August weather forecast
Karnes City, TX

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Weather in August

The last month of the summer, August, is another very hot month in Karnes City, Texas, with an average temperature ranging between max 96.8°F (36°C) and min 76.3°F (24.6°C).

Temperature

The month of August sees the highest average temperatures, reaching 96.8°F (36°C) at the peak and 76.3°F (24.6°C) at the low.

Heat index

In August, the average heat index is estimated at a burning hot 122°F (50°C). Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

August is the least humid month, with an average relative humidity of 64%.

Rainfall

In Karnes City, in August, it is raining for 9.7 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, there are 152.2 rainfall days, and 21.34" (542mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

In August, the average length of the day is 13h and 9min.
On the first day of August, sunrise is at 6:53 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 7:53 pm CDT.

Sunshine

In August, the average sunshine is 10.1h.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 7 in August translates into the following instructions:
Deter overexposure. Protecting against the sun's effects is essential. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year?

The warmest period is August, when temperatures fluctuate between an average high of 96.8°F (36°C) and a low of 76.3°F (24.6°C).

How hot is it in August?

The average high-temperature, in August, in Karnes City, is 96.8°F (36°C), while the average low-temperature is 76.3°F (24.6°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 122°F (50°C).

What is the least humid month?

With an average relative humidity of 64%, August is the least humid month.

What is the average humidity in August?

In August, the average relative humidity is 64%.

How many days does it rain in August?

In Karnes City, in August, during 9.7 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When it does not snow?

February through December are months without snowfall.

What is the average length of the day in August?

In August, the average day length in Karnes City is 13h and 9min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:53 am and sunset at 8:22 pm. On the last day of the month, in Karnes City, sunrise is at 7:09 am and sunset at 7:53 pm CDT.

How many hours of sunshine does Karnes City have in August?

In Karnes City, the average sunshine duration in August is 10.1h.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Karnes City, TX

Average temperature in August - Karnes City, TX
  • Average high temperature in August: 96.8°F

The warmest month (with the highest average high temperature) is August (96.8°F).
The month with the lowest average high temperature is January (62.8°F).

  • Average low temperature in August: 76.3°F

The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (46°F).

Average pressure in August
Karnes City, TX

Average pressure in August - Karnes City, TX
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in August
Karnes City, TX

Average wind speed in August - Karnes City, TX
  • Average wind speed in August: 7.9mph

The windiest month (with the highest average wind speed) is May (9.8mph).
The calmest month (with the lowest average wind speed) is September (7mph).

Average humidity in August
Karnes City, TX

Average humidity in August - Karnes City, TX
  • Average humidity in August: 64%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is August (64%).

Average rainfall in August
Karnes City, TX

Average rainfall in August - Karnes City, TX
  • Average rainfall in August: 1.26"

The wettest month (with the highest rainfall) is September (2.87").
The driest month (with the least rainfall) is February (0.79").

Average rainfall days in August
Karnes City, TX

Average rainfall days in August - Karnes City, TX
  • Average rainfall days in August: 9.7 days

The month with the highest number of rainy days is September (17.1 days).
The month with the least rainy days is August (9.7 days).

Average snowfall in August
Karnes City, TX

Average snowfall in August - Karnes City, TX
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in August
Karnes City, TX

Average snowfall days in August - Karnes City, TX
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in August /
Average sunshine in August
Karnes City, TX

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in August
Karnes City, TX

Average sunshine days in August - Karnes City, TX
  • Average sunshine days in August: 19.3 days

The month with the most sunshine days is August (19.3 days).
The month with the least sunshine days is September (10.4 days).

Average UV index in August
Karnes City, TX

Average UV index in August - Karnes City, TX
  • Average UV index in August: 7

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in August
Karnes City, TX

Average cloud cover in August - Karnes City, TX
  • Average cloud cover in August: 23

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in August
Karnes City, TX

Average visibility in August - Karnes City, 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).

Karnes City, Texas, USA

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