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
September begins with an average high-temperature of a still hot 87.8°F (31°C), reflecting close similarity to the preceding month. Swartz experiences a consistent average temperature of 67.8°F (19.9°C) throughout the nights in September.Heat index
During September, the heat index is calculated to be a very hot 100.4°F (38°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In Swartz, the average relative humidity in September is 71%.Rainfall
September is the month with the least rainfall in Swartz. Rain falls for 11.6 days and accumulates 1.5" (38mm) of precipitation.Snowfall
In Swartz, Louisiana, snow does not fall in April through November.Daylight
In September, the average length of the day in Swartz is 12h and 22min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:32 pm. On the last day of September, in Swartz, sunrise is at 7:01 am and sunset at 6:53 pm CDT.
Sunshine
The average sunshine in September in Swartz is 9.6h.UV index
In Swartz, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
Is it hot in Swartz during September?
What is the average humidity in September in Swartz?
What is the driest month in Swartz?
How many days does it rain in September in Swartz?
When it does not snow in Swartz?
How many hours of daylight does Swartz have in September?
When is the sunrise / sunset in September in Swartz?
How many hours of sunshine does Swartz have in September?
What is the UV index intensity in September in Swartz?
Average temperature in September
Swartz, LA
- Average high temperature in September: 87.8°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (53.8°F).
- Average low temperature in September: 67.8°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.4°F).
Average pressure in September
Swartz, LA
- Average pressure in September: 29.98"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
Swartz, LA
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest months (with the lowest average wind speed) are July, August and September (5.3mph).
Average humidity in September
Swartz, LA
- Average humidity in September: 71%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Swartz, LA
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is April (4.17").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in September
Swartz, LA
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is March (15.2 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Swartz, LA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Swartz, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 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
Swartz, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Swartz, LA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is February (13.2 days).
Average UV index in September
Swartz, 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
Swartz, LA
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and October (Cloud cover 28).
Average visibility in September
Swartz, 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).
Swartz, Louisiana, USA
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