August weather forecastSan Isidro, TX
August
Weather in August
The last month of the summer, August, is also a fiery hot month in San Isidro, Texas, with an average temperature fluctuating between 100°F (37.8°C) and 80.1°F (26.7°C).Temperature
San Isidro's temperatures tend to reach their peak averages in August, with a high of 100°F (37.8°C) and a low of 80.1°F (26.7°C).Heat index
Throughout August, the heat index is evaluated at a life-threatening hot 122°F (50°C). Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.Heat index readings emphasize conditions of light breezes and shaded spots. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
August is the least humid month, with an average relative humidity of 53%.Rainfall
In San Isidro, Texas, during August, the rain falls for 6.9 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 98.5 rainfall days, and 13.11" (333mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
In San Isidro, the average length of the day in August is 13h and 3min.On the first day of August, sunrise is at 6:59 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:54 pm CDT.
Sunshine
In August, the average sunshine is 9.7h.UV index
July and August, with an average maximum UV index of 8, are months with the highest UV index. A UV Index estimate of 8 to 10 represents a very high health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 8 during August leads to these advisories:
Without proper safety measures, skin and eyes can be quickly harmed. Be sure to protect yourself. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
San Isidro, TX
- Average high temperature in August: 100°F
The warmest month (with the highest average high temperature) is August (100°F).
The month with the lowest average high temperature is January (69.8°F).
- Average low temperature in August: 80.1°F
The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (52.7°F).
Average pressure in August
San Isidro, TX
- Average pressure in August: 29.9"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).
Average wind speed in August
San Isidro, TX
- Average wind speed in August: 12.4mph
The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is December (9.2mph).
Average humidity in August
San Isidro, TX
- Average humidity in August: 53%
The month with the highest relative humidity is December (65%).
The month with the lowest relative humidity is August (53%).
Average rainfall in August
San Isidro, TX
- Average rainfall in August: 0.63"
The wettest month (with the highest rainfall) is September (2.56").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in August
San Isidro, TX
- Average rainfall days in August: 6.9 days
The month with the highest number of rainy days is September (15.3 days).
The month with the least rainy days is February (5.8 days).
Average snowfall days in August
San Isidro, TX
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in August /
Average sunshine in August
San Isidro, TX
- Average daylight in August: 13h and 6min
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 August: 9h and 42min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in August
San Isidro, TX
- Average sunshine days in August: 22.6 days
The months with the most sunshine days are July and August (22.6 days).
The month with the least sunshine days is September (12.9 days).
Average UV index in August
San Isidro, TX
- Average UV index in August: 8
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 4).
Average cloud cover in August
San Isidro, TX
- Average cloud cover in August: 16
The month with the most cloud cover is December (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in August
San Isidro, TX
- Average visibility in August: 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).
