August weather forecast
San Isidro, TX

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Weather in August

The last month of the summer, August, is also a fiery hot month in San Isidro, Texas, with an average temperature ranging between max 100°F (37.8°C) and min 80.1°F (26.7°C).

Temperature

The month of August sees the highest average temperatures, reaching 100°F (37.8°C) at the peak and 80.1°F (26.7°C) at the low.

Heat index

The heat index for August is estimated at a burning hot 122°F (50°C). Observe: Heat exhaustion and heat cramps are probable. Heatstroke is on the horizon with prolonged exertion.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

August is the least humid month, with an average relative humidity of 53%.

Rainfall

In San Isidro, in August, during 6.9 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. Throughout the year, in San Isidro, Texas, there are 98.5 rainfall days, and 13.11" (333mm) of precipitation is accumulated.

Snowfall

In San Isidro, snow does not fall in March through December.

Daylight

The average length of the day in August in San Isidro, Texas, is 13h and 3min.
On the first day of August in San Isidro, Texas, sunrise is at 6:59 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:54 pm CDT.

Sunshine

The average sunshine in August is 9.7h.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 8. A UV Index of 8 to 10 symbolizes a very high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: During August, 8 as the daily maximum UV index converts into the following advice:
Immediate damage can occur to skin and eyes if left unprotected. Always take necessary precautions. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What are the warmest months in San Isidro?

In San Isidro, August records the average highest temperatures, peaking at 100°F (37.8°C) and reaching a low of 80.1°F (26.7°C).

How hot does it get in San Isidro in August?

In August, in San Isidro, the average high-temperature is 100°F (37.8°C), and the average low-temperature is 80.1°F (26.7°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 122°F (50°C).

What is the least humid month in San Isidro?

With an average relative humidity of 53%, August is the least humid month.

What is the average humidity in August in San Isidro?

In August, the average relative humidity in San Isidro is 53%.

How much does it rain in San Isidro in August?

In San Isidro, Texas, during August, the rain falls for 6.9 days and regularly aggregates up to 0.63" (16mm) of precipitation.

When it does not snow in San Isidro?

March through December are months without snowfall.

What is the average length of the day in August in San Isidro?

In San Isidro, Texas, the average day length in August is 13h and 3min.

When is the sunrise / sunset in August in San Isidro?

On the first day of August, sunrise is at 6:59 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:54 pm CDT.

How many hours of sunshine does San Isidro have in August?

The average sunshine duration in August in San Isidro, Texas, is 9.7h.

What is the month with the highest UV index in San Isidro?

July and August, with an average maximum UV index of 8, are months with the highest UV index in San Isidro, Texas.

What is the UV index intensity in August in San Isidro?

The average daily maximum UV index in August in San Isidro, Texas, is 8. A UV Index of 8 to 10 symbolizes a very high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
San Isidro, TX

Average temperature in August - San Isidro, TX
  • Average high temperature in August: 100°F

The warmest month (with the highest average high temperature) is August (100°F).
The month with the lowest average high temperature is January (69.8°F).

  • Average low temperature in August: 80.1°F

The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (52.7°F).

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Average pressure in August
San Isidro, TX

Average pressure in August - San Isidro, TX
  • Average pressure in August: 29.9"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).

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Average wind speed in August
San Isidro, TX

Average wind speed in August - San Isidro, TX
  • Average wind speed in August: 12.4mph

The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is December (9.2mph).

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Average humidity in August
San Isidro, TX

Average humidity in August - San Isidro, TX
  • Average humidity in August: 53%

The month with the highest relative humidity is December (65%).
The month with the lowest relative humidity is August (53%).

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Average rainfall in August
San Isidro, TX

Average rainfall in August - San Isidro, TX
  • Average rainfall in August: 0.63"

The wettest month (with the highest rainfall) is September (2.56").
The driest month (with the least rainfall) is February (0.47").

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Average rainfall days in August
San Isidro, TX

Average rainfall days in August - San Isidro, TX
  • Average rainfall days in August: 6.9 days

The month with the highest number of rainy days is September (15.3 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall days in August
San Isidro, TX

Average snowfall days in August - San Isidro, TX
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in August /
Average sunshine in August
San Isidro, TX

Average daylight in August / Average sunshine in August - San Isidro, TX
  • Average daylight in August: 13h and 1min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in August: 9h and 4min

The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in August
San Isidro, TX

Average sunshine days in August - San Isidro, TX
  • Average sunshine days in August: 22.6 days

The months with the most sunshine days are July and August (22.6 days).
The month with the least sunshine days is September (12.9 days).

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Average UV index in August
San Isidro, TX

Average UV index in August - San Isidro, TX
  • Average UV index in August: 8

The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).

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Average cloud cover in August
San Isidro, TX

Average cloud cover in August - San Isidro, TX
  • Average cloud cover in August: 16

The month with the most cloud cover is December (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in August
San Isidro, TX

Average visibility in August - San Isidro, TX
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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San Isidro, Texas, USA

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