May weather forecast
Southport, LA

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Weather in May

May, the last month of the spring in Southport, is another warm month, with an average temperature ranging between max 82.9°F (28.3°C) and min 70.9°F (21.6°C).

Temperature

The coming of May brings a minor shift in Southport's weather, with average high-temperatures adjusting from April's 76.6°F (24.8°C) to a still moderately hot 82.9°F (28.3°C). Southport's May nights cool down to an average low-temperature of 70.9°F (21.6°C).

Heat index

The heat index value for May is evaluated at a tropical 89.6°F (32°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
Note that heat index values are valued for light wind and location in the shade. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are primarily vital for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

The average relative humidity in May in Southport is 74%.

Rainfall

In Southport, in May, during 8.6 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Southport, during the entire year, the rain falls for 104.1 days and collects up to 8.39" (213mm) of precipitation.

Daylight

In Southport, Louisiana, the average length of the day in May is 13h and 40min.
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 6:00 am and sunset at 7:56 pm CDT.

Sunshine

The average sunshine in May is 10.5h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 7 in May converts into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

How hot is May in Southport?

The average high-temperature and low-temperature in Southport during May are 82.9°F (28.3°C) and 70.9°F (21.6°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in May is evaluated at 89.6°F (32°C).

What is the average humidity in May in Southport?

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

How much does it rain in Southport in May?

In Southport, Louisiana, in May, it is raining for 8.6 days, with typically 0.75" (19mm) of accumulated precipitation.

What is the average length of the day in May in Southport?

The average day length in May in Southport, Louisiana, is 13h and 40min.

What time are sunrise and sunset in May in Southport?

On the first day of May in Southport, 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.

How many hours of sunshine does Southport have in May?

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

What are the months with the highest UV index in Southport?

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

How high is the UV index in May in Southport?

The average daily maximum UV index in May in Southport is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Southport, LA

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).

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Average pressure in May
Southport, LA

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).

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Average wind speed in May
Southport, LA

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).

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Average humidity in May
Southport, LA

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%).

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Average rainfall in May
Southport, LA

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").

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Average rainfall days in May
Southport, LA

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).

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

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).

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Average sunshine days in May
Southport, LA

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).

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Average UV index in May
Southport, LA

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).

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Average cloud cover in May
Southport, LA

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).

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Average visibility in May
Southport, LA

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).

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Southport, Louisiana, USA

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