May 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 May

May, the last month of the spring, in New Orleans, is another warm month, with average temperature varying between 82.9°F (28.3°C) and 71.2°F (21.8°C).

Temperature

In New Orleans, the average high-temperature marginally rises, from a warm 77°F (25°C) in April, to a still moderately hot 82.9°F (28.3°C). In New Orleans, the average low-temperature is 71.2°F (21.8°C).

Heat index

In May, the average heat index is estimated at a tropical 89.1°F (31.7°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
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', 'feels like', 'real feel', or 'felt air temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, clothing, metabolic differences), and activity. 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.

Humidity

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

Rainfall

In May, the rain falls for 8.6 days. Throughout May, 0.75" (19mm) of precipitation is accumulated. 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.

Daylight

In May, the average length of the day is 13.7h.

Sunshine

The average sunshine in May 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 reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV rays for the average person.
Note: In May, the average maximum UV index of 7 translate into the following recommendations:
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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in May in New Orleans?

In May, in New Orleans, the average high-temperature is 82.9°F (28.3°C), and the average low-temperature is 71.2°F (21.8°C). In May, the average heat index (a.k.a. 'feels like', 'real feel'), that combines both air temperature and relative humidity, is appraised at 89.1°F (31.7°C).

What is the average humidity in May in New Orleans?

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

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

In New Orleans, in May, it is raining for 8.6 days, with typically 0.75" (19mm) of accumulated 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 May?

The average length of the day in May in New Orleans, Louisiana, is 13.7h.

How long on average sun shines in May in New Orleans?

In New Orleans, the average sunshine in May is 10.6h.

What are the months with the highest UV index in New Orleans?

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

How high is the UV index in May in New Orleans?

The average daily maximum UV index in May in New Orleans, Louisiana, is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the UV radiation.

Average temperature in May
New Orleans, LA

Average temperature in May - New Orleans, LA
  • Average high temperature in May: 82.9°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 May: 71.2°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 May
New Orleans, LA

Average pressure in May - New Orleans, LA
  • Average pressure in May: 29.99"

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 May
New Orleans, LA

Average wind speed in May - New Orleans, LA
  • Average wind speed in May: 8.2mph

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 May
New Orleans, LA

Average humidity in May - New Orleans, LA
  • Average humidity in May: 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 May
New Orleans, LA

Average rainfall in May - New Orleans, LA
  • Average rainfall in May: 0.75"

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 May
New Orleans, LA

Average rainfall days in May - New Orleans, LA
  • Average rainfall days in May: 8.6 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 May
New Orleans, LA

Average snowfall days in May - New Orleans, LA
  • Average snowfall days in May: 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 May /
Average sunshine in May
New Orleans, LA

Average daylight in May / Average sunshine in May - New Orleans, LA
  • Average daylight in May: 13.7h

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 May: 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 May
New Orleans, LA

Average sunshine days in May - New Orleans, LA
  • Average sunshine days in May: 19.3 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 May
New Orleans, LA

Average UV index in May - New Orleans, LA
  • Average UV index in May: 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 May
New Orleans, LA

Average cloud cover in May - New Orleans, LA
  • Average cloud cover in May: 26

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 May
New Orleans, LA

Average visibility in May - New Orleans, LA
  • Average visibility in May: 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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