Climate and monthly weather forecastBelle Chasse, LA
Climate and monthly weather forecast
Weather in January
January, like December, is a moderate winter month in Belle Chasse, Louisiana, with an average temperature fluctuating between 60.4°F (15.8°C) and 48.6°F (9.2°C). January stands out as Belle Chasse's coldest month, with an average high-temperature of 60.4°F (15.8°C) and a low-temperature of 48.6°F (9.2°C). Weather in January »Weather in February
The last month of the winter, February, is an enjoyable month in Belle Chasse, Louisiana, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 64.6°F (18.1°C). The commencement of February brings an average high-temperature of a still refreshing 64.6°F (18.1°C), marking an inconsequential divergence from January. Weather in February »Weather in March
March, the first month of the spring in Belle Chasse, is a pleasant month, with an average temperature ranging between min 58.3°F (14.6°C) and max 70.7°F (21.5°C). A subtle rise in the average high-temperature is observed during March, adjusting from an enjoyable 64.6°F (18.1°C) in February to a pleasant 70.7°F (21.5°C). Weather in March »Weather in April
April in Belle Chasse, Louisiana, is a warm spring month, with an average temperature ranging between max 77°F (25°C) and min 64.2°F (17.9°C). April's arrival sees a mild rise in the average high-temperature, transitioning from March's pleasant 70.7°F (21.5°C) to a moderately hot 77°F (25°C). Weather in April »Weather in May
The last month of the spring, May, is also a moderately hot month in Belle Chasse, Louisiana, with an average temperature fluctuating between 82.9°F (28.3°C) and 71.2°F (21.8°C). May's arrival sees a mild rise in the average high-temperature, transitioning from April's 77°F (25°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 hot month in Belle Chasse, Louisiana, with an average temperature varying between 88.3°F (31.3°C) and 77.7°F (25.4°C). In June, the meteorological conditions subtly change with the average high-temperature edging from a moderately hot 82.9°F (28.3°C) in May to a tropical 88.3°F (31.3°C). Weather in June »Weather in July
July, like June, is another hot summer month in Belle Chasse, Louisiana, with temperature in the range of an average low of 79.3°F (26.3°C) and an average high of 89.4°F (31.9°C). Peak temperatures are observed in July and August, averaging a high-temperature of 89.4°F (31.9°C). The heat index in July is computed to be a blisteringly hot 105.8°F (41°C). Weather in July »Weather in August
August, the last month of the summer in Belle Chasse, is also a hot month, with temperature in the range of an average low of 79.5°F (26.4°C) and an average high of 89.4°F (31.9°C). July and August, with an average high-temperature of 89.4°F (31.9°C), are the warmest months. For August, the heat index is computed to be a blistering 105.8°F (41°C). Weather in August »Weather in September
The first month of the autumn, September, is still a tropical month in Belle Chasse, Louisiana, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 76.3°F (24.6°C). September's beginning signals an average high-temperature of a still hot 86.5°F (30.3°C), barely different from August's 89.4°F (31.9°C). Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in Belle Chasse, Louisiana, with an average temperature fluctuating between 66.9°F (19.4°C) and 78.8°F (26°C). October implies a soft temperature shift, with average high-temperatures reducing from September's tropical 86.5°F (30.3°C) to a moderately hot 78.8°F (26°C). Weather in October »Weather in November
The last month of the autumn, November, is also an agreeable month in Belle Chasse, Louisiana, with temperature in the range of an average high of 68.9°F (20.5°C) and an average low of 57.4°F (14.1°C). The arrival of November signals a shift in temperature, down from a warm 78.8°F (26°C) in October to an agreeable 68.9°F (20.5°C). Weather in November »Weather in December
The first month of the winter, December, is also an enjoyable month in Belle Chasse, Louisiana, with an average temperature varying between 63.5°F (17.5°C) and 52.5°F (11.4°C). With the onset of December, the average high-temperature subtly recedes from November's agreeable 68.9°F (20.5°C) to an enjoyable 63.5°F (17.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Belle Chasse, LA
The warmest months (with the highest average high temperature) are July and August (89.4°F).
The month with the lowest average high temperature is January (60.4°F).
The month with the highest average low temperature is August (79.5°F).
The coldest month (with the lowest average low temperature) is January (48.6°F).
Average pressure
Belle Chasse, 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
Belle Chasse, LA
- Average wind speed in January:
9.6mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.2mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.7mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.4mph - Average wind speed in November:
9mph - Average wind speed in December:
9.4mph
The windiest months (with the highest average wind speed) are February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity
Belle Chasse, LA
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Belle Chasse, LA
- Average rainfall in January:
0.47" - Average rainfall in February:
0.55" - Average rainfall in March:
0.43" - Average rainfall in April:
0.43" - Average rainfall in May:
0.75" - Average rainfall in June:
0.87"
- Average rainfall in July:
1.57" - Average rainfall in August:
1.46" - Average rainfall in September:
0.47" - Average rainfall in October:
0.94" - Average rainfall in November:
0.63" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is July (1.57").
The driest months (with the least rainfall) are March and April (0.43").
Average rainfall days
Belle Chasse, LA
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
7.1 days - Average rainfall days in March:
8.3 days - Average rainfall days in April:
6.7 days - Average rainfall days in May:
8.6 days - Average rainfall days in June:
11.9 days
- Average rainfall days in July:
15.5 days - Average rainfall days in August:
17.2 days - Average rainfall days in September:
11.7 days - Average rainfall days in October:
6.8 days - Average rainfall days in November:
4.7 days - Average rainfall days in December:
7.8 days
The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is November (4.7 days).
Average snowfall days
Belle Chasse, LA
- Average snowfall days in January:
0.1 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 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 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight / Average sunshine
Belle Chasse, LA
- Average daylight in January:
10h and 30min - Average daylight in February:
11h and 12min - 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 48min - 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 42min - Average sunshine in February:
5h and 24min - Average sunshine in March:
7h and 54min - Average sunshine in April:
9h and 54min - Average sunshine in May:
10h and 36min - Average sunshine in June:
11h and 0min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 36min - Average sunshine in September:
10h and 6min - Average sunshine in October:
7h and 18min - 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
Belle Chasse, LA
- Average sunshine days in January:
23.1 days - Average sunshine days in February:
18.9 days - Average sunshine days in March:
21.4 days - Average sunshine days in April:
21.8 days - Average sunshine days in May:
19.3 days - Average sunshine days in June:
13.8 days
- Average sunshine days in July:
10.1 days - Average sunshine days in August:
8.9 days - Average sunshine days in September:
12.5 days - Average sunshine days in October:
22.3 days - Average sunshine days in November:
23.5 days - Average sunshine days in December:
21.6 days
The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is August (8.9 days).
Average UV index
Belle Chasse, 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
Belle Chasse, LA
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility
Belle Chasse, 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).





