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Average Weather In July For South Padre Island, Texas, USA

Location

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 July. 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%).

Temperature

The month of July is characterized by essentially constant daily high temperatures, with daily highs around 90°F throughout the month, exceeding 91°F or dropping below 88°F only one day in ten.

Daily High and Low Temperature in July

The daily average low (blue) and high (red) temperature with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).
Daily low temperatures are around 80°F, falling below 78°F or exceeding 82°F only one day in ten.

Fraction of Time Spent in Various Temperature Bands in July

The average fraction of time spent in various temperature bands: frigid (below 15°F), freezing (15°F to 32°F), cold (32°F to 50°F), cool (50°F to 65°F), comfortable (65°F to 75°F), warm (75°F to 85°F), hot (85°F to 100°F) and sweltering (above 100°F).
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March 2017
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April 2017
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May 2017
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June 2017
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July 2017
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August 2017
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September 2017
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October 2017
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November 2017
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January 2018
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Sun

Over the course of July, the length of the day is essentially constant. The shortest day of the month is July 31 with 13:22 hours of daylight; the longest day is July 1 with 13:44 hours of daylight.

Daily Hours of Daylight and Twilight in July

The number of hours during which the Sun is visible (black line), with various degrees of daylight, twilight, and night, indicated by the color bands. From bottom (most yellow) to top (most gray): full daylight, solar twilight (Sun is visible but less than 6° from the horizon), civil twilight (Sun is not visible but is less than 6° below the horizon), nautical twilight (Sun is between 6° and 12° below the horizon), astronomical twilight (Sun is between 12° and 18° below the horizon), and full night.

The earliest sunrise is at 6:41am on July 1; the latest sunset is at 8:25pm on July 3; the latest sunrise is at 6:54am on July 31; the earliest sunset is at 8:16pm on July 31.

Daylight saving time is observed in 2013 but it neither starts nor ends in July, so the entire month is in daylight time.

Daily Sunrise & Sunset with Twilight and Daylight Saving Time in July

The solar day over the course of the year 2013 . From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (solar, civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the "DST" labels.

Clouds

The median cloud cover ranges from 11% (mostly clear) to 22% (mostly clear). The trend is for the sky to be clearing with the median cloud cover decreasing by 11% from the start to the end of the month.

Median Cloud Cover in July

The median daily cloud cover (black line) with percentile bands (inner band from 40th to 60th percentile, outer band from 25th to 75th percentile).

On July 31, the clearest day of the month, the sky is clear, mostly clear, or partly cloudy 84% of the time, and overcast or mostly cloudy 9% of the time.

On July 1, the cloudiest day of the month, the sky is overcast, mostly cloudy, or partly cloudy 20% of the time, and clear or mostly clear 59% of the time.

Cloud Cover Types in July

The fraction of time spent in each of the five sky cover categories. From top (most blue) to bottom (most gray), the categories are clear, mostly clear, partly cloudy, mostly cloudy, and overcast. Pink indicates missing data. Outside of the United States clear skies are often reported ambiguously, leading them to be lumped in with the missing data.

Precipitation

The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around July 1, occurring in 25% of days. Precipitation is least likely around July 25, occurring in 20% of days.

Probability of Precipitation at Some Point in the Day in July

The fraction of days in which various types of precipitation are observed. If more than one type of precipitation is reported in a given day, the more severe precipitation is counted. For example, if light rain is observed in the same day as a thunderstorm, that day counts towards the thunderstorm totals. The order of severity is from the top down in this graph, with the most severe at the bottom.

Throughout July, 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 July 15, when it is observed during 20% of all days.

Light rain is the most severe precipitation observed during 11% of those days with precipitation. It is most likely around July 1, when it is observed during 4% of all days.

Types of Precipitation Throughout July

Relative frequency of various types of precipitation over the course of a typical July.

Snow

Either snow is exceptionally unlikely to fall at this location in July or this station does not reliably report precipitation types.

Humidity

The relative humidity typically ranges from 65% (mildly humid) to 91% (very humid) over the course of a typical July, rarely dropping below 62% (mildly humid), or exceeding 94% (very humid).

The air is driest around July 5, at which time the relative humidity drops below 67% (mildly humid) three days out of four; it is most humid around July 30, rising above 88% (very humid) three days out of four.

Relative Humidity in July

The average daily high (blue) and low (brown) relative humidity with percentile bands (inner bands from 25th to 75th percentile, outer bands from 10th to 90th percentile).

Dew Point

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 July, the dew point typically varies from 75°F (very muggy) to 79°F (oppressive) and is rarely below 74°F (very muggy) or above 80°F (very oppressive).

Dew Point in July

The daily average low (blue) and high (red) dew point with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).

Wind

Over the course of July typical wind speeds vary from 2 mph to 17 mph (light air to moderate breeze), rarely exceeding 20 mph (fresh breeze).

The highest average wind speed of 11 mph (gentle breeze) occurs around July 6, at which time the average daily maximum wind speed is 16 mph (moderate breeze).

The lowest average wind speed of 9 mph (gentle breeze) occurs around July 26, at which time the average daily maximum wind speed is 13 mph (moderate breeze).

Wind Speed in July

The average daily minimum (red), maximum (green), and average (black) wind speed with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).
The wind is most often out of the south east (24% of the time) and east (21% of the time). The wind is least often out of the south west (1% of the time), west (3% of the time), and south (4% of the time).

Wind Directions in July

The fraction of time spent with the wind blowing from the various directions over the entire year. Values do not sum to 100% because the wind direction is undefined when the wind speed is zero.

Fraction of Time Spent with Various Wind Directions in July

The fraction of time spent with the wind blowing from the various directions on a daily basis. Stacked values do not always sum to 100% because the wind direction is undefined when the wind speed is zero.