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 snowfall in September
- Average snowfall 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
September's average high-temperature is a still hot 86.9°F (30.5°C), maintaining a close comparison with August's 91.9°F (33.3°C). Manvel records a mean low-temperature of 73.4°F (23°C) in September.Heat index
In September, the heat index is estimated at a sweltering 100.4°F (38°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant 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 prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
The average relative humidity in September is 77%.Rainfall
September is the month with the most rainfall. Rain falls for 21 days and accumulates 5.63" (143mm) of precipitation.Snowfall
Months with snowfall are January, September and December. The months with the most snowfall are January, September and December, with an average 0.04" (1mm) of accumulated snow.Daylight
The average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 6:59 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:07 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the UV index of 6 transforms into the following advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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 in Manvel?
How much does it rain in September?
What is the snowiest month in Manvel?
When does it start to snow?
What is the average length of the day in September?
When 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
Manvel, TX
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (61.3°F).
- Average low temperature in September: 73.4°F
The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (47.1°F).
Average pressure in September
Manvel, 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 (29.93"Hg).
Average wind speed in September
Manvel, TX
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are August and September (6.5mph).
Average humidity in September
Manvel, TX
- Average humidity in September: 77%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Manvel, TX
- Average rainfall in September: 5.63"
The wettest month (with the highest rainfall) is September (5.63").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in September
Manvel, TX
- Average rainfall days in September: 21 days
The month with the highest number of rainy days is September (21 days).
The month with the least rainy days is January (11.9 days).
Average snowfall in September
Manvel, TX
- Average snowfall in September: 0.04"
The months with the highest snowfall are January, September and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, October and November (0").
Average snowfall days in September
Manvel, TX
- Average snowfall days in September: 0.1 days
The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
Manvel, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
Manvel, TX
- Average sunshine days in September: 7.5 days
The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is September (7.5 days).
Average UV index in September
Manvel, TX
- 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).
Average cloud cover in September
Manvel, TX
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Manvel, 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).
Manvel, Texas, USA
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