September weather forecast
Otis, LA

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Weather in September

September, the first month of the autumn in Otis, is still a hot month, with an average temperature fluctuating between 68°F (20°C) and 88°F (31.1°C).

Temperature

During September, the average high-temperature is a still tropical 88°F (31.1°C), maintaining a close resemblance to that of the preceding month. Otis observes an average nighttime temperature of 68°F (20°C) during September.

Heat index

The heat index value during September is computed to be a scorching 104°F (40°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Know that the heat index computations account for shaded terrains and slight winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Otis, the average relative humidity in September is 76%.

Rainfall

In Otis, Louisiana, in September, during 14.8 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. In Otis, Louisiana, during the entire year, the rain falls for 164.9 days and collects up to 35.43" (900mm) of precipitation.

Snowfall

March through November are months without snowfall in Otis, Louisiana.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 6:47 am and sunset at 7:33 pm. On the last day of September, in Otis, sunrise is at 7:04 am and sunset at 6:56 pm CDT.

Sunshine

In September, the average sunshine in Otis is 9.4h.

UV index

In September, the average daily maximum UV index in Otis is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 6 in September suggests the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

How hot is it in Otis in September?

During September, Otis experiences an average high-temperature of 88°F (31.1°C) and a low-temperature of 68°F (20°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 104°F (40°C).

What is the average humidity in September in Otis?

In Otis, Louisiana, the average relative humidity in September is 76%.

How much does it rain in Otis in September?

In September, in Otis, Louisiana, the rain falls for 14.8 days. Throughout September, 2.44" (62mm) of precipitation is accumulated.

When it does not snow in Otis?

March through November are months without snowfall in Otis, Louisiana.

How many hours of daylight does Otis have in September?

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

When are sunrise and sunset in September in Otis?

On the first day of September in Otis, sunrise is at 6:47 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:56 pm CDT.

How many hours of sunshine does Otis have in September?

In September, the average sunshine duration in Otis is 9.4h.

How high is the UV index in September in Otis?

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

Average temperature in September - Otis, LA
  • Average high temperature in September: 88°F

The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (56.1°F).

  • Average low temperature in September: 68°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 (40.6°F).

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Average pressure in September
Otis, LA

Average pressure in September - Otis, 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 (29.94"Hg).

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Average wind speed in September
Otis, LA

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

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July, August and September (5mph).

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Average humidity in September
Otis, LA

Average humidity in September - Otis, LA
  • Average humidity in September: 76%

The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Otis, LA

Average rainfall in September - Otis, LA
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is November (2.17").

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Average rainfall days in September
Otis, LA

Average rainfall days in September - Otis, LA
  • Average rainfall days in September: 14.8 days

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is October (9.9 days).

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Average snowfall in September
Otis, LA

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

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

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Average snowfall days in September
Otis, LA

Average snowfall days in September - Otis, LA
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).

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

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

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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Average sunshine days in September
Otis, LA

Average sunshine days in September - Otis, LA
  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in September
Otis, LA

Average UV index in September - Otis, 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
Otis, LA

Average cloud cover in September - Otis, LA
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in September
Otis, LA

Average visibility in September - Otis, LA
  • Average visibility in September: 5mi

The months with the highest visibility are January, June, October, November and December (6mi).
The months with the lowest visibility are February, March, April, May, July, August and September (5mi).

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Otis, Louisiana, USA

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