August weather forecast
Kirby, TX

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Weather in August

August, the last month of the summer in Kirby, is a torrid month, with an average temperature fluctuating between 96.6°F (35.9°C) and 75°F (23.9°C).

Temperature

August is the warmest month, with the temperature often reaching an average high of 96.6°F (35.9°C) and an average low of 75°F (23.9°C).

Heat index

August's mean heat index is estimated at a life-threatening hot 116.6°F (47°C). Stay alert: Heat cramps and heat exhaustion are expected. Heatstroke is a likely outcome of ongoing activity.
Given the heat index, its values are aligned with shaded sites and gentle winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

August is the least humid month, with an average relative humidity of 59%.

Rainfall

In August, the rain falls for 9.3 days. Throughout August, 1.54" (39mm) of precipitation is accumulated. In Kirby, Texas, during the entire year, the rain falls for 155.9 days and collects up to 22.76" (578mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

In August, the average length of the day is 13h and 10min.
On the first day of August, sunrise is at 6:54 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 7:56 pm CDT.

Sunshine

In August, the average sunshine is 9.8h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: During August, 7 as the daily maximum UV index converts into the following advice:
Resist overexposure. Safeguarding from solar damage is indispensable. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

Kirby's temperatures tend to reach their peak averages in August, with a high of 96.6°F (35.9°C) and a low of 75°F (23.9°C).

How hot does it get in August?

An average high-temperature, in August, in Kirby, is 96.6°F (35.9°C) and the average low-temperature is 75°F (23.9°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is estimated at 116.6°F (47°C).

What is the least humid month?

With an average relative humidity of 59%, August is the least humid month.

What is the average humidity in August in Kirby?

The average relative humidity in August is 59%.

How many days does it rain in August?

In Kirby, during August, the rain falls for 9.3 days and regularly aggregates up to 1.54" (39mm) of precipitation.

When it does not snow?

In Kirby, snow does not fall in March through December.

What is the average length of the day in August?

In August, the average day length is 13h and 10min.

When is the sunrise / sunset in August?

On the first day of August in Kirby, sunrise is at 6:54 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 7:56 pm CDT.

How long on average sun shines in August?

In Kirby, the average sunshine duration in August is 9.8h.

When is the highest UV index?

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

What is the UV index intensity in August?

The average daily maximum UV index in August is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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
Kirby, TX

Average temperature in August - Kirby, TX
  • Average high temperature in August: 96.6°F

The warmest month (with the highest average high temperature) is August (96.6°F).
The month with the lowest average high temperature is January (61.2°F).

  • Average low temperature in August: 75°F

The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

Average pressure in August
Kirby, TX

Average pressure in August - Kirby, TX
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in August
Kirby, TX

Average wind speed in August - Kirby, TX
  • Average wind speed in August: 6.9mph

The windiest months (with the highest average wind speed) are February, March, April and May (8.8mph).
The calmest month (with the lowest average wind speed) is September (6.4mph).

Average humidity in August
Kirby, TX

Average humidity in August - Kirby, TX
  • Average humidity in August: 59%

The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (59%).

Average rainfall in August
Kirby, TX

Average rainfall in August - Kirby, TX
  • Average rainfall in August: 1.54"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.94").

Average rainfall days in August
Kirby, TX

Average rainfall days in August - Kirby, TX
  • Average rainfall days in August: 9.3 days

The month with the highest number of rainy days is May (18 days).
The months with the least rainy days are January and August (9.3 days).

Average snowfall in August
Kirby, TX

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

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

Average snowfall days in August
Kirby, TX

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

The month with the highest number of snowfall days is February (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in August / Average sunshine in August - Kirby, 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: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in August
Kirby, TX

Average sunshine days in August - Kirby, TX
  • Average sunshine days in August: 18.3 days

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is May (10.2 days).

Average UV index in August
Kirby, TX

Average UV index in August - Kirby, 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
Kirby, TX

Average cloud cover in August - Kirby, TX
  • Average cloud cover in August: 25

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in August
Kirby, TX

Average visibility in August - Kirby, 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).

Kirby, Texas, USA

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