July weather forecastChapulhuacán, Mexico

Weather in July

July, the same as June, is a moderately hot summer month in Chapulhuacán, Mexico, with an average temperature fluctuating between 29.8°C (85.6°F) and 18.9°C (66°F).

Temperature

The arrival of July sees a recorded average high-temperature of a warm 29.8°C (85.6°F), showing little divergence from the previous month's conditions. July nights in Chapulhuacán are marked by an average low-temperature of 18.9°C (66°F).

Heat index

July's heat index is estimated at a torrid 37°C (98.6°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. 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 'feels like' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly relevant to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In July, the average relative humidity in Chapulhuacán is 80%.

Rainfall

In Chapulhuacán, during July, the rain falls for 18.8 days and regularly aggregates up to 69mm (2.72") of precipitation. In Chapulhuacán, Mexico, during the entire year, the rain falls for 179.2 days and collects up to 664mm (26.14") of precipitation.

Daylight

In July, the average length of the day in Chapulhuacán is 13h and 16min.
On the first day of July in Chapulhuacán, sunrise is at 5:57 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:14 pm CST.

Sunshine

In Chapulhuacán, Mexico, the average sunshine in July is 8.7h.

UV index

March through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 6 during July translates into the following directions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.