August weather forecast
Karnack, TX

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Weather in August

The last month of the summer, August, is another hot month in Karnack, Texas, with temperature in the range of an average high of 94.6°F (34.8°C) and an average low of 73°F (22.8°C).

Temperature

Karnack experiences an average high-temperature of a tropical 94.6°F (34.8°C) with the onset of August, subtly varied from July's 95°F (35°C). Karnack anticipates an average minimum temperature of 73°F (22.8°C) in the month of August.

Heat index

The heat index value for August is computed to be a blazing hot 118.4°F (48°C). Stay watchful: Heat exhaustion along with heat cramps are likely. Ongoing effort may cause heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

With an average relative humidity of 67%, August is the least humid month in Karnack.

Rainfall

In August, the rain falls for 14.5 days. Throughout August, 2.09" (53mm) of precipitation is accumulated. In Karnack, during the entire year, the rain falls for 143.1 days and collects up to 27.32" (694mm) of precipitation.

Snowfall

In Karnack, Texas, snow does not fall in April through November.

Daylight

The average length of the day in August is 13h and 19min.
On the first day of the month, sunrise is at 6:31 am and sunset at 8:14 pm. On the last day of August, in Karnack, sunrise is at 6:51 am and sunset at 7:42 pm CDT.

Sunshine

With an average of 10.6h of sunshine, August has the most sunshine of the year in Karnack.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index in Karnack. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, an average UV index of 7 transforms into the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Karnack in August?

In August, the average high-temperature and low-temperature are 94.6°F (34.8°C) and 73°F (22.8°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, in August is computed to be 118.4°F (48°C).

What is the least humid month in Karnack?

August is the least humid month, with an average relative humidity of 67%.

What is the average humidity in August in Karnack?

The average relative humidity in August is 67%.

How many days does it rain in August in Karnack?

In August, in Karnack, Texas, the rain falls for 14.5 days. Throughout August, 2.09" (53mm) of precipitation is accumulated.

When it does not snow in Karnack?

April through November are months without snowfall in Karnack, Texas.

What is the average length of the day in August in Karnack?

The average day length in August is 13h and 19min.

When is the sunrise / sunset in August in Karnack?

On the first day of August in Karnack, sunrise is at 6:31 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 7:42 pm CDT.

What month has the most sunshine in Karnack?

With an average of 10.6h of sunshine, August has the most sunshine of the year in Karnack, Texas.

How many hours of sunshine does Karnack have in August?

The average sunshine duration in August in Karnack is 10.6h.

When is the highest UV index in Karnack?

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

What is the UV index intensity in August in Karnack?

In August, the average daily maximum UV index in Karnack, Texas, is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
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
Karnack, TX

Average temperature in August - Karnack, TX
  • Average high temperature in August: 94.6°F

The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is January (54°F).

  • Average low temperature in August: 73°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

Average pressure in August
Karnack, TX

Average pressure in August - Karnack, TX
  • Average pressure in August: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Karnack, TX

Average wind speed in August - Karnack, TX
  • Average wind speed in August: 5.1mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in August
Karnack, TX

Average humidity in August - Karnack, TX
  • Average humidity in August: 67%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (67%).

Average rainfall in August
Karnack, TX

Average rainfall in August - Karnack, TX
  • Average rainfall in August: 2.09"

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is September (1.38").

Average rainfall days in August
Karnack, TX

Average rainfall days in August - Karnack, TX
  • Average rainfall days in August: 14.5 days

The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is October (8.6 days).

Average snowfall in August
Karnack, TX

Average snowfall in August - Karnack, TX
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Karnack, TX

Average snowfall days in August - Karnack, TX
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Karnack, TX

Average daylight in August / Average sunshine in August - Karnack, TX
  • Average daylight in August: 13h and 2min

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

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in August
Karnack, TX

Average sunshine days in August - Karnack, TX
  • Average sunshine days in August: 14 days

The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is July (13.3 days).

Average UV index in August
Karnack, TX

Average UV index in August - Karnack, TX
  • Average UV index in August: 7

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

Average cloud cover in August
Karnack, TX

Average cloud cover in August - Karnack, TX
  • Average cloud cover in August: 27

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in August
Karnack, TX

Average visibility in August - Karnack, TX
  • Average visibility in August: 6mi

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).

Karnack, Texas, USA

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