May weather forecast
Mandeville, LA

Share

Weather in May

May boasts a palpable shift into summer in Mandeville, Louisiana as temperatures rise from 68.2°F (20.1°C) right up to 84°F (28.9°C). This increase in heat results in a climatic shift, favoring outdoor activities under the prolonged daylight stretching up to 13.7 hours on average. Humidity covertly inches up as the Summer progresses, leading to balmy nights. Despite the sunshine, the rain doesn't entirely hold back, with the city experiencing 14.8 days of precipitation adding to the overall moisture content in the atmosphere. May's comfortably hot temperature coupled with significant rainfall marks a definite move to a warmer season.

Temperature

Mandeville in May denotes a subtle temperature transition, adjusting from an average high of a moderately hot 77.5°F (25.3°C) in April to a still warm 84°F (28.9°C). Throughout the month of May, Mandeville expects an average low of 68.2°F (20.1°C).

Heat index

For most parts of May, the heat index is appraised at a tropical 91.4°F (33°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.

Humidity

In May, the average relative humidity is 74%.

Rainfall

In Mandeville, in May, during 14.8 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. Throughout the year, there are 183.7 rainfall days, and 43.94" (1116mm) of precipitation is accumulated.

Snowfall

In Mandeville, snow does not fall in February through December.

Ocean temperature

In May, the average ocean temperature is 76.6°F (24.8°C).
Note: Consideration of an individual's cold resistance, combined with conditions like sunshine, wind, and temperature, suggests that swimming in 76.6°F (24.8°C) water can be delightful. (Olympic swimming is usually in 77°F (25°C) to 82.4°F (28°C) water.)

Daylight

The average length of the day in May is 13h and 42min.
On the first day of the month, sunrise is at 6:16 am and sunset at 7:38 pm. On the last day of May, sunrise is at 5:58 am and sunset at 7:57 pm CDT.

Sunshine

The average sunshine in May is 10.5h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during May translates into the following guidance:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is May?

The high-temperature, in May, in Mandeville, records 84°F (28.9°C), while the low-temperature is 68.2°F (20.1°C). In May, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is appraised at 91.4°F (33°C).

What is the average humidity in May?

In Mandeville, the average relative humidity in May is 74%.

How much does it rain in Mandeville in May?

In May, the rain falls for 14.8 days. Throughout May, 3.62" (92mm) of precipitation is accumulated.

When it does not snow?

February through December are months without snowfall in Mandeville.

How warm is the water in May?

In May, the average ocean temperature is 76.6°F (24.8°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.6°F (24.8°C) water may be enjoyable.

How many hours of daylight does Mandeville have in May?

In Mandeville, the average day length in May is 13h and 42min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:16 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 7:57 pm CDT.

How many hours of sunshine does Mandeville have in May?

In Mandeville, the average sunshine duration in May is 10.5h.

What is the month with the highest UV index?

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

What is the UV index reading in May?

In May, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
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 May
Mandeville, LA

Average temperature in May - Mandeville, LA
  • Average high temperature in May: 84°F

The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (59.2°F).

  • Average low temperature in May: 68.2°F

The months with the highest average low temperature are July and August (76.8°F).
The coldest month (with the lowest average low temperature) is January (44.8°F).

Average pressure in May
Mandeville, LA

Average pressure in May - Mandeville, LA
  • Average pressure in May: 30"Hg

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

Average wind speed in May
Mandeville, LA

Average wind speed in May - Mandeville, LA
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in May
Mandeville, LA

Average humidity in May - Mandeville, LA
  • Average humidity in May: 74%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Mandeville, LA

Average rainfall in May - Mandeville, LA
  • Average rainfall in May: 3.62"

The wettest month (with the highest rainfall) is August (6.73").
The driest month (with the least rainfall) is November (1.93").

Average rainfall days in May
Mandeville, LA

Average rainfall days in May - Mandeville, LA
  • Average rainfall days in May: 14.8 days

The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is November (8.2 days).

Average snowfall in May
Mandeville, LA

Average snowfall in May - Mandeville, LA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in May
Mandeville, LA

Average snowfall days in May - Mandeville, LA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

Average sea temperature in May
Mandeville, LA

Average sea temperature in May - Mandeville, LA
  • Average sea temperature in May: 76.7°F

The best month for swimming (with the highest average sea temperature) is August (86.4°F).
The coldest month (with the lowest average sea temperature) is January (56.6°F).

Average daylight in May /
Average sunshine in May
Mandeville, LA

Average daylight in May / Average sunshine in May - Mandeville, LA
  • Average daylight in May: 13h and 4min

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 May: 10h and 3min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in May
Mandeville, LA

Average sunshine days in May - Mandeville, LA
  • Average sunshine days in May: 14.3 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is August (5.6 days).

Average UV index in May
Mandeville, LA

Average UV index in May - Mandeville, LA
  • Average UV index in May: 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 May
Mandeville, LA

Average cloud cover in May - Mandeville, LA
  • Average cloud cover in May: 28

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 24).

Average visibility in May
Mandeville, LA

Average visibility in May - Mandeville, LA
  • Average visibility in May: 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).

Mandeville, Louisiana, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location