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 August. 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 August is characterized by essentially constant daily high temperatures, with daily highs around 91Â°F throughout the month, exceeding 92Â°F or dropping below 89Â°F only one day in ten.
Over the course of August, the length of the day is gradually decreasing. The shortest day of the month is August 31 with 12:40 hours of daylight; the longest day is August 1 with 13:21 hours of daylight.
The earliest sunrise is at 6:54am on August 1; the latest sunset is at 8:15pm on August 1; the latest sunrise is at 7:09am on August 31; the earliest sunset is at 7:48pm on August 31.
Daylight saving time is observed in 2013 but it neither starts nor ends in August, so the entire month is in daylight time.
The median cloud cover is 10% (mostly clear) and does not vary substantially over the course of the month.
On August 16, a representative day, the sky is clear or mostly clear 80% of the time, partly cloudy 7% of the time, and mostly cloudy or overcast 8% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around August 22, occurring in 27% of days. Precipitation is least likely around August 1, occurring in 20% of days.
Throughout August, the most common forms of precipitation are thunderstorms and light rain.
Thunderstorms are the most severe precipitation observed during 84% of those days with precipitation. They are most likely around August 22, when it is observed during 24% of all days.
Light rain is the most severe precipitation observed during 10% of those days with precipitation. It is most likely around August 30, when it is observed during 3% of all days.
Either snow is exceptionally unlikely to fall at this location in August or this station does not reliably report precipitation types.
The relative humidity typically ranges from 63% (mildly humid) to 91% (very humid) over the course of a typical August, rarely dropping below 58% (mildly humid), or exceeding 94% (very humid).
The air is driest around August 31, at which time the relative humidity drops below 67% (mildly humid) three days out of four; it is most humid around August 17, rising above 90% (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 August, the dew point typically varies from 74Â°F (very muggy) to 80Â°F (very oppressive) and is rarely below 72Â°F (very muggy) or above 81Â°F (very oppressive).
Over the course of August typical wind speeds vary from 2 mph to 15 mph (light air to moderate breeze), rarely exceeding 19 mph (fresh breeze).
The highest average wind speed of 9 mph (gentle breeze) occurs around August 31, at which time the average daily maximum wind speed is 15 mph (moderate breeze).
The lowest average wind speed of 8 mph (gentle breeze) occurs around August 19, at which time the average daily maximum wind speed is 12 mph (moderate breeze).