September weather forecastPresidio, TX
September
Weather in September
The first month of the autumn, September, is still a tropical month in Presidio, Texas, with an average temperature fluctuating between 87.1°F (30.6°C) and 70.2°F (21.2°C).Temperature
September signifies a gentle decline in Presidio's average high-temperature, easing from 93.6°F (34.2°C) in August to a still tropical 87.1°F (30.6°C). September nights observe an average temperature dip to an agreeable 70.2°F (21.2°C).Heat index
For September, the heat index is appraised at a hot 87.8°F (31°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
September is the most humid month in Presidio, Texas, with an average relative humidity of 45%.Rainfall
September is the month with the most rainfall in Presidio, Texas. Rain falls for 11.9 days and accumulates 1.18" (30mm) of precipitation.Snowfall
In Presidio, snow does not fall in February through November.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September in Presidio, sunrise is at 7:35 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 7:43 pm CDT.
Sunshine
The average sunshine in September is 9.5h.UV index
The average daily maximum UV index in September in Presidio, Texas, is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Presidio, TX
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is June (96.3°F).
The month with the lowest average high temperature is January (61.9°F).
- Average low temperature in September: 70.2°F
The month with the highest average low temperature is July (76.6°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in September
Presidio, TX
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Presidio, TX
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is December (5.4mph).
Average humidity in September
Presidio, TX
- Average humidity in September: 45%
The month with the highest relative humidity is September (45%).
The month with the lowest relative humidity is April (23%).
Average rainfall in September
Presidio, TX
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is September (1.18").
The driest month (with the least rainfall) is February (0.12").
Average rainfall days in September
Presidio, TX
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (13 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Presidio, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Presidio, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (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
Presidio, TX
- Average daylight in September: 12h and 18min
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: 9h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 8h and 18min).
Average sunshine days in September
Presidio, TX
- Average sunshine days in September: 13.2 days
The months with the most sunshine days are January and December (27.3 days).
The month with the least sunshine days is September (13.2 days).
Average UV index in September
Presidio, 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
Presidio, TX
- Average cloud cover in September: 20
The month with the most cloud cover is September (Cloud cover 20).
The months with the least cloud cover are May and June (Cloud cover 10).
Average visibility in September
Presidio, 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).
