This report describes the typical weather at the South Padre Island (South Padre Island, Texas, United States) weather station over the course of an average March. It is based on the historical records from 2010 to 2013. Earlier records are either unavailable or unreliable.
South Padre Island, Texas has a warm humid temperate climate with hot summers and no dry season. The area within 25 mi of this station is covered by oceans and seas (63%), grasslands (26%), marshes (4%), and lakes and rivers (3%).
The month of March is characterized by rising daily high temperatures, with daily highs increasing from 73Â°F to 79Â°F over the course of the month, exceeding 81Â°F or dropping below 71Â°F only one day in ten.
Over the course of March, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 46 minutes, implying an average day-over-day increase of 1.5 minutes.
The shortest day of the month is March 1 with 11:38 hours of daylight; the longest day is March 31 with 12:24 hours of daylight.
The earliest sunrise is at 6:44am on March 9; the latest sunset is at 7:45pm on March 31; the latest sunrise is at 7:43am on March 10; the earliest sunset is at 6:30pm on March 1.
Daylight saving time (DST) starts at 3:00am on March 10, 2013, shifting sunrise and sunset to an hour later.
The median cloud cover ranges from 35% (mostly clear) to 46% (partly cloudy). The trend is for the sky to be clearing with the median cloud cover decreasing by 12% from the start to the end of the month.
On March 29, the clearest day of the month, the sky is clear, mostly clear, or partly cloudy 42% of the time, and overcast or mostly cloudy 19% of the time.
On March 1, the cloudiest day of the month, the sky is overcast, mostly cloudy, or partly cloudy 26% of the time, and clear or mostly clear 29% of the time.
The average probability that some form of precipitation will be observed in a given day is 41%, with little variation over the course of the month.
Throughout March, the most common forms of precipitation are light rain, moderate rain, and thunderstorms.
Light rain is the most severe precipitation observed during 70% of those days with precipitation. It is most likely around March 20, when it is observed during 30% of all days.
Moderate rain is the most severe precipitation observed during 16% of those days with precipitation. It is most likely around March 31, when it is observed during 8% of all days.
Thunderstorms are the most severe precipitation observed during 13% of those days with precipitation. They are most likely around March 3, when it is observed during 6% 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 66% (mildly humid) to 95% (very humid) over the course of a typical March, rarely dropping below 59% (mildly humid) and reaching as high as 98% (very humid).
The air is driest around March 5, at which time the relative humidity drops below 71% (humid) three days out of four; it is most humid around March 1, rising above 92% (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 57Â°F (comfortable) to 70Â°F (muggy) and is rarely below 52Â°F (very comfortable) or above 73Â°F (very muggy).
Over the course of March typical wind speeds vary from 5 mph to 19 mph (light breeze to fresh breeze), rarely exceeding 22 mph (fresh breeze).
The highest average wind speed of 13 mph (moderate breeze) occurs around March 31, at which time the average daily maximum wind speed is 19 mph (fresh breeze).
The lowest average wind speed of 11 mph (gentle breeze) occurs around March 22, at which time the average daily maximum wind speed is 16 mph (moderate breeze).