September weather forecast
Seagoville, TX

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Weather in September

The first month of the autumn, September, is still a hot month in Seagoville, Texas, with temperature in the range of an average low of 69.8°F (21°C) and an average high of 87.6°F (30.9°C).

Temperature

September's arrival subtly correlates with a reduction in the average high-temperature, down from a very hot 95.5°F (35.3°C) in August to a tropical 87.6°F (30.9°C). Throughout September, the temperature falls to an average low of 69.8°F (21°C).

Heat index

The average heat index in September is estimated at a torrid 96.8°F (36°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Note that heat index values are valued for light wind and location in the shade. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In September, the average relative humidity in Seagoville is 65%.

Rainfall

In Seagoville, in September, during 14.5 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Seagoville, Texas, during the entire year, the rain falls for 141.3 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

In September, the average length of the day in Seagoville, Texas, is 12h and 22min.
On the first day of the month, sunrise is at 7:01 am and sunset at 7:50 pm. On the last day of September, in Seagoville, sunrise is at 7:20 am and sunset at 7:11 pm CDT.

Sunshine

The average sunshine in September in Seagoville is 8.5h.

UV index

In September, the average daily maximum UV index in Seagoville is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum high daily UV index of 6 during September translates into the following directions:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Seagoville in September?

In September, the average high-temperature and low-temperature are 87.6°F (30.9°C) and 69.8°F (21°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 96.8°F (36°C).

What is the average humidity in September in Seagoville?

In September, the average relative humidity in Seagoville, Texas, is 65%.

How much does it rain in Seagoville in September?

In Seagoville, Texas, in September, it is raining for 14.5 days, with typically 2.68" (68mm) of accumulated precipitation.

When it does not snow in Seagoville?

In Seagoville, snow does not fall in March through December.

How many hours of daylight does Seagoville have in September?

In Seagoville, Texas, the average day length in September is 12h and 22min.

When is the sunrise / sunset in September in Seagoville?

In September, on the first day of the month, sunrise is at 7:01 am and sunset at 7:50 pm. On the last day of the month, in Seagoville, sunrise is at 7:20 am and sunset at 7:11 pm CDT.

How long on average sun shines in September in Seagoville?

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

What is the UV index reading in September in Seagoville?

In Seagoville, 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 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
Seagoville, TX

Average temperature in September - Seagoville, TX
  • Average high temperature in September: 87.6°F

The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (54.7°F).

  • Average low temperature in September: 69.8°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 (38.8°F).

Average pressure in September
Seagoville, TX

Average pressure in September - Seagoville, 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).

Average wind speed in September
Seagoville, TX

Average wind speed in September - Seagoville, TX
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is September (6.5mph).

Average humidity in September
Seagoville, TX

Average humidity in September - Seagoville, TX
  • Average humidity in September: 65%

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (59%).

Average rainfall in September
Seagoville, TX

Average rainfall in September - Seagoville, TX
  • Average rainfall in September: 2.68"

The wettest month (with the highest rainfall) is October (4.13").
The driest month (with the least rainfall) is February (1.61").

Average rainfall days in September
Seagoville, TX

Average rainfall days in September - Seagoville, TX
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in September
Seagoville, TX

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

The month with the highest snowfall is February (0.75").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Seagoville, TX

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

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Seagoville, TX
  • Average daylight in September: 12h and 2min

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

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in September
Seagoville, TX

Average sunshine days in September - Seagoville, TX
  • Average sunshine days in September: 14 days

The month with the most sunshine days is January (23 days).
The month with the least sunshine days is September (14 days).

Average UV index in September
Seagoville, TX

Average UV index in September - Seagoville, TX
  • 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).

Average cloud cover in September
Seagoville, TX

Average cloud cover in September - Seagoville, TX
  • Average cloud cover in September: 29

The months with the most cloud cover are February and March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in September
Seagoville, TX

Average visibility in September - Seagoville, 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).

Seagoville, Texas, USA

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