September weather forecast
Somerset, LA

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Weather in September

The first month of the autumn, September, is still a hot month in Somerset, Louisiana, with an average temperature varying between 68°F (20°C) and 87.8°F (31°C).

Temperature

Somerset ushers in September with an average high-temperature of a still hot 87.8°F (31°C), showing a close resemblance to the previous month. An average minimum temperature of 68°F (20°C) is recorded during the month of September.

Heat index

The average heat index in September is estimated at a very hot 102.2°F (39°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. 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 are particularly relevant to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. 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. 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 Somerset, the average relative humidity in September is 74%.

Rainfall

In Somerset, during September, the rain falls for 12.7 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Somerset, during the entire year, the rain falls for 154.1 days and collects up to 35.12" (892mm) of precipitation.

Snowfall

In Somerset, snow does not fall in April through December.

Daylight

The average length of the day in September in Somerset, Louisiana, is 12h and 21min.
On the first day of September, sunrise is at 6:40 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:50 pm CDT.

Sunshine

In Somerset, the average sunshine in September is 9.7h.

UV index

The average daily maximum UV index in September in Somerset is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

How hot does it get in Somerset in September?

In September, the average high-temperature and low-temperature in Somerset are 87.8°F (31°C) and 68°F (20°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 102.2°F (39°C).

What is the average humidity in September in Somerset?

In Somerset, the average relative humidity in September is 74%.

How many days does it rain in September in Somerset?

In Somerset, Louisiana, in September, during 12.7 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

When it does not snow in Somerset?

April through December are months without snowfall in Somerset.

What is the average length of the day in September in Somerset?

In Somerset, Louisiana, the average day length in September is 12h and 21min.

When are sunrise and sunset in September in Somerset?

On the first day of September, sunrise is at 6:40 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:50 pm CDT.

How long on average sun shines in September in Somerset?

The average sunshine duration in September is 9.7h.

What is the UV index intensity in September in Somerset?

In September, the average daily maximum UV index in Somerset, Louisiana, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Somerset, LA

Average temperature in September - Somerset, LA
  • Average high temperature in September: 87.8°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (55°F).

  • Average low temperature in September: 68°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).

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Average pressure in September
Somerset, LA

Average pressure in September - Somerset, 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 (29.96"Hg).

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Average wind speed in September
Somerset, LA

Average wind speed in September - Somerset, LA
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and September (5.3mph).

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Average humidity in September
Somerset, LA

Average humidity in September - Somerset, LA
  • Average humidity in September: 74%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Somerset, LA

Average rainfall in September - Somerset, LA
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is November (2.13").

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Average rainfall days in September
Somerset, LA

Average rainfall days in September - Somerset, LA
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is August (15.5 days).
The month with the least rainy days is October (8.5 days).

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Average snowfall in September
Somerset, LA

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

The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Somerset, LA

Average snowfall days in September - Somerset, 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, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Somerset, LA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
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 June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in September
Somerset, LA

Average sunshine days in September - Somerset, LA
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is February (13.3 days).

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Average UV index in September
Somerset, LA

Average UV index in September - Somerset, 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).

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Average cloud cover in September
Somerset, LA

Average cloud cover in September - Somerset, LA
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and October (Cloud cover 28).

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Average visibility in September
Somerset, LA

Average visibility in September - Somerset, 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).

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Somerset, Louisiana, USA

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