August weather forecast
Slidell, LA

Weather in August

The last month of the summer, August, is also a hot month in Slidell, Louisiana, with an average temperature fluctuating between 77.4°F (25.2°C) and 90.7°F (32.6°C).

Temperature

In August, the average high-temperature is relatively the same as in July - a still hot 90.7°F (32.6°C). In Slidell, the average low-temperature is 77.4°F (25.2°C).

Heat index

The average heat index in August is computed to be an extremely hot 111.2°F (44°C). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, differences in body mass, height, and shape, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In August, the average relative humidity is 74%.

Rainfall

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

Snowfall

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

Daylight

In August, the average length of the day is 13h and 13min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:53 pm. On the last day of August, sunrise is at 6:35 am and sunset at 7:23 pm CDT.

Sunshine

In August, the average sunshine in Slidell 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 estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.
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FAQ

What is the temperature in August in Slidell?

In Slidell, Louisiana, in August, the average high-temperature is 90.7°F (32.6°C), and the average low-temperature is 77.4°F (25.2°C). in August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 111.2°F (44°C).

What is the average humidity in August in Slidell?

The average relative humidity in August is 74%.

What is the wettest month in Slidell?

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

How much does it rain in Slidell in August?

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

When it does not snow in Slidell?

February through December are months without snowfall in Slidell, Louisiana.

How many hours of daylight does Slidell have in August?

In August, the average day length in Slidell, Louisiana, is 13h and 13min.

When is the sunrise / sunset in August in Slidell?

In August, on the first day of the month, sunrise is at 6:17 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:23 pm CDT.

How long on average sun shines in August in Slidell?

The average sunshine duration in August is 10.9h.

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

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

How high is the UV index in August in Slidell?

In Slidell, the average daily maximum UV index in August is 7. A UV Index reading of 6 to 7 represents a high health vulnerability 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
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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