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 May. 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 May is characterized by rising daily high temperatures, with daily highs increasing from 83Â°F to 88Â°F over the course of the month, exceeding 89Â°F or dropping below 82Â°F only one day in ten.
Over the course of May, the length of the day is essentially constant. The shortest day of the month is May 1 with 13:10 hours of daylight; the longest day is May 31 with 13:39 hours of daylight.
The earliest sunrise is at 6:37am on May 29; the latest sunset is at 8:16pm on May 31; the latest sunrise is at 6:51am on May 1; the earliest sunset is at 8:01pm on May 2.
Daylight saving time is observed in 2013 but it neither starts nor ends in May, so the entire month is in daylight time.
The median cloud cover ranges from 36% (mostly clear) to 41% (partly cloudy).
On May 16, a representative day, the sky is clear or mostly clear 37% of the time, partly cloudy 5% of the time, and mostly cloudy or overcast 20% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around May 1, occurring in 34% of days. Precipitation is least likely around May 20, occurring in 27% of days.
Throughout May, the most common forms of precipitation are light rain, thunderstorms, and moderate rain.
Light rain is the most severe precipitation observed during 47% of those days with precipitation. It is most likely around May 4, when it is observed during 19% of all days.
Thunderstorms are the most severe precipitation observed during 27% of those days with precipitation. They are most likely around May 31, when it is observed during 13% of all days.
Moderate rain is the most severe precipitation observed during 25% of those days with precipitation. It is most likely around May 5, when it is observed during 9% of all days.
Either snow is exceptionally unlikely to fall at this location in May or this station does not reliably report precipitation types.
The relative humidity typically ranges from 63% (mildly humid) to 92% (very humid) over the course of a typical May, rarely dropping below 61% (mildly humid), or exceeding 94% (very humid).
The air is driest around May 24, at which time the relative humidity drops below 65% (mildly humid) three days out of four; it is most humid around May 3, rising above 91% (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 May, the dew point typically varies from 68Â°F (muggy) to 76Â°F (oppressive) and is rarely below 65Â°F (mildy humid) or above 77Â°F (oppressive).
Over the course of May typical wind speeds vary from 8 mph to 22 mph (gentle breeze to fresh breeze), rarely exceeding 22 mph (fresh breeze).
The highest average wind speed of 16 mph (moderate breeze) occurs around May 1, at which time the average daily maximum wind speed is 21 mph (fresh breeze).
The lowest average wind speed of 12 mph (moderate breeze) occurs around May 31, at which time the average daily maximum wind speed is 17 mph (moderate breeze).