September weather forecast
Brimstone, LA

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Weather in September

September, the first month of the autumn in Brimstone, is still a hot month, with an average temperature varying between 71.2°F (21.8°C) and 87.6°F (30.9°C).

Temperature

The introduction of September sees an average high-temperature of a still tropical 87.6°F (30.9°C), hardly deviating from August. Brimstone records an average low of 71.2°F (21.8°C) throughout the nights in September.

Heat index

In September, the heat index is appraised at an extremely hot 104°F (40°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In Brimstone, the average relative humidity in September is 77%.

Rainfall

In Brimstone, during September, the rain falls for 15.7 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 160.8 rainfall days, and 28.54" (725mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 6:50 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:59 pm CDT.

Sunshine

The average sunshine in September is 9.7h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

How hot is September in Brimstone?

The high-temperature in Brimstone during September is 87.6°F (30.9°C) and the low-temperature is 71.2°F (21.8°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in September is appraised at 104°F (40°C).

What is the average humidity in September?

In Brimstone, the average relative humidity in September is 77%.

How much does it rain in September?

In September, the rain falls for 15.7 days. Throughout September, 2.2" (56mm) of precipitation is accumulated.

When it does not snow?

In Brimstone, snow does not fall in February through December.

How many hours of daylight does Brimstone have in September?

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

When are sunrise and sunset in September in Brimstone?

In September, on the first day of the month, sunrise is at 6:50 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:59 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.7h.

How high is the UV index in September?

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
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
Brimstone, LA

Average temperature in September - Brimstone, LA
  • Average high temperature in September: 87.6°F

The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (59.2°F).

  • Average low temperature in September: 71.2°F

The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

Average pressure in September
Brimstone, LA

Average pressure in September - Brimstone, LA
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Brimstone, LA

Average wind speed in September - Brimstone, LA
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

Average humidity in September
Brimstone, LA

Average humidity in September - Brimstone, LA
  • Average humidity in September: 77%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Brimstone, LA

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

The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is February (1.54").

Average rainfall days in September
Brimstone, LA

Average rainfall days in September - Brimstone, LA
  • Average rainfall days in September: 15.7 days

The month with the highest number of rainy days is August (17.7 days).
The month with the least rainy days is November (9.9 days).

Average snowfall in September
Brimstone, LA

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

The month with the highest snowfall is January (0.12").
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
Brimstone, LA

Average snowfall days in September - Brimstone, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Brimstone, 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 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Brimstone, LA

Average sunshine days in September - Brimstone, LA
  • Average sunshine days in September: 12.7 days

The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is August (10.6 days).

Average UV index in September
Brimstone, LA

Average UV index in September - Brimstone, LA
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in September
Brimstone, LA

Average cloud cover in September - Brimstone, LA
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 26).

Average visibility in September
Brimstone, LA

Average visibility in September - Brimstone, 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).

Brimstone, Louisiana, USA

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