September weather forecast
Runaway Bay, TX

englishespañol中文
Share

Weather in September

September, the first month of the autumn in Runaway Bay, is still a tropical month, with an average temperature varying between 68°F (20°C) and 86.9°F (30.5°C).

Temperature

The arrival of September is marked by a minor reduction in average high-temperature, sliding from a very hot 95.5°F (35.3°C) in August to a tropical 86.9°F (30.5°C). An average nighttime temperature of 68°F (20°C) is witnessed in Runaway Bay throughout September.

Heat index

The heat index in September is calculated to be a fiery hot 95°F (35°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In September, the average relative humidity is 64%.

Rainfall

In Runaway Bay, Texas, during September, the rain falls for 12.5 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 125.7 rainfall days, and 25.28" (642mm) of precipitation is accumulated.

Snowfall

In Runaway Bay, snow does not fall in April through November.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of the month, sunrise is at 7:06 am and sunset at 7:56 pm. On the last day of September, in Runaway Bay, sunrise is at 7:25 am and sunset at 7:16 pm CDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

In Runaway Bay, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
[Resources]

Frequently asked questions

How hot is September in Runaway Bay?

During September, Runaway Bay experiences an average high-temperature of 86.9°F (30.5°C) and a low-temperature of 68°F (20°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 95°F (35°C).

What is the average humidity in September in Runaway Bay?

In September, the average relative humidity is 64%.

How much does it rain in Runaway Bay in September?

In Runaway Bay, during September, the rain falls for 12.5 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When it does not snow in Runaway Bay?

April through November are months without snowfall.

How many hours of daylight does Runaway Bay have in September?

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

When is the sunrise / sunset in September in Runaway Bay?

In September, on the first day of the month, sunrise is at 7:06 am and sunset at 7:56 pm. On the last day of the month, in Runaway Bay, sunrise is at 7:25 am and sunset at 7:16 pm CDT.

How long on average sun shines in September in Runaway Bay?

In Runaway Bay, Texas, the average sunshine duration in September is 8.5h.

What is the UV index intensity in September in Runaway Bay?

The average daily maximum UV index in September in Runaway Bay, Texas, is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Runaway Bay, TX

Average temperature in September - Runaway Bay, TX
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is August (95.5°F).
The months with the lowest average high temperature are January and December (54.5°F).

  • Average low temperature in September: 68°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).

[Resources]

Average pressure in September
Runaway Bay, TX

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

[Resources]

Average wind speed in September
Runaway Bay, TX

Average wind speed in September - Runaway Bay, TX
  • Average wind speed in September: 7.2mph

The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is September (7.2mph).

[Resources]

Average humidity in September
Runaway Bay, TX

Average humidity in September - Runaway Bay, TX
  • Average humidity in September: 64%

The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (55%).

[Resources]

Average rainfall in September
Runaway Bay, TX

Average rainfall in September - Runaway Bay, TX
  • Average rainfall in September: 2.68"

The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is January (1.22").

[Resources]

Average rainfall days in September
Runaway Bay, TX

Average rainfall days in September - Runaway Bay, TX
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (5.7 days).

[Resources]

Average snowfall in September
Runaway Bay, TX

Average snowfall in September - Runaway Bay, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

[Resources]

Average snowfall days in September
Runaway Bay, TX

Average snowfall days in September - Runaway Bay, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Runaway Bay, TX

Average daylight in September / Average sunshine in September - Runaway Bay, 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 July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

[Resources]

Average sunshine days in September
Runaway Bay, TX

Average sunshine days in September - Runaway Bay, TX
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is January (23.6 days).
The month with the least sunshine days is May (13.4 days).

[Resources]

Average UV index in September
Runaway Bay, TX

Average UV index in September - Runaway Bay, 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).

[Resources]

Average cloud cover in September
Runaway Bay, TX

Average cloud cover in September - Runaway Bay, TX
  • Average cloud cover in September: 28

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 18).

[Resources]

Average visibility in September
Runaway Bay, TX

Average visibility in September - Runaway Bay, 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).

[Resources]

Runaway Bay, Texas, USA

Weather forecast for your location

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