September weather forecast
Grand Cane, LA

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Weather in September

September, the first month of the autumn in Grand Cane, is still a hot month, with an average temperature varying between 67.6°F (19.8°C) and 88.9°F (31.6°C).

Temperature

Transition into September subtly marks a drop in the average high-temperature, moderately moving from a sweltering 95°F (35°C) in August to a hot 88.9°F (31.6°C). In Grand Cane, the September nights cool down to an average low of 67.6°F (19.8°C).

Heat index

In September, the average heat index is calculated to be a blistering 104°F (40°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Data suggests that the heat index is set for environments in shade and with a light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', determines the feeling of heat when you account for the relative humidity. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In September, the average relative humidity is 71%.

Rainfall

In Grand Cane, in September, during 13.9 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In Grand Cane, during the entire year, the rain falls for 154.3 days and collects up to 37.09" (942mm) of precipitation.

Snowfall

January through March, September and December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, in Grand Cane, Louisiana, there are 2.2 snowfall days, and 0.63" (16mm) of snow is accumulated.

Daylight

In September, the average length of the day is 12h and 21min.
On the first day of the month, sunrise is at 6:51 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:09 am and sunset at 7:00 pm CDT.

Sunshine

The average sunshine in September is 9.3h.

UV index

In Grand Cane, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

How hot is September in Grand Cane?

During September, Grand Cane experiences an average high-temperature of 88.9°F (31.6°C) and a low-temperature of 67.6°F (19.8°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 104°F (40°C).

What is the average humidity in September in Grand Cane?

In Grand Cane, the average relative humidity in September is 71%.

How much does it rain in Grand Cane in September?

In September, in Grand Cane, the rain falls for 13.9 days. Throughout September, 2.48" (63mm) of precipitation is accumulated.

When does it start snowing in Grand Cane?

September is the first month it typically snows in Grand Cane, Louisiana. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in September in Grand Cane?

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

When are sunrise and sunset in September in Grand Cane?

In September, on the first day of the month, sunrise is at 6:51 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 7:00 pm CDT.

How long on average sun shines in September in Grand Cane?

In September, the average sunshine duration in Grand Cane is 9.3h.

How high is the UV index in September in Grand Cane?

In Grand Cane, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to 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
Grand Cane, LA

Average temperature in September - Grand Cane, LA
  • Average high temperature in September: 88.9°F

The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (55.2°F).

  • Average low temperature in September: 67.6°F

The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

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Average pressure in September
Grand Cane, LA

Average pressure in September - Grand Cane, LA
  • Average pressure in September: 29.97"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).

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Average wind speed in September
Grand Cane, LA

Average wind speed in September - Grand Cane, LA
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest months (with the lowest average wind speed) are July, August and September (5mph).

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Average humidity in September
Grand Cane, LA

Average humidity in September - Grand Cane, 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 (69%).

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Average rainfall in September
Grand Cane, LA

Average rainfall in September - Grand Cane, LA
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is July (2.2").

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Average rainfall days in September
Grand Cane, LA

Average rainfall days in September - Grand Cane, LA
  • Average rainfall days in September: 13.9 days

The month with the highest number of rainy days is March (15 days).
The month with the least rainy days is October (9.4 days).

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Average snowfall in September
Grand Cane, LA

Average snowfall in September - Grand Cane, LA
  • Average snowfall in September: 0.04"

The month with the highest snowfall is January (0.31").
The months with the least snowfall are April, May, June, July, August, October and November (0").

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Average snowfall days in September
Grand Cane, LA

Average snowfall days in September - Grand Cane, LA
  • Average snowfall days in September: 0.1 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 and October (0 days).

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Average daylight in September /
Average sunshine in September
Grand Cane, LA

Average daylight in September / Average sunshine in September - Grand Cane, 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 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 54min).

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Average sunshine days in September
Grand Cane, LA

Average sunshine days in September - Grand Cane, LA
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is February (12.8 days).

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Average UV index in September
Grand Cane, LA

Average UV index in September - Grand Cane, 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
Grand Cane, LA

Average cloud cover in September - Grand Cane, LA
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in September
Grand Cane, LA

Average visibility in September - Grand Cane, 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).

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Grand Cane, Louisiana, USA

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