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 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 beginning of September records an average high-temperature of a still tropical 86.7°F (30.4°C), almost echoing the conditions of the previous month. In the month of September, the average low-temperature usually rests at an agreeable 72.1°F (22.3°C).Heat index
For September, the heat index is estimated at a sweltering 102.2°F (39°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
The months with the highest humidity are July through September and December, with an average relative humidity of 79%.Rainfall
In Chacahoula, in September, it is raining for 19.1 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 166.9 rainfall days, and 25.39" (645mm) of precipitation is accumulated.Snowfall
February through November are months without snowfall in Chacahoula.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September, sunrise is at 6:41 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:49 pm CDT.
Sunshine
In Chacahoula, the average sunshine in September is 10.3h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 7 during September, leads to the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What are the most humid months?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September in Chacahoula?
When are sunrise and sunset in September?
How many hours of sunshine does Chacahoula have in September?
When is the highest UV index?
How high is the UV index in September?
Average temperature in September
Chacahoula, LA
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (60.8°F).
- Average low temperature in September: 72.1°F
The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (46.2°F).
Average pressure in September
Chacahoula, LA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Chacahoula, LA
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are February and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Chacahoula, LA
- Average humidity in September: 79%
The months with the highest relative humidity are July, August, September and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Chacahoula, LA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is July (4.61").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in September
Chacahoula, LA
- Average rainfall days in September: 19.1 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (7.2 days).
Average snowfall days in September
Chacahoula, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 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
Chacahoula, LA
- Average daylight in September: 12h and 2min
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 September: 10h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Chacahoula, LA
- Average sunshine days in September: 8.2 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is August (5.8 days).
Average UV index in September
Chacahoula, LA
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, November and December (UV index 4).
Average cloud cover in September
Chacahoula, LA
- Average cloud cover in September: 26
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 in September
Chacahoula, LA
- Average visibility in September: 6mi
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).
Chacahoula, Louisiana, USA
Weather forecast for your location
2. Allow the app to use your location