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 onset of September entails a subtle temperature shift, as the average high-temperature eases from a hot 94.1°F (34.5°C) in August to a still tropical 88.3°F (31.3°C). September sees the temperature falling to a mean low of 66.9°F (19.4°C).Heat index
The heat index in September is computed to be a sweltering 102.2°F (39°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
The average relative humidity in September is 71%.Rainfall
In Arcadia, in September, it is raining for 12.8 days, with typically 0.94" (24mm) of accumulated precipitation. In Arcadia, during the entire year, the rain falls for 129.7 days and collects up to 17.24" (438mm) of precipitation.Snowfall
In Arcadia, snow does not fall in March through November.Daylight
In Arcadia, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:57 pm CDT.
Sunshine
In Arcadia, the average sunshine in September is 9.4h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 6 in September translates into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Arcadia have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Arcadia have in September?
How high is the UV index in September?
Average temperature in September
Arcadia, LA
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is August (94.1°F).
The month with the lowest average high temperature is January (53.6°F).
- Average low temperature in September: 66.9°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in September
Arcadia, 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 (29.94"Hg).
Average wind speed in September
Arcadia, LA
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Arcadia, LA
- Average humidity in September: 71%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Arcadia, LA
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is November (0.87").
Average rainfall days in September
Arcadia, LA
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in September
Arcadia, LA
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Arcadia, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Arcadia, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Arcadia, LA
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in September
Arcadia, 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, February and December (UV index 3).
Average cloud cover in September
Arcadia, LA
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are August and October (Cloud cover 30).
Average visibility in September
Arcadia, LA
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May and December (5mi).
Arcadia, Louisiana, USA
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