September weather forecast
Seminole, TX

Share

Weather in September

September, the first month of the autumn in Seminole, is also a moderately hot month, with an average temperature ranging between min 66°F (18.9°C) and max 84.2°F (29°C).

Temperature

Seminole's average high-temperature decreases in September, falling from a hot 93.2°F (34°C) in August to a moderately hot 84.2°F (29°C). During the month of September, Seminole experiences a steady low-temperature average of 66°F (18.9°C).

Heat index

The heat index value during September is computed to be a hot 86°F (30°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

With an average relative humidity of 54%, September is the most humid month.

Rainfall

The month with the most rainfall is September, when the rain falls for 11.8 days and typically aggregates up to 2.2" (56mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of September in Seminole, sunrise is at 7:25 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 7:36 pm CDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

The average high-temperature, in September, in Seminole, is 84.2°F (29°C), while the average low-temperature is 66°F (18.9°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 86°F (30°C).

What is the most humid month?

The most humid month is September, with an average relative humidity of 54%.

What is the average humidity in September?

In Seminole, the average relative humidity in September is 54%.

What is the wettest month?

The month with the most rainfall is September, when the rain falls for 11.8 days and typically aggregates up to 2.2" (56mm) of precipitation.

How much does it rain in September?

In Seminole, in September, it is raining for 11.8 days, with typically 2.2" (56mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:25 am and sunset at 8:14 pm. On the last day of the month, in Seminole, sunrise is at 7:44 am and sunset at 7:36 pm CDT.

How long on average sun shines in September in Seminole?

In September, the average sunshine duration is 9.1h.

What is the UV index intensity in September?

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
Seminole, TX

Average temperature in September - Seminole, TX
  • Average high temperature in September: 84.2°F

The warmest months (with the highest average high temperature) are July and August (93.2°F).
The month with the lowest average high temperature is December (54.3°F).

  • Average low temperature in September: 66°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).

Average pressure in September
Seminole, TX

Average pressure in September - Seminole, TX
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in September
Seminole, TX

Average wind speed in September - Seminole, TX
  • Average wind speed in September: 9.9mph

The windiest month (with the highest average wind speed) is April (13.2mph).
The calmest months (with the lowest average wind speed) are August and September (9.9mph).

Average humidity in September
Seminole, TX

Average humidity in September - Seminole, TX
  • Average humidity in September: 54%

The month with the highest relative humidity is September (54%).
The month with the lowest relative humidity is April (34%).

Average rainfall in September
Seminole, TX

Average rainfall in September - Seminole, TX
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is September (2.2").
The driest month (with the least rainfall) is February (0.28").

Average rainfall days in September
Seminole, TX

Average rainfall days in September - Seminole, TX
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is September (11.8 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in September
Seminole, TX

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

The month with the highest snowfall is December (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Seminole, TX

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

The month with the highest number of snowfall days is December (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Seminole, 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: 9h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

Average sunshine days in September
Seminole, TX

Average sunshine days in September - Seminole, TX
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is January (27.2 days).
The month with the least sunshine days is September (15.5 days).

Average UV index in September
Seminole, TX

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

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Seminole, TX

Average cloud cover in September - Seminole, TX
  • Average cloud cover in September: 23

The month with the most cloud cover is September (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 13).

Average visibility in September
Seminole, TX

Average visibility in September - Seminole, 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).

Seminole, Texas, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location