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 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
July's arrival brings an average high-temperature of a still very hot 97.3°F (36.3°C), slightly deviating from June's 95.5°F (35.3°C). In the month of July, San Juan records a consistent average low-temperature of 77.5°F (25.3°C).Heat index
Throughout July, the heat index is appraised at a life-threatening hot 123.8°F (51°C). Watchful: Heat cramps and heat exhaustion are predicted. Continued exertion could lead to heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
The average relative humidity in July is 63%.Rainfall
In San Juan, in July, it is raining for 6.5 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, there are 94.1 rainfall days, and 9.06" (230mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall.Daylight
In San Juan, the average length of the day in July is 13h and 35min.On the first day of July, sunrise is at 6:44 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 8:19 pm CDT.
Sunshine
With an average of 11.4h of sunshine, July has the most sunshine of the year.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 8. A UV Index value of 8 to 10 symbolizes a very high health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 8 in July translates into the following recommendations:
Don't neglect protection; skin and eyes can be burned swiftly if left exposed. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in July?
What is the average humidity in July in San Juan?
How many days does it rain in July?
When it does not snow?
What is the average length of the day in July?
What time are sunrise and sunset in July?
What month has the most sunshine in San Juan?
How many hours of sunshine does San Juan have in July?
When is the highest UV index?
What is the UV index intensity in July?
Average temperature in July
San Juan, TX
- Average high temperature in July: 97.3°F
The warmest month (with the highest average high temperature) is August (98.2°F).
The month with the lowest average high temperature is January (69.6°F).
- Average low temperature in July: 77.5°F
The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (53.4°F).
Average pressure in July
San Juan, TX
- Average pressure in July: 29.92"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 July
San Juan, TX
- Average wind speed in July: 12.2mph
The windiest month (with the highest average wind speed) is May (12.4mph).
The calmest month (with the lowest average wind speed) is September (8.9mph).
Average humidity in July
San Juan, TX
- Average humidity in July: 63%
The month with the highest relative humidity is May (69%).
The month with the lowest relative humidity is August (59%).
Average rainfall in July
San Juan, TX
- Average rainfall in July: 1.34"
The wettest month (with the highest rainfall) is September (1.46").
The driest months (with the least rainfall) are January and February (0.31").
Average rainfall days in July
San Juan, TX
- Average rainfall days in July: 6.5 days
The month with the highest number of rainy days is September (15.1 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in July
San Juan, TX
- Average snowfall in July: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in July
San Juan, TX
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in July /
Average sunshine in July
San Juan, TX
- Average daylight in July: 13h and 4min
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 July: 11h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in July
San Juan, TX
- Average sunshine days in July: 23 days
The month with the most sunshine days is July (23 days).
The month with the least sunshine days is September (12.5 days).
Average UV index in July
San Juan, TX
- Average UV index in July: 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 July
San Juan, TX
- Average cloud cover in July: 19
The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in July
San Juan, 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).
San Juan, Texas, USA
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