August weather forecast
Harlingen, TX

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Weather in August

The last month of the summer, August, is a torrid month in Harlingen, Texas, with an average temperature varying between 95°F (35°C) and 80.1°F (26.7°C).

Temperature

Harlingen records the warmest temperatures in August, averaging a high of 95°F (35°C) and a low of 80.1°F (26.7°C).

Heat index

The heat index value during August is estimated at a burning hot 118.4°F (48°C). Careful: Heat exhaustion and heat cramps are anticipated. With ongoing exertion, heatstroke becomes a possibility.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The least humid month is August, with an average relative humidity of 65%.

Rainfall

In August, the rain falls for 6 days. Throughout August, 0.31" (8mm) of precipitation is accumulated. In Harlingen, during the entire year, the rain falls for 79.8 days and collects up to 5.24" (133mm) of precipitation.

Snowfall

In Harlingen, snow does not fall in January, March through December.

Daylight

In Harlingen, the average length of the day in August is 13h and 2min.
On the first day of August, sunrise is at 6:56 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 7:51 pm CDT.

Sunshine

In Harlingen, the average sunshine in August is 10.1h.

UV index

In Harlingen, the average daily maximum UV index in August is 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in August transforms into the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest in Harlingen?

In Harlingen, August is known for its average highest temperatures, reaching a high of 95°F (35°C) and a low of 80.1°F (26.7°C).

How hot is it in August?

Harlingen in August has an average high-temperature of 95°F (35°C) and an average low-temperature of 80.1°F (26.7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is estimated at 118.4°F (48°C).

What is the least humid month?

August is the least humid month, with an average relative humidity of 65%.

What is the average humidity in August?

In Harlingen, the average relative humidity in August is 65%.

How much does it rain in August?

In August, the rain falls for 6 days. Throughout August, 0.31" (8mm) of precipitation is accumulated.

When it does not snow?

January, March through December are months without snowfall.

How many hours of daylight does Harlingen have in August?

In August, the average day length is 13h and 2min.

When are sunrise and sunset in August in Harlingen?

In August, on the first day of the month, sunrise is at 6:56 am and sunset at 8:17 pm. On the last day of the month, in Harlingen, sunrise is at 7:10 am and sunset at 7:51 pm CDT.

How many hours of sunshine does Harlingen have in August?

In August, the average sunshine duration is 10.1h.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to 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
Harlingen, TX

Average temperature in August - Harlingen, TX
  • Average high temperature in August: 95°F

The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (68.7°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 (55.4°F).

Average pressure in August
Harlingen, TX

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in August
Harlingen, TX

Average wind speed in August - Harlingen, TX
  • Average wind speed in August: 10.2mph

The windiest months (with the highest average wind speed) are March and April (12.1mph).
The calmest month (with the lowest average wind speed) is September (8.9mph).

Average humidity in August
Harlingen, TX

Average humidity in August - Harlingen, TX
  • Average humidity in August: 65%

The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (65%).

Average rainfall in August
Harlingen, TX

Average rainfall in August - Harlingen, TX
  • Average rainfall in August: 0.31"

The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is February (0.16").

Average rainfall days in August
Harlingen, TX

Average rainfall days in August - Harlingen, TX
  • Average rainfall days in August: 6 days

The month with the highest number of rainy days is September (11.5 days).
The month with the least rainy days is February (4.7 days).

Average snowfall days in August
Harlingen, TX

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

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

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

Average daylight in August / Average sunshine in August - Harlingen, TX
  • Average daylight in August: 13h and 0min

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: 10h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in August
Harlingen, TX

Average sunshine days in August - Harlingen, TX
  • Average sunshine days in August: 22.8 days

The month with the most sunshine days is March (23.3 days).
The month with the least sunshine days is September (15.6 days).

Average UV index in August
Harlingen, TX

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

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

Average cloud cover in August
Harlingen, TX

Average cloud cover in August - Harlingen, TX
  • Average cloud cover in August: 18

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 18).

Average visibility in August
Harlingen, TX

Average visibility in August - Harlingen, 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).

Harlingen, Texas, USA

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