Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The start of May signals a slight increase in the average high-temperature, moving from 76.6°F (24.8°C) in April to a still moderately hot 82.9°F (28.3°C). Throughout the month of May, the nighttime temperature dips to an average of 70.9°F (21.6°C).Heat index
The heat index value for May is evaluated at a hot 89.6°F (32°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
The average relative humidity in May is 74%.Rainfall
In Southport, in May, it is raining for 8.6 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, there are 104.1 rainfall days, and 8.39" (213mm) of precipitation is accumulated.Daylight
In Southport, the average length of the day in May is 13h and 40min.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 6:00 am and sunset at 7:56 pm CDT.
Sunshine
The average sunshine in May is 10.5h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, the average maximum UV index of 7 translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. 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. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in May?
What is the average humidity in May?
How many days does it rain in May?
How many hours of daylight does Southport have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Southport have in May?
When is the highest UV index?
What is the UV index intensity in May?
Average temperature in May
Southport, LA
- Average high temperature in May: 82.9°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (60.4°F).
- Average low temperature in May: 70.9°F
The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (47.8°F).
Average pressure in May
Southport, LA
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).
Average wind speed in May
Southport, LA
- Average wind speed in May: 8mph
The windiest months (with the highest average wind speed) are February and April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in May
Southport, LA
- Average humidity in May: 74%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Southport, LA
- Average rainfall in May: 0.75"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is March (0.39").
Average rainfall days in May
Southport, LA
- Average rainfall days in May: 8.6 days
The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is November (4.5 days).
Average daylight in May /
Average sunshine in May
Southport, LA
- Average daylight in May: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- 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
Southport, LA
- Average sunshine days in May: 19.7 days
The month with the most sunshine days is November (24.6 days).
The month with the least sunshine days is August (10.3 days).
Average UV index in May
Southport, LA
- Average UV index in May: 7
The 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).
Average cloud cover in May
Southport, LA
- Average cloud cover in May: 26
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in May
Southport, 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).
Southport, Louisiana, USA
Weather forecast for your location
2. Allow the app to use your location