Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
October's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from September's 93°F (33.9°C) to a still hot 87.6°F (30.9°C). During the nights in October, San Isidro experiences a consistent average temperature of 70°F (21.1°C).Heat index
For most parts of October, the heat index is estimated at a very hot 95°F (35°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.Research indicates the heat index considers values in shaded locales and with light winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
In October, the average relative humidity in San Isidro is 61%.Rainfall
In San Isidro, in October, during 8.2 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In San Isidro, during the entire year, the rain falls for 98.5 days and collects up to 13.11" (333mm) of precipitation.Snowfall
March through December are months without snowfall.Daylight
In San Isidro, the average length of the day in October is 11h and 31min.On the first day of October, sunrise is at 7:26 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 6:51 pm CDT.
Sunshine
In San Isidro, Texas, the average sunshine in October is 8.2h.UV index
In San Isidro, the average daily maximum UV index in October is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 during October translates into the following directions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
How hot is October in San Isidro?
What is the average humidity in October in San Isidro?
How many days does it rain in October in San Isidro?
When it does not snow in San Isidro?
What is the average length of the day in October in San Isidro?
What time are sunrise and sunset in October in San Isidro?
How long on average sun shines in October in San Isidro?
How high is the UV index in October in San Isidro?
Average temperature in October
San Isidro, TX
- Average high temperature in October: 87.6°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 October: 70°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 October
San Isidro, TX
- Average pressure in October: 29.97"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 October
San Isidro, TX
- Average wind speed in October: 9.9mph
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 October
San Isidro, TX
- Average humidity in October: 61%
The month with the highest relative humidity is December (65%).
The month with the lowest relative humidity is August (53%).
Average rainfall in October
San Isidro, TX
- Average rainfall in October: 0.98"
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 October
San Isidro, TX
- Average rainfall days in October: 8.2 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 October
San Isidro, TX
- Average snowfall days in October: 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 October /
Average sunshine in October
San Isidro, TX
- Average daylight in October: 11h and 3min
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 October: 8h and 1min
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 October
San Isidro, TX
- Average sunshine days in October: 21.1 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 October
San Isidro, TX
- Average UV index in October: 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 4).
Average cloud cover in October
San Isidro, TX
- Average cloud cover in October: 24
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 October
San Isidro, TX
- Average visibility in October: 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).
San Isidro, Texas, USA
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