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 is characterized by a mild reduction in the average high-temperature, from a very hot 97.9°F (36.6°C) in August to a tropical 90.5°F (32.5°C). An average temperature of 73.2°F (22.9°C) marks the nights in September.Heat index
For most parts of September, the heat index is appraised at a fiery hot 98.6°F (37°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.Note that heat index values are valued for light wind and location in the shade. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
The average relative humidity in September is 56%.Rainfall
In Del Rio, in September, it is raining for 11.3 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 85.2 rainfall days, and 9.61" (244mm) of precipitation is accumulated.Snowfall
In Del Rio, snow does not fall in March through December.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September in Del Rio, sunrise is at 7:21 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 7:29 pm CDT.
Sunshine
In Del Rio, Texas, the average sunshine in September is 8.8h.UV index
In Del Rio, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 6 suggests this advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
How hot is it in Del Rio in September?
What is the average humidity in September in Del Rio?
How many days does it rain in September in Del Rio?
When it does not snow in Del Rio?
What is the average length of the day in September in Del Rio?
When is the sunrise / sunset in September in Del Rio?
How many hours of sunshine does Del Rio have in September?
How high is the UV index in September in Del Rio?
Average temperature in September
Del Rio, TX
- Average high temperature in September: 90.5°F
The warmest month (with the highest average high temperature) is August (97.9°F).
The month with the lowest average high temperature is January (63.3°F).
- Average low temperature in September: 73.2°F
The month with the highest average low temperature is August (78.8°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).
Average pressure in September
Del Rio, TX
- Average pressure in September: 29.96"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).
Average wind speed in September
Del Rio, TX
- Average wind speed in September: 9.7mph
The windiest month (with the highest average wind speed) is June (12.8mph).
The calmest month (with the lowest average wind speed) is December (8.5mph).
Average humidity in September
Del Rio, TX
- Average humidity in September: 56%
The month with the highest relative humidity is November (60%).
The month with the lowest relative humidity is August (47%).
Average rainfall in September
Del Rio, TX
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in September
Del Rio, TX
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (11.9 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in September
Del Rio, TX
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Del Rio, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Del Rio, 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 5min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).
Average sunshine days in September
Del Rio, TX
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is January (26.3 days).
The month with the least sunshine days is May (15.5 days).
Average UV index in September
Del Rio, TX
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Del Rio, TX
- Average cloud cover in September: 28
The months with the most cloud cover are March and May (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Del Rio, 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).
Del Rio, Texas, USA
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