September weather forecast
Chackbay, LA

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Weather in September

September, the first month of the autumn in Chackbay, is still a tropical month, with an average temperature fluctuating between 72.1°F (22.3°C) and 86.7°F (30.4°C).

Temperature

Chackbay signifies an average high-temperature of a still tropical 86.7°F (30.4°C) in September, closely mirroring the 89.2°F (31.8°C) of August. Throughout the month of September, Chackbay sees a steady low-temperature average of 72.1°F (22.3°C).

Heat index

The heat index for September is evaluated at a very hot 102.2°F (39°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

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

Rainfall

In Chackbay, in September, during 19.1 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, in Chackbay, there are 166.9 rainfall days, and 25.39" (645mm) of precipitation is accumulated.

Snowfall

February through November are months without snowfall.

Daylight

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 Chackbay, sunrise is at 6:56 am and sunset at 6:49 pm CDT.

Sunshine

In Chackbay, the average sunshine in September is 10.3h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

How hot is it in September?

The high-temperature during September is 86.7°F (30.4°C) and the low-temperature is 72.1°F (22.3°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 102.2°F (39°C).

What is the most humid month in Chackbay?

July through September and December, with an average relative humidity of 79%, are most humid months.

What is the average humidity in September?

The average relative humidity in September is 79%.

How many days does it rain in September?

In Chackbay, Louisiana, in September, it is raining for 19.1 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow in Chackbay?

February through November are months without snowfall.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, 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?

The average sunshine duration in September is 10.3h.

What is the month with the highest UV index?

May through September, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index reading in September?

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

Average temperature in September
Chackbay, LA

Average temperature in September - Chackbay, LA
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (60.8°F).

  • Average low temperature in September: 72.1°F

The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (46.2°F).

Average pressure in September
Chackbay, LA

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

Average wind speed in September
Chackbay, LA

Average wind speed in September - Chackbay, LA
  • Average wind speed in September: 5.5mph

The windiest months (with the highest average wind speed) are February and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September
Chackbay, LA

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

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

Average rainfall in September
Chackbay, LA

Average rainfall in September - Chackbay, LA
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is July (4.61").
The driest month (with the least rainfall) is November (1.14").

Average rainfall days in September
Chackbay, LA

Average rainfall days in September - Chackbay, LA
  • Average rainfall days in September: 19.1 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (7.2 days).

Average snowfall days in September
Chackbay, LA

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

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

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

Average daylight in September / Average sunshine in September - Chackbay, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in September
Chackbay, LA

Average sunshine days in September - Chackbay, LA
  • Average sunshine days in September: 8.2 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is August (5.8 days).

Average UV index in September
Chackbay, LA

Average UV index in September - Chackbay, LA
  • Average UV index in September: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, November and December (UV index 4).

Average cloud cover in September
Chackbay, LA

Average cloud cover in September - Chackbay, LA
  • Average cloud cover in September: 26

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).

Average visibility in September
Chackbay, LA

Average visibility in September - Chackbay, 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).

Chackbay, Louisiana, USA

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