September weather forecast
Lagan, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Lagan, Louisiana, with temperature in the range of an average high of 86.9°F (30.5°C) and an average low of 72°F (22.2°C).

Temperature

Lagan's average high-temperature in September is a still tropical 86.9°F (30.5°C), marking an insignificant difference from the 89.8°F (32.1°C) of August. Lagan's average low-temperature during September nights is observed to be a pleasant 72°F (22.2°C).

Heat index

In September, the average heat index is estimated at a very hot 102.2°F (39°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Heat index determinations are made taking into account the shade and light air movements. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The months with the highest humidity in Lagan are February, July through September and December, with an average relative humidity of 79%.

Rainfall

In Lagan, in September, during 18.6 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, there are 172.6 rainfall days, and 30.2" (767mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

In Lagan, the average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:40 am and sunset at 7:25 pm. On the last day of September, in Lagan, sunrise is at 6:56 am and sunset at 6:49 pm CDT.

Sunshine

In Lagan, the average sunshine in September is 10.1h.

UV index

In Lagan, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

How hot is September in Lagan?

In September, in Lagan, the average high-temperature is 86.9°F (30.5°C), and the average low-temperature is 72°F (22.2°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 102.2°F (39°C).

What is the most humid month in Lagan?

The months with the highest humidity are February, July through September and December, with an average relative humidity of 79%.

What is the average humidity in September in Lagan?

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

How many days does it rain in September in Lagan?

In Lagan, in September, during 18.6 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

When it does not snow in Lagan?

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

How many hours of daylight does Lagan have in September?

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

When are sunrise and sunset in September in Lagan?

On the first day of September, sunrise is at 6:40 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:49 pm CDT.

How long on average sun shines in September in Lagan?

In Lagan, Louisiana, the average sunshine duration in September is 10.1h.

How high is the UV index in September in Lagan?

The average daily maximum UV index in September in Lagan, Louisiana, is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Lagan, LA

Average temperature in September - Lagan, LA
  • Average high temperature in September: 86.9°F

The warmest months (with the highest average high temperature) are July and August (89.8°F).
The month with the lowest average high temperature is January (60.3°F).

  • Average low temperature in September: 72°F

The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).

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Average pressure in September
Lagan, LA

Average pressure in September - Lagan, 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, August and September (29.97"Hg).

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Average wind speed in September
Lagan, LA

Average wind speed in September - Lagan, LA
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

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Average humidity in September
Lagan, LA

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

The months with the highest relative humidity are February, July, August, September and December (79%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Lagan, LA

Average rainfall in September - Lagan, LA
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is July (4.88").
The driest month (with the least rainfall) is November (1.26").

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Average rainfall days in September
Lagan, LA

Average rainfall days in September - Lagan, LA
  • Average rainfall days in September: 18.6 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8 days).

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Average snowfall in September
Lagan, LA

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

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Lagan, LA

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

The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 10h and 1min

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 6min).

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Average sunshine days in September
Lagan, LA

Average sunshine days in September - Lagan, LA
  • Average sunshine days in September: 8.8 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (6.4 days).

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Average UV index in September
Lagan, LA

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

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

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Average cloud cover in September
Lagan, LA

Average cloud cover in September - Lagan, LA
  • Average cloud cover in September: 27

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 25).

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Average visibility in September
Lagan, LA

Average visibility in September - Lagan, 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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Lagan, Louisiana, USA

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