Climate and monthly weather forecastMer Rouge, LA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another fresh winter month in Mer Rouge, Louisiana, with an average temperature ranging between max 53.4°F (11.9°C) and min 38.8°F (3.8°C). January, noted for its average high-temperature of 53.4°F (11.9°C) and an average low-temperature of 38.8°F (3.8°C), is considered the coldest month. Weather in January »Weather in February
The last month of the winter, February, is a mild month in Mer Rouge, Louisiana, with an average temperature ranging between max 56.8°F (13.8°C) and min 42.3°F (5.7°C). A minimal variation is noted in Mer Rouge's average high-temperature at the onset of February, reaching a mild 56.8°F (13.8°C) from January's 53.4°F (11.9°C). Weather in February »Weather in March
March, the first month of the spring in Mer Rouge, is an enjoyable month, with an average temperature varying between 66.2°F (19°C) and 48.9°F (9.4°C). The start of March brings a rise in the average high-temperature, moving from a mild 56.8°F (13.8°C) in February to a still refreshing 66.2°F (19°C). Weather in March »Weather in April
April is a warm spring month in Mer Rouge, Louisiana, with an average temperature ranging between max 74.7°F (23.7°C) and min 55.9°F (13.3°C). The beginning of April marks a minor shift in the average high-temperature, moving from March's comfortable 66.2°F (19°C) to a warm 74.7°F (23.7°C). Weather in April »Weather in May
May, the last month of the spring in Mer Rouge, is also a moderately hot month, with an average temperature ranging between max 82.9°F (28.3°C) and min 64.8°F (18.2°C). As May arrives, Mer Rouge's weather shows a minor increase in high-temperatures, edging from April's 74.7°F (23.7°C) to a still warm 82.9°F (28.3°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Mer Rouge, Louisiana, with an average temperature varying between 90°F (32.2°C) and 71.8°F (22.1°C). The shift from May to June sees a slight increase in the average high-temperature, transitioning from a moderately hot 82.9°F (28.3°C) to a tropical 90°F (32.2°C). Weather in June »Weather in July
July, the same as June, in Mer Rouge, Louisiana, is a hot summer month, with an average temperature fluctuating between 73.6°F (23.1°C) and 92.7°F (33.7°C). Temperature readings reach their annual highs in July, averaging 92.7°F (33.7°C) and a minimum average of 73.6°F (23.1°C). Throughout July, the heat index is evaluated at a life-threatening hot 116.6°F (47°C). Weather in July »Weather in August
The last month of the summer, August, is another tropical month in Mer Rouge, Louisiana, with an average temperature fluctuating between 73°F (22.8°C) and 92.1°F (33.4°C). The transition into August reveals an average high-temperature of a still hot 92.1°F (33.4°C), mirroring a close resemblance to July. Weather in August »Weather in September
September, the first month of the autumn in Mer Rouge, is still a tropical month, with an average temperature varying between 67.5°F (19.7°C) and 87.1°F (30.6°C). The advent of September sees the average high-temperature at a still tropical 87.1°F (30.6°C), subtly shifted from August's 92.1°F (33.4°C). Weather in September »Weather in October
October, the same as September, is another warm autumn month in Mer Rouge, Louisiana, with an average temperature ranging between min 56.8°F (13.8°C) and max 76.5°F (24.7°C). Onset of October comes with a temperature decline, the average high falling from a hot 87.1°F (30.6°C) in September to a moderately hot 76.5°F (24.7°C). Weather in October »Weather in November
November, the last month of the autumn in Mer Rouge, is another refreshing month, with an average temperature fluctuating between 47.1°F (8.4°C) and 63.9°F (17.7°C). November implies a gentle temperature shift, with average high-temperatures reducing from October's warm 76.5°F (24.7°C) to a refreshing 63.9°F (17.7°C). Weather in November »Weather in December
December, the first month of the winter in Mer Rouge, is still a mild month, with temperature in the range of an average high of 56.1°F (13.4°C) and an average low of 42.1°F (5.6°C). December ushers in a minute temperature change, with average high-temperatures reducing from November's 63.9°F (17.7°C) to a still refreshing 56.1°F (13.4°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Mer Rouge, LA
The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (53.4°F).
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure
Mer Rouge, LA
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Mer Rouge, LA
- Average wind speed in January:
7.5mph - Average wind speed in February:
7.8mph - Average wind speed in March:
7.9mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.7mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.8mph - Average wind speed in December:
7mph
The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest months (with the lowest average wind speed) are August and September (5.3mph).
Average humidity
Mer Rouge, LA
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Mer Rouge, LA
- Average rainfall in January:
3.15" - Average rainfall in February:
3.74" - Average rainfall in March:
3.54" - Average rainfall in April:
4.45" - Average rainfall in May:
2.8" - Average rainfall in June:
2.83"
- Average rainfall in July:
2.83" - Average rainfall in August:
2.4" - Average rainfall in September:
1.54" - Average rainfall in October:
3.31" - Average rainfall in November:
2.24" - Average rainfall in December:
3.31"
The wettest month (with the highest rainfall) is April (4.45").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days
Mer Rouge, LA
- Average rainfall days in January:
11.3 days - Average rainfall days in February:
12.1 days - Average rainfall days in March:
15 days - Average rainfall days in April:
14.1 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
13.5 days
- Average rainfall days in July:
15.7 days - Average rainfall days in August:
14.4 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
9.6 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
12.5 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is November (8.8 days).
Average snowfall
Mer Rouge, LA
The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days
Mer Rouge, LA
- Average snowfall days in January:
0.5 days - Average snowfall days in February:
0.7 days - Average snowfall days in March:
0.1 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.1 days
The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Mer Rouge, LA
- Average daylight in January:
10h and 18min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 30min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 48min - Average sunshine in April:
9h and 12min - Average sunshine in May:
9h and 42min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 30min - Average sunshine in September:
10h and 0min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Mer Rouge, LA
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
13.1 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
14.2 days - Average sunshine days in June:
13.9 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
16 days - Average sunshine days in October:
20.2 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
16.3 days
The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is February (13.1 days).
Average UV index
Mer Rouge, LA
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover
Mer Rouge, LA
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility
Mer Rouge, 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).





