September weather forecast
Port O'Connor, TX

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Weather in September

September, the first month of the autumn in Port O'Connor, is also a hot month, with an average temperature varying between 86.9°F (30.5°C) and 76.1°F (24.5°C).

Temperature

September is marked by an average high-temperature of a still tropical 86.9°F (30.5°C), almost identical to the preceding month. September brings Port O'Connor a consistent average low-temperature of 76.1°F (24.5°C).

Heat index

During September, the heat index is calculated to be a sweltering 98.6°F (37°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially vital to children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In Port O'Connor, the average relative humidity in September is 74%.

Rainfall

The month with the most rainfall in Port O'Connor, Texas, is September, when the rain falls for 20 days and typically aggregates up to 4.25" (108mm) of precipitation.

Snowfall

In Port O'Connor, snow does not fall in February through December.

Ocean temperature

In September, the average ocean temperature in Port O'Connor is 84.7°F (29.3°C).
Note: 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.

Daylight

In Port O'Connor, the average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:04 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:12 pm CDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In Port O'Connor, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, an average UV index of 6 transforms into the following instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Notice! Sand and water reflections contribute to a stronger UV exposure.
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Frequently asked questions

How hot does it get in Port O'Connor in September?

An average high-temperature, in September, in Port O'Connor, is 86.9°F (30.5°C) and the average low-temperature is 76.1°F (24.5°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 98.6°F (37°C).

What is the average humidity in September in Port O'Connor?

The average relative humidity in September in Port O'Connor, Texas, is 74%.

What is the wettest month in Port O'Connor?

September is the month with the most rainfall. Rain falls for 20 days and accumulates 4.25" (108mm) of precipitation.

How many days does it rain in September in Port O'Connor?

In Port O'Connor, in September, during 20 rainfall days, 4.25" (108mm) of precipitation is typically accumulated.

When it does not snow in Port O'Connor?

In Port O'Connor, snow does not fall in February through December.

How warm is the water in September in Port O'Connor?

In Port O'Connor, in September, the average water temperature is 84.7°F (29.3°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in September in Port O'Connor?

The average day length in September in Port O'Connor, Texas, is 12h and 19min.

When are sunrise and sunset in September in Port O'Connor?

In September, on the first day of the month, sunrise is at 7:04 am and sunset at 7:46 pm. On the last day of the month, in Port O'Connor, Texas, sunrise is at 7:18 am and sunset at 7:12 pm CDT.

How many hours of sunshine does Port O'Connor have in September?

In Port O'Connor, Texas, the average sunshine duration in September is 8.5h.

How high is the UV index in September in Port O'Connor?

The average daily maximum UV index in September in Port O'Connor, Texas, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Port O'Connor, TX

Average temperature in September - Port O
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is January (62.2°F).

  • Average low temperature in September: 76.1°F

The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).

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Average pressure in September
Port O'Connor, TX

Average pressure in September - Port O
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Port O'Connor, TX

Average wind speed in September - Port O
  • Average wind speed in September: 8.5mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is September (8.5mph).

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Average humidity in September
Port O'Connor, TX

Average humidity in September - Port O
  • Average humidity in September: 74%

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

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Average rainfall in September
Port O'Connor, TX

Average rainfall in September - Port O
  • Average rainfall in September: 4.25"

The wettest month (with the highest rainfall) is September (4.25").
The driest month (with the least rainfall) is February (0.87").

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Average rainfall days in September
Port O'Connor, TX

Average rainfall days in September - Port O
  • Average rainfall days in September: 20 days

The month with the highest number of rainy days is September (20 days).
The month with the least rainy days is January (10.8 days).

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Average snowfall in September
Port O'Connor, TX

Average snowfall in September - Port O
  • 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").

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Average snowfall days in September
Port O'Connor, TX

Average snowfall days in September - Port O
  • Average snowfall days in September: 0 days

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

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Average sea temperature in September
Port O'Connor, TX

Average sea temperature in September - Port O
  • Average sea temperature in September: 84.7°F

The best month for swimming (with the highest average sea temperature) is August (87°F).
The coldest months (with the lowest average sea temperature) are January and February (60.8°F).

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Average daylight in September /
Average sunshine in September
Port O'Connor, TX

Average daylight in September / Average sunshine in September - Port O
  • 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

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Average sunshine days in September
Port O'Connor, TX

Average sunshine days in September - Port O
  • Average sunshine days in September: 8.5 days

The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is September (8.5 days).

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Average UV index in September
Port O'Connor, TX

Average UV index in September - Port O
  • 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 3).

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Average cloud cover in September
Port O'Connor, TX

Average cloud cover in September - Port O
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in September
Port O'Connor, TX

Average visibility in September - Port O
  • 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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Port O'Connor, Texas, USA

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