August weather forecast
Slidell, LA

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Weather in August

The warmth continues into August, with practically no change from the high temperatures of July. From a climatological perspective, it's intriguing to observe that despite the slight dip in average high temperatures to 90.7°F (32.6°C), the average low increases to 77.4°F (25.2°C). The warmer nights of August differentiate this month's weather against other summer months in Slidell, Louisiana. It does rain, but not without the sun having its fair share of the sky, making this month the quintessence of balanced summer weather.

Temperature

August's onset records an average high-temperature of a still hot 90.7°F (32.6°C), a near match to July's 90.9°F (32.7°C). In August, Slidell experiences an average nighttime temperature of 77.4°F (25.2°C).

Heat index

For August, the heat index is evaluated at a scorching 111.2°F (44°C). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.
Realize that the values for the heat index are set for shaded places and light winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In Slidell, the average relative humidity in August is 74%.

Rainfall

The month with the most rainfall is August, when the rain falls for 23.5 days and typically aggregates up to 4.92" (125mm) of precipitation.

Snowfall

February through December are months without snowfall in Slidell.

Daylight

The average length of the day in August is 13h and 13min.
On the first day of August, sunrise is at 6:18 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:22 pm CDT.

Sunshine

The average sunshine in August is 10.9h.

UV index

May 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 vulnerability from unsafe exposure to UV radiation for the average person.
Note: In August, a regular UV index of 7 translates into these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

How hot is it in August?

In August, in Slidell, the average high-temperature is 90.7°F (32.6°C), and the average low-temperature is 77.4°F (25.2°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is evaluated at 111.2°F (44°C).

What is the average humidity in August?

The average relative humidity in August is 74%.

What is the wettest month in Slidell?

August is the month with the most rainfall. Rain falls for 23.5 days and accumulates 4.92" (125mm) of precipitation.

How much does it rain in August?

In August, the rain falls for 23.5 days. Throughout August, 4.92" (125mm) of precipitation is accumulated.

When it does not snow?

In Slidell, snow does not fall in February through December.

How many hours of daylight does Slidell have in August?

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

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:18 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:22 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.9h.

What are the months with the highest UV index?

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

How high is the UV index in August in Slidell?

In August, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health threat 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
Slidell, LA

Average temperature in August - Slidell, LA
  • Average high temperature in August: 90.7°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (59.4°F).

  • Average low temperature in August: 77.4°F

The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).

Average pressure in August
Slidell, LA

Average pressure in August - Slidell, LA
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

Average wind speed in August
Slidell, LA

Average wind speed in August - Slidell, LA
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).

Average humidity in August
Slidell, LA

Average humidity in August - Slidell, LA
  • Average humidity in August: 74%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Slidell, LA

Average rainfall in August - Slidell, LA
  • Average rainfall in August: 4.92"

The wettest month (with the highest rainfall) is August (4.92").
The driest month (with the least rainfall) is November (1.5").

Average rainfall days in August
Slidell, LA

Average rainfall days in August - Slidell, LA
  • Average rainfall days in August: 23.5 days

The month with the highest number of rainy days is August (23.5 days).
The month with the least rainy days is November (8 days).

Average snowfall in August
Slidell, LA

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

The month with the highest snowfall is January (0.2").
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
Slidell, LA

Average snowfall days in August - Slidell, LA
  • 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, October and November (0 days).

Average daylight in August /
Average sunshine in August
Slidell, LA

Average daylight in August / Average sunshine in August - Slidell, LA
  • Average daylight in August: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in August: 10h and 5min

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

Average sunshine days in August
Slidell, LA

Average sunshine days in August - Slidell, LA
  • Average sunshine days in August: 5.1 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (5.1 days).

Average UV index in August
Slidell, LA

Average UV index in August - Slidell, LA
  • Average UV index in August: 7

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

Average cloud cover in August
Slidell, LA

Average cloud cover in August - Slidell, LA
  • Average cloud cover in August: 28

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).

Average visibility in August
Slidell, LA

Average visibility in August - Slidell, LA
  • 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).

Slidell, Louisiana, USA

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