Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The start of September sees the average high-temperature at a still tropical 87.3°F (30.7°C), showing little difference from August's 90.1°F (32.3°C). Marchand in September anticipates an average nighttime temperature of 70.5°F (21.4°C).Heat index
During September, the heat index is calculated to be a blistering 104°F (40°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
The months with the highest humidity in Marchand, Louisiana, are February, September and December, with an average relative humidity of 80%.Rainfall
In Marchand, during September, the rain falls for 17.9 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, in Marchand, there are 165.4 rainfall days, and 26.93" (684mm) of precipitation is accumulated.Snowfall
In Marchand, snow does not fall in February through December.Daylight
The average length of the day in September is 12h and 20min.On the first day of September in Marchand, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:50 pm CDT.
Sunshine
The average sunshine in September is 9.7h.UV index
In Marchand, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 6 translates into these guidelines:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
How hot is it in Marchand in September?
What are the most humid months in Marchand?
What is the average humidity in September in Marchand?
How much does it rain in Marchand in September?
When it does not snow in Marchand?
What is the average length of the day in September in Marchand?
When is the sunrise / sunset in September in Marchand?
How long on average sun shines in September in Marchand?
What is the UV index reading in September in Marchand?
Average temperature in September
Marchand, LA
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (60.1°F).
- Average low temperature in September: 70.5°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in September
Marchand, LA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).
Average wind speed in September
Marchand, LA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Marchand, LA
- Average humidity in September: 80%
The months with the highest relative humidity are February, September and December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Marchand, LA
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is July (4.25").
The driest month (with the least rainfall) is November (1.18").
Average rainfall days in September
Marchand, LA
- Average rainfall days in September: 17.9 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (8.1 days).
Average snowfall in September
Marchand, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Marchand, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Marchand, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Marchand, LA
- Average sunshine days in September: 9.9 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Marchand, LA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Marchand, LA
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Marchand, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, June, August, October, November and December (6mi).
The months with the lowest visibility are March, April, May, July and September (5mi).
Marchand, Louisiana, USA
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