Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September marks an average high-temperature of a tropical 90.5°F (32.5°C), hardly differing from August's 95.5°F (35.3°C). Zapata Ranch experiences a mean low-temperature of 77.9°F (25.5°C) during September.Heat index
The average heat index in September is calculated to be an extremely hot 107.6°F (42°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In September, the average relative humidity is 69%.Rainfall
The month with the most rainfall is September, when the rain falls for 17.2 days and typically aggregates up to 2.64" (67mm) of precipitation.Daylight
In September, the average length of the day is 12h and 18min.On the first day of September, sunrise is at 7:11 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:18 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 7 during September translates into the following guidance:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
What is the rainiest month?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Zapata Ranch, TX
- Average high temperature in September: 90.5°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (68.5°F).
- Average low temperature in September: 77.9°F
The month with the highest average low temperature is August (79.5°F).
The coldest month (with the lowest average low temperature) is January (54.1°F).
Average pressure in September
Zapata Ranch, TX
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Zapata Ranch, TX
- Average wind speed in September: 8.9mph
The windiest months (with the highest average wind speed) are April and May (11.9mph).
The calmest month (with the lowest average wind speed) is September (8.9mph).
Average humidity in September
Zapata Ranch, TX
- Average humidity in September: 69%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Zapata Ranch, TX
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is September (2.64").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in September
Zapata Ranch, TX
- Average rainfall days in September: 17.2 days
The month with the highest number of rainy days is September (17.2 days).
The month with the least rainy days is July (7.4 days).
Average daylight in September /
Average sunshine in September
Zapata Ranch, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Zapata Ranch, TX
- Average sunshine days in September: 10.6 days
The month with the most sunshine days is July (22.1 days).
The month with the least sunshine days is September (10.6 days).
Average UV index in September
Zapata Ranch, 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 4).
Average cloud cover in September
Zapata Ranch, TX
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Zapata Ranch, 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).
Zapata Ranch, Texas, USA
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