August weather forecast
Lisbon, LA

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Weather in August

August, the last month of the summer in Lisbon, is also a hot month, with an average temperature fluctuating between 93.7°F (34.3°C) and 72.3°F (22.4°C).

Temperature

Lisbon marks the onset of August with an average high-temperature of a still hot 93.7°F (34.3°C), subtly divergent from July's 93.9°F (34.4°C). An average nighttime temperature of 72.3°F (22.4°C) is witnessed throughout August.

Heat index

August's heat index is calculated to be a burning hot 118.4°F (48°C). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The months with the lowest humidity are July and August, with an average relative humidity of 70%.

Rainfall

In Lisbon, in August, it is raining for 15 days, with typically 2.83" (72mm) of accumulated precipitation. Throughout the year, there are 158.6 rainfall days, and 39.09" (993mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in August is 13h and 19min.
On the first day of the month, sunrise is at 6:25 am and sunset at 8:09 pm. On the last day of August, sunrise is at 6:45 am and sunset at 7:37 pm CDT.

Sunshine

July and August, with an average of 10.4h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily high UV index of 7 in August leads to these guidelines:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

In Lisbon, 93.7°F (34.3°C) is the average high-temperature and 72.3°F (22.4°C) is the average low-temperature during August. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is calculated to be 118.4°F (48°C).

What is the least humid month?

The months with the lowest humidity are July and August, with an average relative humidity of 70%.

What is the average humidity in August?

In August, the average relative humidity is 70%.

How much does it rain in August?

In Lisbon, during August, the rain falls for 15 days and regularly aggregates up to 2.83" (72mm) of precipitation.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 19min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:25 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 7:37 pm CDT.

What is the month with the most sunshine in Lisbon?

July and August, with an average of 10.4h of sunshine, are months with the most sunshine.

How long on average sun shines in August?

In August, the average sunshine duration in Lisbon is 10.4h.

What are the months with the highest UV index in Lisbon?

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 reading of 6 to 7 represents a high hazard to health 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
Lisbon, LA

Average temperature in August - Lisbon, LA
  • Average high temperature in August: 93.7°F

The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is January (53.4°F).

  • Average low temperature in August: 72.3°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

Average pressure in August
Lisbon, LA

Average pressure in August - Lisbon, LA
  • Average pressure in August: 29.95"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Lisbon, LA

Average wind speed in August - Lisbon, LA
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in August
Lisbon, LA

Average humidity in August - Lisbon, LA
  • Average humidity in August: 70%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are July and August (70%).

Average rainfall in August
Lisbon, LA

Average rainfall in August - Lisbon, LA
  • Average rainfall in August: 2.83"

The wettest month (with the highest rainfall) is April (4.25").
The driest month (with the least rainfall) is September (2.2").

Average rainfall days in August
Lisbon, LA

Average rainfall days in August - Lisbon, LA
  • Average rainfall days in August: 15 days

The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is October (10.1 days).

Average snowfall in August
Lisbon, LA

Average snowfall in August - Lisbon, LA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Lisbon, LA

Average snowfall days in August - Lisbon, LA
  • 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
Lisbon, LA

Average daylight in August / Average sunshine in August - Lisbon, LA
  • 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 2min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in August
Lisbon, LA

Average sunshine days in August - Lisbon, LA
  • Average sunshine days in August: 14.1 days

The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is March (13.3 days).

Average UV index in August
Lisbon, LA

Average UV index in August - Lisbon, LA
  • 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 and December (UV index 3).

Average cloud cover in August
Lisbon, LA

Average cloud cover in August - Lisbon, LA
  • Average cloud cover in August: 29

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

Average visibility in August
Lisbon, LA

Average visibility in August - Lisbon, LA
  • Average visibility in August: 6mi

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

Lisbon, Louisiana, USA

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