildly humid) three days out of four; it is most humid around March 2, rising above 89% (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 March, the dew point typically varies from 57°F (comfortable) to 69°F (muggy) and is rarely below 52°F (very comfortable) or above 72°F (very muggy).
Over the course of March typical wind speeds vary from 0 mph to 15 mph (calm to moderate breeze), rarely exceeding 20 mph (fresh breeze).
The highest average wind speed of 5 mph (light breeze) occurs around March 19, at which time the average daily maximum wind speed is 15 mph (moderate breeze).
The lowest average wind speed of 5 mph (light breeze) occurs around March 1, at which time the average daily maximum wind speed is 15 mph (moderate breeze).