September weather forecast
Palacios, TX

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Weather in September

September, the first month of the autumn in Palacios, is also a hot month, with an average temperature fluctuating between 86.5°F (30.3°C) and 76.1°F (24.5°C).

Temperature

During September, Palacios records an average high-temperature of a still tropical 86.5°F (30.3°C), marking a slight divergence from August's 90.5°F (32.5°C). The average low-temperature during September nights is a moderately hot 76.1°F (24.5°C).

Heat index

In September, the average heat index is computed to be a sweltering 98.6°F (37°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
In the scope of the heat index, its values resonate with shade and light wind conditions. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Palacios, the average relative humidity in September is 75%.

Rainfall

September is the month with the most rainfall. Rain falls for 19.5 days and accumulates 4.09" (104mm) of precipitation.

Snowfall

In Palacios, Texas, snow does not fall in February through December.

Ocean temperature

In Palacios, in September, the average water temperature is 84.6°F (29.2°C).
Note: With water temperature from 77°F (25°C) to 84.2°F (29°C), all water activities are comfortable and delightful, devoid of discomfort even for lengthened periods.

Daylight

In Palacios, the average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:03 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:11 pm CDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, a regular UV index of 6 translates into these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Notice! The Sun's UV exposure elevates with sand and water reflections.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Palacios in September?

The average high-temperature, in September, in Palacios, is 86.5°F (30.3°C), while the average low-temperature is 76.1°F (24.5°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is computed to be 98.6°F (37°C).

What is the average humidity in September?

In Palacios, the average relative humidity in September is 75%.

What is the rainiest month?

September is the month with the most rainfall. Rain falls for 19.5 days and accumulates 4.09" (104mm) of precipitation.

How many days does it rain in September?

In Palacios, during September, the rain falls for 19.5 days and regularly aggregates up to 4.09" (104mm) of precipitation.

When it does not snow?

In Palacios, snow does not fall in February through December.

How warm is the water in September?

In Palacios, in September, the average water temperature is 84.6°F (29.2°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Palacios have in September?

In Palacios, the average day length in September is 12h and 19min.

What time are sunrise and sunset in September?

On the first day of September in Palacios, sunrise is at 7:03 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:11 pm CDT.

How long on average sun shines in September?

In Palacios, the average sunshine duration in September is 8.8h.

How high is the UV index in September?

In Palacios, Texas, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Palacios, TX

Average temperature in September - Palacios, TX
  • Average high temperature in September: 86.5°F

The warmest month (with the highest average high temperature) is August (90.5°F).
The month with the lowest average high temperature is January (61.7°F).

  • Average low temperature in September: 76.1°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (50°F).

Average pressure in September
Palacios, TX

Average pressure in September - Palacios, TX
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Palacios, TX

Average wind speed in September - Palacios, TX
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).

Average humidity in September
Palacios, TX

Average humidity in September - Palacios, TX
  • Average humidity in September: 75%

The months with the highest relative humidity are February, March and May (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Palacios, TX

Average rainfall in September - Palacios, TX
  • Average rainfall in September: 4.09"

The wettest month (with the highest rainfall) is September (4.09").
The driest month (with the least rainfall) is February (1.26").

Average rainfall days in September
Palacios, TX

Average rainfall days in September - Palacios, TX
  • Average rainfall days in September: 19.5 days

The month with the highest number of rainy days is September (19.5 days).
The month with the least rainy days is February (11.6 days).

Average snowfall in September
Palacios, TX

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

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Palacios, TX

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

The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average sea temperature in September
Palacios, TX

Average sea temperature in September - Palacios, TX
  • Average sea temperature in September: 84.5°F

The best month for swimming (with the highest average sea temperature) is August (86.9°F).
The coldest month (with the lowest average sea temperature) is January (60.5°F).

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

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

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in September: 8h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in September
Palacios, TX

Average sunshine days in September - Palacios, TX
  • Average sunshine days in September: 9.2 days

The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is September (9.2 days).

Average UV index in September
Palacios, TX

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

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in September
Palacios, TX

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

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in September
Palacios, TX

Average visibility in September - Palacios, 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).

Palacios, Texas, USA

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