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 ranging between min 79.5°F (26.4°C) and max 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 is appraised at a scorching 106.2°F (41.2°C). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
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 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like clothing, pregnancy, metabolic differences, 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 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.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. 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 73%.

Rainfall

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

Snowfall

February through December are months without snowfall in New Orleans, Louisiana.

Daylight

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

Sunshine

In August, the average sunshine is 10.6h.

UV index

Months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 7 in August interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. 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 are the warmest months 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 New Orleans, in August, the average high-temperature is 89.4°F (31.9°C), and the average low-temperature is 79.5°F (26.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines both air temperature and relative humidity, in August is appraised 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, during August, the rain falls for 17.2 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When it does not snow in New Orleans?

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

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

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

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

The average sunshine in August is 10.6h.

When is the highest UV index in New Orleans?

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

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

In August, the average daily maximum UV index in New Orleans is 7. A UV Index of 6 to 7 symbolizes a high health threat 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: 89.4°F

The warmest months (with the highest average high temperature) are July and August (89.4°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in August: 79.5°F

The month with the highest average low temperature is August (79.5°F).
The coldest month (with the lowest average low temperature) is January (48.6°F).

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Average pressure in August
New Orleans, LA

Average pressure in August - New Orleans, LA
  • Average pressure in August: 29.97"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June, August and September (29.97").

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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: 6.7mph

The windiest months (with the highest average wind speed) are February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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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: 1.46"

The wettest month (with the highest rainfall) is July (1.57").
The driest months (with the least rainfall) are March and April (0.43").

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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: 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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