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
The start of July marks an average high-temperature of a still very hot 97.3°F (36.3°C), hardly distinguishable from the conditions in June. Throughout the month of July, San Juan reports a steady low-temperature average of 77.5°F (25.3°C).Heat index
For July, the heat index is calculated to be a burning hot 123.8°F (51°C). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
In July, the average relative humidity is 63%.Rainfall
In San Juan, in July, it is raining for 6.5 days, with typically 1.34" (34mm) of accumulated precipitation. In San Juan, during the entire year, the rain falls for 94.1 days and collects up to 9.06" (230mm) of precipitation.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
The month with the most sunshine is July, with an average of 11.4h of sunshine.UV index
July and August, with an average maximum UV index of 8, are months with the highest UV index. A UV Index value of 8 to 10 symbolizes a very high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 8 during July leads to these instructions:
Taking safety measures is non-negotiable; skin and eyes can be swiftly affected if neglected. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
How hot is it in San Juan in July?
What is the average humidity in July in San Juan?
How many days does it rain in July in San Juan?
When it does not snow in San Juan?
What is the average length of the day in July in San Juan?
What time are sunrise and sunset in July in San Juan?
What month has the most sunshine in San Juan?
How many hours of sunshine does San Juan have in July?
What are the months with the highest UV index in San Juan?
What is the UV index intensity in July in San Juan?
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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