Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
The commencement of July records an average high-temperature of a still fiery hot 99.7°F (37.6°C), barely varying from June's 98.2°F (36.8°C). An average nighttime temperature of 78.8°F (26°C) is observed during July.Heat index
For most parts of July, the heat index is appraised at a life-threatening hot 120.2°F (49°C). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.Realize that the values for the heat index are set for shaded places and light winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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 achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. 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. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
In Islitas, the average relative humidity in July is 52%.Rainfall
In Islitas, during July, the rain falls for 7.9 days and regularly aggregates up to 0.83" (21mm) of precipitation. In Islitas, during the entire year, the rain falls for 91.9 days and collects up to 10.55" (268mm) of precipitation.Snowfall
In Islitas, snow does not fall in March through November.Daylight
The average length of the day in July is 13h and 41min.On the first day of July, sunrise is at 6:46 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 8:28 pm CDT.
Sunshine
July has the most sunshine of the year in Islitas, with an average of 11.2h of sunshine.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 8. A UV Index estimate of 8 to 10 represents a very high health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 8 in July translates into these instructions:
Take important precautions because unprotected skin can burn and be harmed swiftly. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in July?
What is the average humidity in July?
How many days does it rain in July?
When it does not snow?
What is the average length of the day in July?
When is the sunrise / sunset in July in Islitas?
What month has the most sunshine?
How many hours of sunshine does Islitas have in July?
What is the month with the highest UV index?
What is the UV index intensity in July?
Average temperature in July
Islitas, TX
- Average high temperature in July: 99.7°F
The warmest month (with the highest average high temperature) is August (100°F).
The month with the lowest average high temperature is January (66.9°F).
- Average low temperature in July: 78.8°F
The month with the highest average low temperature is August (79.9°F).
The coldest month (with the lowest average low temperature) is January (50.2°F).
Average pressure in July
Islitas, TX
- Average pressure in July: 29.91"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are May and June (29.86"Hg).
Average wind speed in July
Islitas, TX
- Average wind speed in July: 13.5mph
The windiest month (with the highest average wind speed) is July (13.5mph).
The calmest month (with the lowest average wind speed) is December (8.9mph).
Average humidity in July
Islitas, TX
- Average humidity in July: 52%
The month with the highest relative humidity is December (62%).
The month with the lowest relative humidity is August (49%).
Average rainfall in July
Islitas, TX
- Average rainfall in July: 0.83"
The wettest month (with the highest rainfall) is September (2.17").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days in July
Islitas, TX
- Average rainfall days in July: 7.9 days
The month with the highest number of rainy days is September (12.9 days).
The month with the least rainy days is November (5.5 days).
Average snowfall days in July
Islitas, TX
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in July /
Average sunshine in July
Islitas, TX
- Average daylight in July: 13h and 4min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in July: 11h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in July
Islitas, TX
- Average sunshine days in July: 21.8 days
The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is September (15.1 days).
Average UV index in July
Islitas, TX
- Average UV index in July: 8
The months with the highest UV index are July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in July
Islitas, TX
- Average cloud cover in July: 18
The month with the most cloud cover is December (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in July
Islitas, TX
- Average visibility in July: 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).
Islitas, Texas, USA
Weather forecast for your location
2. Allow the app to use your location