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
Grand Coteau's entry into September measures an average high-temperature of a still hot 86.9°F (30.5°C), closely parallel to the preceding month. Grand Coteau temperatures generally rest at a low of 69.6°F (20.9°C) during the September nights.Heat index
Throughout September, the heat index is evaluated at a fiery hot 102.2°F (39°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In September, the average relative humidity in Grand Coteau is 80%.Rainfall
In Grand Coteau, in September, during 14.5 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Grand Coteau, during the entire year, the rain falls for 135 days and collects up to 12.44" (316mm) of precipitation.Snowfall
February through November are months without snowfall in Grand Coteau, Louisiana.Daylight
In Grand Coteau, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:30 pm. On the last day of September, in Grand Coteau, Louisiana, sunrise is at 7:01 am and sunset at 6:54 pm CDT.
Sunshine
The average sunshine in September in Grand Coteau is 9.6h.UV index
The average daily maximum UV index in September in Grand Coteau 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 ordinary individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
How hot does it get in Grand Coteau in September?
What is the average humidity in September in Grand Coteau?
How many days does it rain in September in Grand Coteau?
When it does not snow in Grand Coteau?
How many hours of daylight does Grand Coteau have in September?
When are sunrise and sunset in September in Grand Coteau?
How long on average sun shines in September in Grand Coteau?
What is the UV index reading in September in Grand Coteau?
Average temperature in September
Grand Coteau, LA
- Average high temperature in September: 86.9°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 (58.3°F).
- Average low temperature in September: 69.6°F
The month with the highest average low temperature is August (73.8°F).
The coldest month (with the lowest average low temperature) is January (43°F).
Average pressure in September
Grand Coteau, LA
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Grand Coteau, LA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is July (5mph).
Average humidity in September
Grand Coteau, LA
- Average humidity in September: 80%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Grand Coteau, LA
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is March (0.59").
Average rainfall days in September
Grand Coteau, LA
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is November (7.1 days).
Average snowfall in September
Grand Coteau, LA
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Grand Coteau, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Grand Coteau, 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: 4h and 54min).
Average sunshine days in September
Grand Coteau, LA
- Average sunshine days in September: 12 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is August (8.3 days).
Average UV index in September
Grand Coteau, LA
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Grand Coteau, LA
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Grand Coteau, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, June, October, November and December (6mi).
The months with the lowest visibility are March, April, May, July, August and September (5mi).
Grand Coteau, Louisiana, USA
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