August weather forecast and climate
New Orleans, LA

Commuter buses on the street in New Orleans, Louisiana
Commuter buses on the street in New Orleans, Louisiana

Weather in August

August, the last month of the summer, in New Orleans, is another tropical month, with average temperature fluctuating between 79.5°F (26.4°C) and 89.4°F (31.9°C).

Temperature

July and August, with an average high-temperature of 89.4°F (31.9°C), are the warmest months.

Heat index

The average heat index in August is evaluated at a blistering 106.2°F (41.2°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased 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 calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, metabolic differences, wind), and activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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 surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In August, the average relative humidity in New Orleans is 73%.

Rainfall

In August, the rain falls for 17.2 days. Throughout August, 1.46" (37mm) of precipitation is accumulated. In New Orleans, Louisiana, during the entire year, the rain falls for 112.1 days and collects up to 9.37" (238mm) of precipitation.

Snowfall

In New Orleans, Louisiana, snow does not fall in February through December.

Daylight

In New Orleans, Louisiana, the average length of the day is 13.2h.

Sunshine

In New Orleans, the average sunshine is 10.6h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in New Orleans. A UV Index reading of 6 to 7 represents a high health risk from the 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 and utilize sun safety practices. Protection against the 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 warmest month in New Orleans?

Warmest months in New Orleans are July and August, with an average high-temperature of 89.4°F (31.9°C).

What is the temperature in August in New Orleans?

In August, in New Orleans, the average high-temperature is 89.4°F (31.9°C), and the average low-temperature is 79.5°F (26.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 106.2°F (41.2°C).

What is the average humidity in August in New Orleans?

The average relative humidity in August in New Orleans, Louisiana, is 73%.

How many days does it rain in August in New Orleans?

In New Orleans, Louisiana, in August, it is raining for 17.2 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow in New Orleans?

In New Orleans snow does not fall in February through December.

What is the average length of the day in August in New Orleans?

The average length of the day in August in New Orleans is 13.2h.

How many hours of sunshine does New Orleans have in August?

The average sunshine in August is 10.6h.

What is the month with the highest UV index in New Orleans?

Months with the highest UV index are May through September, with an average maximum UV index of 7.

What is the UV index intensity in August in New Orleans?

In New Orleans, the average daily maximum UV index in August is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV rays.

Average temperature in August
New Orleans, LA

Average temperature in August - New Orleans, LA
  • Average high temperature in August: 31.9°C

The warmest months (with the highest average high temperature) are July and August (31.9°C).
The month with the lowest average high temperature is January (15.8°C).

  • Average low temperature in August: 26.4°C

The month with the highest average low temperature is August (26.4°C).
The coldest month (with the lowest average low temperature) is January (9.2°C).

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Average pressure in August
New Orleans, LA

Average pressure in August - New Orleans, LA
  • Average pressure in August: 1014.9mbar

The month with the highest atmospheric pressure is January (1021.4mbar).
Months with the lowest atmospheric pressure are June and August (1014.9mbar).

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Average wind speed in August
New Orleans, LA

Average wind speed in August - New Orleans, LA
  • Average wind speed in August: 10.8km/h

The windiest month (with the highest average wind speed) is April (15.8km/h).
The calmest month (with the lowest average wind speed) is July (10.6km/h).

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Average humidity in August
New Orleans, LA

Average humidity in August - New Orleans, LA
  • Average humidity in August: 73%

Months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
New Orleans, LA

Average rainfall in August - New Orleans, LA
  • Average rainfall in August: 37mm

The wettest month (with the highest rainfall) is July (40mm).
The driest months (with the least rainfall) are March and April (11mm).

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Average rainfall days in August
New Orleans, LA

Average rainfall days in August - New Orleans, LA
  • Average rainfall days in August: 17.2 days

The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is November (4.7 days).

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Average snowfall days in August
New Orleans, LA

Average snowfall days in August - New Orleans, LA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.1 days).
Months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in August /
Average sunshine in August
New Orleans, LA

Average daylight in August / Average sunshine in August - New Orleans, 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: 10.6h

The month with the most sunshine is June (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 5.1h).

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Average sunshine days in August
New Orleans, LA

Average sunshine days in August - New Orleans, LA
  • Average sunshine days in August: 8.9 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is August (8.9 days).

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Average UV index in August
New Orleans, LA

Average UV index in August - New Orleans, LA
  • Average UV index in August: 7

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

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Average cloud cover in August
New Orleans, LA

Average cloud cover in August - New Orleans, LA
  • Average cloud cover in August: 28

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in August
New Orleans, LA

Average visibility in August - New Orleans, LA
  • Average visibility in August: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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