September weather forecast
Arbroth, LA

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Weather in September

The first month of the autumn, September, is still a hot month in Arbroth, Louisiana, with temperature in the range of an average high of 87.8°F (31°C) and an average low of 69.1°F (20.6°C).

Temperature

In September, Arbroth's weather conditions record an average high-temperature of a still tropical 87.8°F (31°C), demonstrating little divergence from the preceding month. In Arbroth, September nights cool down to an average of 69.1°F (20.6°C).

Heat index

Throughout September, the heat index is calculated to be a blisteringly hot 105.8°F (41°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Arbroth, the average relative humidity in September is 79%.

Rainfall

In Arbroth, in September, during 13.6 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Arbroth, during the entire year, the rain falls for 134.7 days and collects up to 12.48" (317mm) of precipitation.

Snowfall

In Arbroth, snow does not fall in February through November.

Daylight

In Arbroth, the average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:42 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:51 pm CDT.

Sunshine

The average sunshine in September is 9.4h.

UV index

In Arbroth, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 in September transforms into the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.

Frequently asked questions

How hot is September?

September temperatures vary between a high-temperature of 87.8°F (31°C) and a low-temperature of 69.1°F (20.6°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is calculated to be 105.8°F (41°C).

What is the average humidity in September?

The average relative humidity in September is 79%.

How much does it rain in September?

In Arbroth, in September, during 13.6 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

When it does not snow?

In Arbroth, snow does not fall in February through November.

How many hours of daylight does Arbroth have in September?

In September, the average day length in Arbroth is 12h and 20min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:42 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:51 pm CDT.

How many hours of sunshine does Arbroth have in September?

The average sunshine duration in September in Arbroth, Louisiana, is 9.4h.

How high is the UV index in September?

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Arbroth, LA

Average temperature in September - Arbroth, LA
  • Average high temperature in September: 87.8°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 (57.6°F).

  • Average low temperature in September: 69.1°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).

Average pressure in September
Arbroth, LA

Average pressure in September - Arbroth, LA
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).

Average wind speed in September
Arbroth, LA

Average wind speed in September - Arbroth, LA
  • Average wind speed in September: 4.4mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.2mph).

Average humidity in September
Arbroth, LA

Average humidity in September - Arbroth, LA
  • Average humidity in September: 79%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Arbroth, LA

Average rainfall in September - Arbroth, LA
  • Average rainfall in September: 0.75"

The wettest month (with the highest rainfall) is July (1.81").
The driest month (with the least rainfall) is March (0.67").

Average rainfall days in September
Arbroth, LA

Average rainfall days in September - Arbroth, LA
  • Average rainfall days in September: 13.6 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is November (6.3 days).

Average snowfall in September
Arbroth, LA

Average snowfall in September - Arbroth, LA
  • Average snowfall in September: 0"

The months with the highest snowfall are January and 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
Arbroth, LA

Average snowfall days in September - Arbroth, LA
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).

Average daylight in September /
Average sunshine in September
Arbroth, LA

Average daylight in September / Average sunshine in September - Arbroth, 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 month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in September
Arbroth, LA

Average sunshine days in September - Arbroth, LA
  • Average sunshine days in September: 12.3 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is August (9.4 days).

Average UV index in September
Arbroth, LA

Average UV index in September - Arbroth, 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
Arbroth, LA

Average cloud cover in September - Arbroth, LA
  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in September
Arbroth, LA

Average visibility in September - Arbroth, LA
  • Average visibility in September: 5mi

The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).

Arbroth, Louisiana, USA

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