July weather forecast
Monterrey, Mexico

Monterrey's summer season is at its peak during July, witnessing the maximum yearly temperature of 31.5°C (88.7°F), and yet, the duration of sunshine decreases against the previous month. A welcome news for residents and tourists is the reduction in rainfall and rainy days compared to June. Despite the typical high summer temperatures, wind speed continues to provide a cooling effect across the city. The UV index peaks, serving as an important reminder to protect against sun radiation. Monterrey's July climate proves to be a delight for those who bask in the full experience of the summer season.

Temperature

A minor adjustment in Monterrey's average high-temperature is noted with the start of July, touching a still tropical 31.5°C (88.7°F) from June's 31.3°C (88.3°F). Monterrey's temperature tends to fall to an average low of 20.7°C (69.3°F) during the nights of July.

Heat index

The heat index value for July is evaluated at a torrid 35°C (95°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in July in Monterrey is 58%.

Rainfall

In Monterrey, in July, it is raining for 17.1 days, with typically 86mm (3.39") of accumulated precipitation. Throughout the year, in Monterrey, there are 158.3 rainfall days, and 602mm (23.7") of precipitation is accumulated.

Snowfall

January through November are months without snowfall in Monterrey.

Daylight

In Monterrey, Mexico, the average length of the day in July is 13h and 34min.
On the first day of the month, sunrise is at 5:53 am and sunset at 7:36 pm. On the last day of July, in Monterrey, sunrise is at 6:07 am and sunset at 7:27 pm CST.

Sunshine

The average sunshine in July in Monterrey is 10.2h.

UV index

May and July, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 7 during July translates into these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.