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
During September, Cassandra records an average high-temperature of a still tropical 87.4°F (30.8°C), marking a slight divergence from August's 91.2°F (32.9°C). During the nights in September, Cassandra experiences a consistent average temperature of 68.5°F (20.3°C).Heat index
For September, the heat index is appraised at a sweltering 102.2°F (39°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
In September, the average relative humidity is 77%.Rainfall
In September, the rain falls for 13 days. Throughout September, 1.02" (26mm) of precipitation is accumulated. In Cassandra, during the entire year, the rain falls for 133.5 days and collects up to 15.51" (394mm) of precipitation.Snowfall
February through December are months without snowfall in Cassandra.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September, sunrise is at 6:45 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:54 pm CDT.
Sunshine
The average sunshine in September in Cassandra, Louisiana, is 9.4h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 6 translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
How hot is it in Cassandra in September?
What is the average humidity in September in Cassandra?
How many days does it rain in September in Cassandra?
When it does not snow in Cassandra?
What is the average length of the day in September in Cassandra?
When are sunrise and sunset in September in Cassandra?
How long on average sun shines in September in Cassandra?
What is the UV index reading in September in Cassandra?
Average temperature in September
Cassandra, LA
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in September: 68.5°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in September
Cassandra, LA
- Average pressure in September: 29.97"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 in September
Cassandra, LA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).
Average humidity in September
Cassandra, LA
- Average humidity in September: 77%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Cassandra, LA
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is August (1.73").
The driest month (with the least rainfall) is November (0.94").
Average rainfall days in September
Cassandra, LA
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is August (16.1 days).
The month with the least rainy days is November (7.1 days).
Average snowfall in September
Cassandra, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
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
Cassandra, 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 April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Cassandra, 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 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Cassandra, LA
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is August (11.2 days).
Average UV index in September
Cassandra, LA
- Average UV index in September: 6
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 in September
Cassandra, LA
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Cassandra, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
Cassandra, Louisiana, USA
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