August weather forecast and climate
Slidell, LA

Weather in August

The last month of the summer, August, is another tropical month in Slidell, Louisiana, with temperature in the range of an average low of 77.4°F (25.2°C) and an average high of 90.7°F (32.6°C).

Temperature

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

Heat index

In August, the average heat index is evaluated at a scorching 111°F (43.9°C). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like wind, pregnancy, clothing, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

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

In Slidell snow does not fall in February through December.

Daylight

The average length of the day in Slidell is 13.2h.

Sunshine

The average sunshine is 10.9h.

UV index

Months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect 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.
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FAQ

What is the temperature in August in Slidell?

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). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that takes the relative humidity and factores it into the air temperature reading, in August is calculated to 111°F (43.9°C).

What is the average humidity in August in Slidell?

The average relative humidity in August in Slidell, Louisiana, is 74%.

How much does it rain in Slidell in August?

In Slidell, Louisiana, during August, the rain falls for 23.5 days and regularly aggregates up to 4.92" (125mm) of precipitation.

What is the wettest month in Slidell?

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.

When it does not snow in Slidell?

In Slidell snow does not fall in February through December.

What is the average length of the day in August in Slidell?

In Slidell, Louisiana, the average length of the day in August is 13.2h.

How many hours of sunshine does Slidell have in August?

In Slidell, Louisiana, the average sunshine in August is 10.9h.

What is the month with the highest UV index in Slidell?

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?

The average daily maximum UV index in August is 7. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to the UV radiation.

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"

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

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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").
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).
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: 13.2h

The month with the longest days is June (Average daylight: 14.1h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in August: 10.9h

The month with the most sunshine is June (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 5.1h).

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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

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

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

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