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 also a moderately hot month, with average temperature varying between 71.2°F (21.8°C) and 82.9°F (28.3°C).

Temperature

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

Heat index

In May, the average heat index is evaluated at a hot 89.1°F (31.7°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
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 'felt air temperature', 'feels like', 'apparent temperature', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like clothing, wind, metabolic differences, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.

Humidity

The average relative humidity in New Orleans is 73%.

Rainfall

In New Orleans, during May, the rain falls for 8.6 days and regularly aggregates up to 0.75" (19mm) of 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

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

Daylight

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

Sunshine

In May, 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 of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. 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. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 89.1°F (31.7°C).

What is the average humidity in May in New Orleans?

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

How much does it rain in New Orleans in May?

In New Orleans, Louisiana, during May, the rain falls for 8.6 days and regularly aggregates up to 0.75" (19mm) of precipitation.

When it does not snow in New Orleans?

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

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

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

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

The average sunshine in May is 10.6h.

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

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

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

In New Orleans, Louisiana, the average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV radiation.

Average temperature in May
New Orleans, LA

Average temperature in May - New Orleans, LA
  • Average high temperature in May: 28.3°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 May: 21.8°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 May
New Orleans, LA

Average pressure in May - New Orleans, LA
  • Average pressure in May: 1015.7mbar

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 May
New Orleans, LA

Average wind speed in May - New Orleans, LA
  • Average wind speed in May: 13.2km/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 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: 19mm

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 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: 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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