September weather forecast
Peace Valley Harbor, TX

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Weather in September

September, the first month of the autumn in Peace Valley Harbor, is still a tropical month, with an average temperature fluctuating between 74.8°F (23.8°C) and 90.3°F (32.4°C).

Temperature

With September's onset, the weather reveals a slight temperature decrease, transitioning from a sweltering 97°F (36.1°C) in August to a hot 90.3°F (32.4°C). September nights experience a consistent temperature drop to a warm 74.8°F (23.8°C).

Heat index

September's heat index is evaluated at an extremely hot 105.8°F (41°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', arises from combining readings of air temperature and relative moisture content. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. 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. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In September, the average relative humidity is 69%.

Rainfall

September is the month with the most rainfall. Rain falls for 16.8 days and accumulates 2.2" (56mm) of precipitation.

Snowfall

March through November are months without snowfall in Peace Valley Harbor.

Daylight

In September, the average length of the day in Peace Valley Harbor is 12h and 19min.
On the first day of the month, sunrise is at 7:10 am and sunset at 7:52 pm. On the last day of September, in Peace Valley Harbor, sunrise is at 7:24 am and sunset at 7:18 pm CDT.

Sunshine

In Peace Valley Harbor, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September in Peace Valley Harbor, Texas, is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Deter overexposure. Protecting against the sun's effects is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

How hot is it in Peace Valley Harbor in September?

In September, the average high-temperature and low-temperature in Peace Valley Harbor, Texas, are 90.3°F (32.4°C) and 74.8°F (23.8°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in September is evaluated at 105.8°F (41°C).

What is the average humidity in September in Peace Valley Harbor?

In September, the average relative humidity in Peace Valley Harbor, Texas, is 69%.

What is the rainiest month in Peace Valley Harbor?

The month with the most rainfall in Peace Valley Harbor, Texas, is September, when the rain falls for 16.8 days and typically aggregates up to 2.2" (56mm) of precipitation.

How many days does it rain in September in Peace Valley Harbor?

In September, the rain falls for 16.8 days. Throughout September, 2.2" (56mm) of precipitation is accumulated.

When it does not snow in Peace Valley Harbor?

March through November are months without snowfall in Peace Valley Harbor, Texas.

What is the average length of the day in September in Peace Valley Harbor?

The average day length in September in Peace Valley Harbor is 12h and 19min.

What time are sunrise and sunset in September in Peace Valley Harbor?

In September, on the first day of the month, sunrise is at 7:10 am and sunset at 7:52 pm. On the last day of the month, in Peace Valley Harbor, Texas, sunrise is at 7:24 am and sunset at 7:18 pm CDT.

How long on average sun shines in September in Peace Valley Harbor?

In September, the average sunshine duration in Peace Valley Harbor, Texas, is 8.5h.

What is the UV index intensity in September in Peace Valley Harbor?

In Peace Valley Harbor, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
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
Peace Valley Harbor, TX

Average temperature in September - Peace Valley Harbor, TX
  • Average high temperature in September: 90.3°F

The warmest month (with the highest average high temperature) is August (97°F).
The month with the lowest average high temperature is January (64.4°F).

  • Average low temperature in September: 74.8°F

The month with the highest average low temperature is August (77.7°F).
The coldest month (with the lowest average low temperature) is January (48.6°F).

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Average pressure in September
Peace Valley Harbor, TX

Average pressure in September - Peace Valley Harbor, TX
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).

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Average wind speed in September
Peace Valley Harbor, TX

Average wind speed in September - Peace Valley Harbor, TX
  • Average wind speed in September: 8mph

The windiest month (with the highest average wind speed) is May (10.7mph).
The calmest month (with the lowest average wind speed) is September (8mph).

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Average humidity in September
Peace Valley Harbor, TX

Average humidity in September - Peace Valley Harbor, TX
  • Average humidity in September: 69%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (64%).

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Average rainfall in September
Peace Valley Harbor, TX

Average rainfall in September - Peace Valley Harbor, 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 (0.59").

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Average rainfall days in September
Peace Valley Harbor, TX

Average rainfall days in September - Peace Valley Harbor, TX
  • Average rainfall days in September: 16.8 days

The month with the highest number of rainy days is September (16.8 days).
The month with the least rainy days is January (8.6 days).

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Average snowfall in September
Peace Valley Harbor, TX

Average snowfall in September - Peace Valley Harbor, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Peace Valley Harbor, TX

Average snowfall days in September - Peace Valley Harbor, TX
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Peace Valley Harbor, TX

Average daylight in September / Average sunshine in September - Peace Valley Harbor, 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 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 54min).

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Average sunshine days in September
Peace Valley Harbor, TX

Average sunshine days in September - Peace Valley Harbor, TX
  • Average sunshine days in September: 11.2 days

The month with the most sunshine days is August (19.8 days).
The month with the least sunshine days is September (11.2 days).

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Average UV index in September
Peace Valley Harbor, TX

Average UV index in September - Peace Valley Harbor, TX
  • Average UV index in September: 7

The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Peace Valley Harbor, TX

Average cloud cover in September - Peace Valley Harbor, TX
  • Average cloud cover in September: 32

The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in September
Peace Valley Harbor, TX

Average visibility in September - Peace Valley Harbor, 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).

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Peace Valley Harbor, Texas, USA

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