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

The shift into August uncovers an average high-temperature of a still tropical 90.7°F (32.6°C), subtly different from the previous month. Nightly temperatures drop to an average low of 77.4°F (25.2°C) in August.

Heat index

The heat index in August is calculated to be a blisteringly hot 111.2°F (44°C). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
When considering the heat index, it's pivotal to note it is for shade and mild 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' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. 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. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in August is 74%.

Rainfall

August is the month with the most rainfall. 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 Slidell, 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

In August, the average sunshine 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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily maximum UV index of 7 in August translates into the following instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

How hot is it in August?

The high-temperature, in August, in Slidell, is 90.7°F (32.6°C), while the low-temperature averages to 77.4°F (25.2°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 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?

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.

How many days does it rain in August?

In Slidell, in August, it is raining for 23.5 days, with typically 4.92" (125mm) of accumulated precipitation.

When it does not snow?

February through December are months without snowfall.

How many hours of daylight does Slidell have in August?

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

When are sunrise and sunset in August?

In August, on the first day of the month, 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 is the month 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.

What is the UV index intensity in August?

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