September weather forecast
Kopperl, TX

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Weather in September

September, the first month of the autumn in Kopperl, is also a hot month, with an average temperature fluctuating between 70.3°F (21.3°C) and 88.2°F (31.2°C).

Temperature

A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a fiery hot 96.1°F (35.6°C) to a tropical 88.2°F (31.2°C). In September, the nighttime temperature lowers to an average of 70.3°F (21.3°C).

Heat index

During September, the heat index is calculated to be a very hot 96.8°F (36°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Always consider that heat index estimations are for light winds and places in the shade. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in September in Kopperl, Texas, is 64%.

Rainfall

In September, in Kopperl, the rain falls for 12.7 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. In Kopperl, during the entire year, the rain falls for 116.7 days and collects up to 19.06" (484mm) of precipitation.

Snowfall

January, April through December are months without snowfall.

Daylight

The average length of the day in September is 12h and 21min.
On the first day of September, sunrise is at 7:05 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:15 pm CDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in September transforms into the following instructions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

Is it hot in Kopperl during September?

During September, Kopperl experiences an average high-temperature of 88.2°F (31.2°C) and a low-temperature of 70.3°F (21.3°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in September is calculated to be 96.8°F (36°C).

What is the average humidity in September in Kopperl?

In Kopperl, Texas, the average relative humidity in September is 64%.

How much does it rain in Kopperl in September?

In Kopperl, during September, the rain falls for 12.7 days and regularly aggregates up to 1.54" (39mm) of precipitation.

When it does not snow in Kopperl?

In Kopperl, Texas, snow does not fall in January, April through December.

What is the average length of the day in September in Kopperl?

In September, the average day length in Kopperl, Texas, is 12h and 21min.

When are sunrise and sunset in September in Kopperl?

On the first day of September in Kopperl, sunrise is at 7:05 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:15 pm CDT.

How long on average sun shines in September in Kopperl?

In September, the average sunshine duration in Kopperl is 8.5h.

How high is the UV index in September in Kopperl?

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Kopperl, TX

Average temperature in September - Kopperl, TX
  • Average high temperature in September: 88.2°F

The warmest month (with the highest average high temperature) is August (96.1°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in September: 70.3°F

The month with the highest average low temperature is August (75.9°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).

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Average pressure in September
Kopperl, TX

Average pressure in September - Kopperl, TX
  • 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 (29.91"Hg).

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Average wind speed in September
Kopperl, TX

Average wind speed in September - Kopperl, TX
  • Average wind speed in September: 7mph

The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest month (with the lowest average wind speed) is September (7mph).

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Average humidity in September
Kopperl, TX

Average humidity in September - Kopperl, TX
  • Average humidity in September: 64%

The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in September
Kopperl, TX

Average rainfall in September - Kopperl, TX
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is October (2.6").
The driest month (with the least rainfall) is November (0.83").

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Average rainfall days in September
Kopperl, TX

Average rainfall days in September - Kopperl, TX
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is May (13 days).
The month with the least rainy days is January (5.4 days).

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Average snowfall in September
Kopperl, TX

Average snowfall in September - Kopperl, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.35").
The months with the least snowfall are January, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Kopperl, TX

Average snowfall days in September - Kopperl, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Kopperl, TX

Average daylight in September / Average sunshine in September - Kopperl, TX
  • 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: 8h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in September
Kopperl, TX

Average sunshine days in September - Kopperl, TX
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is January (24.1 days).
The month with the least sunshine days is May (14.9 days).

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Average UV index in September
Kopperl, TX

Average UV index in September - Kopperl, TX
  • Average UV index in September: 6

The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Kopperl, TX

Average cloud cover in September - Kopperl, TX
  • Average cloud cover in September: 30

The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in September
Kopperl, TX

Average visibility in September - Kopperl, TX
  • 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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Kopperl, Texas, USA

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