Climate and monthly weather forecastSouthport, LA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Southport, Louisiana, is another refreshing winter month, with an average temperature fluctuating between 60.4°F (15.8°C) and 47.8°F (8.8°C). January, with an average high of 60.4°F (15.8°C) and a low of 47.8°F (8.8°C), signifies the coldest month of the year. Weather in January »Weather in February
The last month of the winter, February, is a comfortable month in Southport, Louisiana, with an average temperature varying between 64.4°F (18°C) and 52.5°F (11.4°C). Southport ushers in February with an average high-temperature of a comfortable 64.4°F (18°C), showing a close resemblance to the previous month. Weather in February »Weather in March
The first month of the spring, March, is an agreeable month in Southport, Louisiana, with an average temperature ranging between min 57.7°F (14.3°C) and max 70.7°F (21.5°C). March witnesses a subtle temperature ascent, adjusting from a comfortable 64.4°F (18°C) in February to an agreeable 70.7°F (21.5°C). Weather in March »Weather in April
April in Southport, Louisiana, is a moderately hot spring month, with an average temperature varying between 63.5°F (17.5°C) and 76.6°F (24.8°C). Southport observes a slight uplift in the average high-temperature with the onset of April, adjusting from March's pleasant 70.7°F (21.5°C) to a warm 76.6°F (24.8°C). Weather in April »Weather in May
The last month of the spring, May, is also a moderately hot month in Southport, Louisiana, with temperature in the range of an average low of 70.9°F (21.6°C) and an average high of 82.9°F (28.3°C). 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). Weather in May »Weather in June
June, the first month of the summer in Southport, is a tropical month, with an average temperature fluctuating between 88.3°F (31.3°C) and 77°F (25°C). With the onset of June, Southport's average high-temperature sees a modest rise, moving from May's warm 82.9°F (28.3°C) to a tropical 88.3°F (31.3°C). Weather in June »Weather in July
July, like June, is another hot summer month in Southport, Louisiana, with an average temperature ranging between min 78.4°F (25.8°C) and max 89.2°F (31.8°C). July is the month when Southport experiences its warmest temperatures, averaging a high of 89.2°F (31.8°C) and a low of 78.4°F (25.8°C). For July, the heat index is evaluated at a scorching 107.6°F (42°C). Weather in July »Weather in August
August, the last month of the summer in Southport, is another tropical month, with an average temperature ranging between min 79°F (26.1°C) and max 89.1°F (31.7°C). August experiences an average high-temperature of a still tropical 89.1°F (31.7°C), barely different from July's 89.2°F (31.8°C). Weather in August »Weather in September
September, the first month of the autumn in Southport, is also a hot month, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 75.2°F (24°C). The onset of September manifests an average high-temperature of a still hot 86.5°F (30.3°C), demonstrating a minor variation from the preceding month. Weather in September »Weather in October
October, the same as September, is another warm autumn month in Southport, Louisiana, with an average temperature fluctuating between 78.4°F (25.8°C) and 66.6°F (19.2°C). As Southport enters October, the average high-temperature subtly lowers from the a hot 86.5°F (30.3°C) of September to a warm 78.4°F (25.8°C). Weather in October »Weather in November
The last month of the autumn, November, is also an agreeable month in Southport, Louisiana, with temperature in the range of an average high of 68.9°F (20.5°C) and an average low of 56.5°F (13.6°C). As October transitions to November, the average high-temperature falls from a warm 78.4°F (25.8°C) to a pleasant 68.9°F (20.5°C). Weather in November »Weather in December
December, the first month of the winter in Southport, is still a refreshing month, with an average temperature fluctuating between 63.3°F (17.4°C) and 52°F (11.1°C). Southport experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a pleasant 68.9°F (20.5°C) in November to a refreshing 63.3°F (17.4°C). Weather in December »Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
During the coldest month in Southport, January, temperatures average a high of 60.4°F (15.8°C) and a low of 47.8°F (8.8°C).
Throughout the year, there are 104.1 rainfall days, and 8.39" (213mm) of precipitation is accumulated.
The month with the least rainfall is March, when the rain falls for 8.1 days and typically collects 0.39" (10mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
The months with the highest UV index are May through September, with an average maximum UV index of 7.
With an average of 14h and 0min of daylight, June has the longest days of the year.
With an average of 11h of sunshine, June has the most sunshine of the year.
With average high and low temperatures of 89.2°F (31.8°C) and 78.4°F (25.8°C) respectively, July is Southport's warmest month.
The month with the most rainfall is July, when the rain falls for 13.3 days and typically aggregates up to 1.3" (33mm) of precipitation.
October is the least humid month, with an average relative humidity of 71%.
December is the most humid month, with an average relative humidity of 78%.
December has the shortest days of the year, with an average of 10h and 18min of daylight.
With an average of 5.1h of sunshine, December has the least sunshine of the year.
December is the month with the lowest UV index, with an average maximum UV index of 3.
Average temperature
Southport, LA
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).
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
Southport, LA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.12"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
Southport, LA
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.5mph - Average wind speed in March:
9.3mph - Average wind speed in April:
9.5mph - Average wind speed in May:
8mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.5mph - Average wind speed in September:
6.9mph - Average wind speed in October:
8.3mph - Average wind speed in November:
8.9mph - Average wind speed in December:
9.3mph
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
Southport, LA
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Southport, LA
- Average rainfall in January:
0.43" - Average rainfall in February:
0.51" - Average rainfall in March:
0.39" - Average rainfall in April:
0.47" - Average rainfall in May:
0.75" - Average rainfall in June:
0.87"
- Average rainfall in July:
1.3" - Average rainfall in August:
1.14" - Average rainfall in September:
0.43" - Average rainfall in October:
0.87" - Average rainfall in November:
0.51" - Average rainfall in December:
0.71"
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
Southport, LA
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
7.2 days - Average rainfall days in March:
8.1 days - Average rainfall days in April:
6.8 days - Average rainfall days in May:
8.6 days - Average rainfall days in June:
11.5 days
- Average rainfall days in July:
13.3 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
10.9 days - Average rainfall days in October:
5.9 days - Average rainfall days in November:
4.5 days - Average rainfall days in December:
7.2 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 / Average sunshine
Southport, LA
- Average daylight in January:
10h and 30min - Average daylight in February:
11h and 6min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 54min - Average daylight in May:
13h and 42min - Average daylight in June:
14h and 0min
- Average daylight in July:
13h and 54min - Average daylight in August:
13h and 12min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 42min - Average daylight in December:
10h and 18min
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 January:
5h and 36min - Average sunshine in February:
5h and 18min - Average sunshine in March:
7h and 54min - Average sunshine in April:
9h and 42min - Average sunshine in May:
10h and 30min - Average sunshine in June:
11h and 0min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 48min - Average sunshine in September:
10h and 12min - Average sunshine in October:
7h and 12min - Average sunshine in November:
6h and 6min - Average sunshine in December:
5h and 6min
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
Southport, LA
- Average sunshine days in January:
23.9 days - Average sunshine days in February:
19.1 days - Average sunshine days in March:
21.7 days - Average sunshine days in April:
22.1 days - Average sunshine days in May:
19.7 days - Average sunshine days in June:
14.9 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
10.3 days - Average sunshine days in September:
14.8 days - Average sunshine days in October:
23.4 days - Average sunshine days in November:
24.6 days - Average sunshine days in December:
21.8 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
Southport, LA
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
Southport, LA
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
Southport, LA
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).
